From 5e796c23aa2a70808c026c1f03fc691a4eca2cd0 Mon Sep 17 00:00:00 2001
From: david <david@socialnerds.org>
Date: Sat, 27 Apr 2013 21:00:51 +0200
Subject: [PATCH] removed old code. moved to version 0.3

---
 README.md         |  51 +++----
 listfile_sample   |   9 --
 sshbackup         | 285 +++++++++++++++++++++++++++++++++++++++
 sshbackup.sh      | 226 -------------------------------
 sshbackup_v0.3.sh | 329 ----------------------------------------------
 sshsudo           | 184 --------------------------
 6 files changed, 306 insertions(+), 778 deletions(-)
 delete mode 100644 listfile_sample
 create mode 100755 sshbackup
 delete mode 100755 sshbackup.sh
 delete mode 100755 sshbackup_v0.3.sh
 delete mode 100755 sshsudo

diff --git a/README.md b/README.md
index 03e2e64..2fc5768 100644
--- a/README.md
+++ b/README.md
@@ -1,37 +1,28 @@
 sshbackup
 =========
 
-bash script which does incremental backups through ssh using rsync.
-it is supposed to be amazingly easy to install, configure and maintain.
+for automated backups configure a sshkey for the user running sshbackup.
 
+you must add following to /etc/sudoers on your remote servers as well to
+make automated backups work
+```backupuser ALL=(root)NOPASSWD: /usr/bin/rsync```
 
-installation/usage:
-* put the file sshbackup.sh somewhere you like to have it and run it as root.
-* root must have a sshkey to connect to remote machines.
-* first option must be the sourcefile.
-* sourcefile example can be found in sourcefile sample.
-* logs go to /var/log/sshbackup.log
-* configure a cron job for continuous backups
-
-in order to have mail notifications working you need your cron system be able
-to send mails with the MAILTO directive in crontab.
-the sshbackup scripts only output to stdout will be when an error occures.
-cron will send you a mail on output to stdout of a script which is run by it.
-
-
-
-bugs/features:
-* the remote sourcepath must be able to be listed by the remote backup user
-
-
-todo/wanted: (roadmap)
-* deploy feature (deploy required settings to remote machine)
-* better notification system (for now its just crons mail on output feature)
-* check if destination is full
-
-
-license:
-* public domain (do whatever, i'm not claiming anything)
-
+a example config for default values in ~/.sshbackup looks like this:
+```
+#rsync options.
+rsyncoptions="-pogEthrzl --numeric-ids --no-motd"
+#dotglob option removes bug while rsyncing folder with no visible files in it.
+remotecmd="shopt -s dotglob; /usr/bin/sudo /usr/bin/rsync"
+localcmd="/usr/bin/rsync"
+sshkeyfile="$HOME/.ssh/id_rsa"
+```
 
+if you are running sshbackup through cron configure the MAILTO
+directive for getting error notifications.
 
+a list file could look like this
+```
+david@dev.socialnerds.org:/home/david /home/david/Downloads/devhome 30
+backupuser@dev.socialnerds.org:/home/gollum/ /home/david/Downloads/gollum
+/home/david/something /home/david/backup 5
+```
diff --git a/listfile_sample b/listfile_sample
deleted file mode 100644
index d992b99..0000000
--- a/listfile_sample
+++ /dev/null
@@ -1,9 +0,0 @@
-# in here are the backup sources supposed to be
-# one source per line (no tailing slashes)
-
-# <user@remotemachine:/remote/path> </local/path> <versions>
-
-user@server1.example.com:/srv/projects/* /home/david/testback/git 3
-user@server2.example.com:/srv/backup/* /home/david/testback/duffman 3
-user2@server3:/media/storage2/* /home/david/testback/cartman 30
-
diff --git a/sshbackup b/sshbackup
new file mode 100755
index 0000000..6fdc06e
--- /dev/null
+++ b/sshbackup
@@ -0,0 +1,285 @@
+#!/bin/sh
+
+# ************************************* #
+#                                       #
+#               sshbackup               #
+#                                       #
+# ************************************* # 
+
+#  ****  config section  ****
+version="0.3"
+author="david@socialnerds.org"
+
+configfile="$HOME/.sshbackup"
+#rsync options.
+rsyncoptions="-pogEthrzl --numeric-ids --no-motd"
+#dotglob option removes bug while rsyncing folder with no visible files in it.
+remotecmd="shopt -s dotglob; /usr/bin/sudo /usr/bin/rsync"
+localcmd="/usr/bin/rsync"
+
+sshkeyfile="$HOME/.ssh/id_rsa"
+
+versions=999
+config=0
+sshkey=0
+list=0
+options=$*
+
+
+#  ****  function definitions  ****
+bashtrap()
+{
+
+    echo
+    echo "CTRL+C detected."
+    echo "commiting suicide."
+    exit 1
+
+}
+
+usage()
+{
+
+    echo
+    echo "usage: sshbackup <options> source destination [versions]"
+    echo "source/destination example: [[user@]server:]/path/to/files"
+    echo
+    echo "OPTIONS:"
+    echo "   -h, --help                show this message"
+    echo "   -v, --version             version information"
+    echo
+    echo "   -c, --config <file>       alternate config file [~/.sshbackup]"
+    echo "   -l, --list <file>         list of sources and destinations"
+    echo "   -s, --sshkey <file>       alternate sshkey [~/.ssh/id_rsa]"
+    echo
+
+}
+
+version()
+{
+
+    echo
+    echo -e "vesion: \033[1;37m$version\033[0m"
+    echo "author: $author"
+    echo
+
+}
+
+preflight()
+{
+
+    #amiroot?
+    if [ $(whoami) != "root" ]; then
+        echo "aborting mission. you must be root."
+        return 1
+    fi
+
+    #source and destination path?
+    if [ -z $sourcepath ]; then
+        echo "aborting mission. no source path given."
+        return 1
+    elif [ -z $destinationpath ]; then
+        echo "aborting mission. no destination path given."
+        return 1
+    fi
+
+    #if remote source or destination check for sshkey
+    if [[ $sourcepath =~ .*@.* ]] || [[ $destinationpath =~ .*@.* ]]; then
+        if [ -r $sshkeyfile ]; then
+            #echo "sshkeyfile found. continuing."
+            :
+        else
+            echo "aborting mission. no sshkey found."
+            return 1
+        fi
+    fi
+
+    return 0
+
+
+}
+
+sshbackup()
+{
+
+    #creating local rsync options var
+    local cmdopt="$rsyncoptions"
+
+    #move existing versions
+    local num=$versions
+    while [ -d "$destinationpath/0" ]; do
+        if [ -d "$destinationpath/$num" ]; then
+            mv $destinationpath/$num $destinationpath/$((num+1))
+        fi
+        let num--
+    done
+
+    #create destinationpath if not existing
+    mkdir -p $destinationpath/0
+
+    #add link-destination option if existing
+    if [ -d $destinationpath/1 ]; then
+        cmdopt="$cmdopt --link-dest=$destinationpath/1"
+    fi
+
+    #run rsync
+    $localcmd $cmdopt -e "ssh -q -i $sshkeyfile" --rsync-path="$remotecmd" $sourcepath $destinationpath/0
+    if [ $? -ne "0" ]; then
+        return 1
+    fi
+
+    #removing obsolet version(s)
+    local i=1
+    while [ -d $destinationpath/$((versions+i)) ]; do
+        rm -rf $destinationpath/$((versions+i))
+        let i++
+    done
+
+    return 0
+
+}
+
+
+#  ****  start of script  ****
+
+#initialize bashtrap
+trap bashtrap INT
+
+#  ****  option handler  ****
+if [ -z $1 ]; then
+    usage
+    exit 0
+fi
+
+for option in $options; do
+    case "$option" in
+        -h|--help)
+            usage
+            exit 0
+            ;;
+        -v|--version)
+            version
+            exit 0
+            ;;
+        -c|--config)
+            config=1
+            ;;
+        -l|--list)
+            list=1
+            ;;
+        -s|--sshkey)
+            sshkey=1
+            ;;
+        *)
+            if [ $config -eq 1 ]; then
+                if [ -r "$option" ]; then
+                    configfile=$option
+                    config=0
+                else
+                    echo "aborting mission. cannot read configfile. [$option]"
+                    exit 1
+                fi
+            elif [ $sshkey -eq 1 ]; then
+                if [ -r $option ]; then
+                    sshkeyfile=$option
+                    sshkey=0
+                else
+                    echo "aborting mission. cannot read sshkeyfile. [$option]"
+                    exit 1
+                fi
+            elif [ $list -eq 1 ]; then
+                if [ -r $option ]; then
+                    listfile=$option
+                    list=0
+                else
+                    echo "aborting mission. cannot read listfile. [$option]"
+                    exit 1
+                fi
+            else
+                if [[ $option =~ ^-.* ]]; then
+                    echo "aborting mission. unknown option given. [$option]"
+                    usage
+                    exit 1
+                #TODO: what if source or destination is a number?
+                elif [ -z "${option//[0-9]/}" ]; then
+                    versions="$option"
+                else
+                    if [ -z "$sourcepath" ]; then
+                        if [[ $option =~ .*@.* ]]; then
+                            sourcepath="${option%/}/"
+                        elif [[ $option =~ ^/.* ]]; then
+                            sourcepath="${option%/}/"
+                        else
+                            sourcepath="$(pwd)/${option%/}/"
+                        fi
+                    else
+                        if [ -z "$destinationpath" ]; then
+                            if [[ $option =~ ^/.* ]]; then
+                                destinationpath="${option%/}"
+                            else
+                                destinationpath="$(pwd)/${option%/}"
+                            fi
+                        fi
+                    fi
+                fi
+            fi
+            ;;
+    esac
+done
+
+if [ -r "$configfile" ]; then
+    source "$configfile"
+fi
+
+#read list if listfile is given
+if [ -r "$listfile" ]; then
+    while read line; do
+        # find first letter
+        fletter=${line:0:1}
+        if [ -z $fletter ]; then
+            #skip line it's empty
+            :
+        elif [ $fletter = "#" ]; then
+            #skip line it's a comment
+            :
+        else
+            sourcepath=""
+            destinationpath=""
+            for option in $line; do
+                if [ -z "${option//[0-9]/}" ]; then
+                    versions="$option"
+                else
+                    if [ -z "$sourcepath" ]; then
+                        if [[ $option =~ .*@.* ]]; then
+                            sourcepath="${option%/}/"
+                        elif [[ $option =~ ^/.* ]]; then
+                            sourcepath="${option%/}/"
+                        else
+                            sourcepath="$(pwd)/${option%/}/"
+                        fi
+                    else
+                        if [ -z "$destinationpath" ]; then
+                            if [[ $option =~ ^/.* ]]; then
+                                destinationpath="${option%/}"
+                            else
+                                destinationpath="$(pwd)/${option%/}"
+                            fi
+                        fi
+                    fi
+                fi
+            done
+
+            if ( preflight ); then
+                sshbackup
+            fi
+        fi
+    done < "$listfile"
+else
+    if ( preflight ); then
+        sshbackup
+    fi
+fi
+
+
+#  ****  end of script  ****
+exit 0
diff --git a/sshbackup.sh b/sshbackup.sh
deleted file mode 100755
index f681edb..0000000
--- a/sshbackup.sh
+++ /dev/null
@@ -1,226 +0,0 @@
-#!/bin/bash
-
-
-# ************************************* #
-#                                       #
-#               sshbackup               #
-#                                       #
-# ************************************* #
-
-
-#  ****  config section  ****
-# do not touch as long as you're not me
-author="david@socialnerds.org"
-version="0.2.0"
-
-#rsync options.
-options="-pogEthrzl --numeric-ids --no-motd"
-#dotglob option removes bug while rsyncing folder with no visible files in it.
-remotecmd="shopt -s dotglob; /usr/bin/sudo /usr/bin/rsync"
-localcmd="/usr/bin/rsync"
-
-#where should i write the log file?
-logfile="/var/log/sshbackup.log"
-#sourcefile="/etc/sshbackup.lst"
-
-sshkeyfile="$HOME/.ssh/id_rsa"
-
-
-#  ****  function definitions  ****
-
-bashtrap()
-{
-
-    echo
-    echo "CTRL+C detected."
-    echo "commiting suicide."
-    exit 1
-
-}
-
-usage()
-{
-
-    echo
-    echo "usage: sshbackup <options>"
-    echo
-    echo "OPTIONS:"
-    echo "   -h, --help                    show this message"
-    echo "   -v, --version                 show version information"
-    echo
-
-}
-
-version()
-{
-
-    echo
-    echo "sshbackup"
-    echo
-    echo -e "vesion: \033[1;37m$version\033[0m"
-    echo "author: $author"
-    echo
-
-}
-
-amiroot()
-{
-    if [ "$USER" != "root" ]; then
-        return 1
-    else
-        return 0
-    fi
-}
-
-preflight()
-{
-
-    if [ -r $sshkeyfile ]; then
-        :
-    else
-        echo "error: ssh keyfile not found in $sshkeyfile. aborting mission."
-        exit 1
-    fi
-
-}
-
-deploy()
-{
-
-
-}
-
-
-#pulling files through ssh (actual backup process)
-sshbackup()
-{
-
-    if [ $(amiroot; echo $?) -ne 0 ]; then
-        echo "error: this script must be run with root privileges. aborting mission."
-        exit 1
-    fi
-
-    preflight
-
-    local sourcefile=$1
-
-    # reading sources config file (line by line)
-    while read line; do
-
-        # find first letter
-        local fletter=${line:0:1}
-
-        if [ -z $fletter ]; then
-            #skip line it's empty
-            :
-
-        elif [ $fletter = "#" ]; then
-            #skip line it's a comment
-            :
-
-        else
-            #creating needed vars
-            local server=$(echo "$line" | awk '{print $1}')
-            local sourcepath=$(echo "$line" | awk '{print $2}')
-            local destpath=$(echo "$line" | awk '{print $3}')
-            local versions=$(echo "$line" | awk '{print $4}')
-
-            #creating optional vars
-            local speed=$(echo "$line" | awk '{print $5}')
-
-            #check for speed limit
-            if [ -z $speed ]; then
-                #no speed limit provided in config
-                local cmdopt="$options"
-            else
-                #adding speed limit to rsync options
-                local cmdopt="$options --bwlimit=$speed"
-            fi
-
-            #move existing versions
-            local num=$versions
-            while [ -d "$destpath/0" ]; do
-                if [ -d "$destpath/$num" ]; then
-                    mv $destpath/$num $destpath/$((num+1))
-                    if [ $? != 0 ]; then
-                        echo "error - could not move version $num to version $((num+1))"
-                    fi
-                fi
-                let num--
-            done
-
-            #create destpath if not existing
-            mkdir -p $destpath/0
-
-            #add link-dest option
-            if [ -d $destpath/1 ]; then
-                #existing
-                local cmdopt="$cmdopt --link-dest=$destpath/1"
-            fi
-
-            #create connectionstring
-            local constring="$server:$sourcepath"
-
-
-            #get the MB to transfer
-            #test=$(($(rsync -vrl --no-motd --dry-run --stats david@10.1.2.4:/srv/storage/david/videos /home/david/ | grep "Total transferred file size" | awk '{print $5}' | grep -e '[0-9]')/1000000))
-
-            #run rsync
-            echo "[$(date '+%Y%m%d%H%M')] starting rsync job: $server:$sourcepath" >> $logfile
-            $localcmd $cmdopt -e "ssh -q -i $sshkeyfile" --rsync-path="$remotecmd" $constring $destpath/0
-            if [ $? = "0" ]; then
-                echo "[$(date '+%Y%m%d%H%M')] rsync job successfully finished: $server:$sourcepath" >> $logfile
-            else
-                echo "[$(date '+%Y%m%d%H%M')] rsync job unsuccessful: $server:$sourcepath" >> $logfile
-                echo "error: rsync job unsuccessful: $server:$sourcepath"
-            fi
-
-            #removing obsolet version(s)
-            #TODO: remove higher versions if versionsnumber in sourcefile is lower
-            if [ -d "$destpath/$((versions+1))" ]; then
-                rm -rf $destpath/$((versions+1))
-            fi
-
-        fi
-
-        #count lines for debug output
-        let linecount++
- 
-    done < $sourcefile
-
-}
-
-
-#  ****  start of script  ****
-
-#initialize bashtrap
-trap bashtrap INT
-
-#check dependencies/environment
-#install dependencies on debian, ubuntu, arch, fedora, redhat, centos
-#develope a os_check_install_dependencies_function for different distros
-#will be practical for all kinds of scripts
-#dependencies: rsync, telnet, bash, sudo
-
-#option handler
-if [ -z $1 ]; then
-    echo "no sourcefile given. exiting."
-    usage
-    exit 1
-elif [ -r $1 ]; then
-    sshbackup $1
-    exit $?
-elif [ $1 == "--help" ] || [ $1 == "-h" ]; then
-    usage
-    exit 0
-elif [ $1 == "--version" ] || [ $1 == "-v" ]; then
-    version
-    exit 0
-else
-    echo "unknown option given or sourcefile not readable. exiting."
-    usage
-    exit 1
-fi
-
-
-#  ****  end of script  ****
diff --git a/sshbackup_v0.3.sh b/sshbackup_v0.3.sh
deleted file mode 100755
index eb25b31..0000000
--- a/sshbackup_v0.3.sh
+++ /dev/null
@@ -1,329 +0,0 @@
-#!/bin/sh
-
-# ************************************* #
-#                                       #
-#               sshbackup               #
-#                                       #
-# ************************************* # 
-
-#  ****  config section  ****
-version="0.3"
-author="david@socialnerds.org"
-
-configfile="$HOME/.sshbackup"
-sourcefile=""
-#rsync options.
-rsyncoptions="-pogEthrzl --numeric-ids --no-motd"
-#dotglob option removes bug while rsyncing folder with no visible files in it.
-remotecmd="shopt -s dotglob; /usr/bin/sudo /usr/bin/rsync"
-localcmd="/usr/bin/rsync"
-
-#where should i write the log file?
-logfile="/var/log/sshbackup.log"
-
-sshkeyfile="$HOME/.ssh/id_rsa"
-
-config=0
-sshkey=0
-deploy=0
-list=0
-options=$*
-
-
-#  ****  function definitions  ****
-bashtrap()
-{
-
-    echo
-    echo "CTRL+C detected."
-    echo "commiting suicide."
-    exit 1
-
-}
-
-usage()
-{
-
-    echo
-    echo "usage: sshbackup <options> source destination [versions]"
-    echo "source/destination example: [[user@]server:]/path/to/files"
-    echo
-    echo "OPTIONS:"
-    echo "   -h, --help                    show this message"
-    echo "   -v, --version                 version information"
-    echo "   -c, --config <configfile>     alternate config file"
-    echo "   -l, --list <listfile>         list of sources and destinations"
-    echo "   -s, --sshkey <sshkeyfile>     alternate sshkeyfile"
-    echo "   -d, --deploy <remote machine> deploy remote settings"
-    echo
-
-}
-
-version()
-{
-
-    echo
-    echo -e "vesion: \033[1;37m$version\033[0m"
-    echo "author: $author"
-    echo
-
-}
-
-preflight()
-{
-
-    #amiroot
-    if [ $(whoami) != "root" ]; then
-        #echo "no root privileges available. continuing without."
-        :
-    fi
-
-    if [ -z $sourcepath ]; then
-        echo "aborting mission. no source path given."
-        exit 1
-    elif [ -z $destinationpath ]; then
-        echo "aborting mission. no destination path given."
-        exit 1
-    fi
-
-    if [ -r $sshkeyfile ]; then
-        #echo "sshkeyfile found"
-        :
-    else
-        #am i being run by cron?
-        tty -s
-        if [ $? -eq 0 ]; then
-            #echo "i am running in interactive mode"
-            echo "you do not have a sshkey configured."
-            echo -e "do you want to create a new keypair? [y] \c"
-            read answer
-            if [ -z $answer ]; then
-                answer="y"
-            fi
-            if [ $answer == "y" ] || [ $answer == "Y" ]; then
-                #create keypair
-                :
-            else
-                #continue without sshkey
-                :
-            fi
-        else
-            echo "aborting mission. no sshkey found."
-            exit 1
-        fi
-
-    fi
-
-
-}
-
-#work in progress
-deploy()
-{
-
-    backupuser="sshbackup"
-    publickey="/home/david/.ssh/id_rsa.pub"
-    publickey=$(cat $publickey)
-
-    # ask if to continue when run as root
-    if [ $USER == "root" ]; then
-        echo "there is no need to run this script with root privileges."
-        echo "however, it is possible if you wish to do so anyway."
-        echo -e "do you want to continue as root [y/n]? \c"
-        read answer
-        if [ $answer == "y" ] || [ $answer == "Y" ]; then
-            :
-        else
-            exit 1
-        fi
-    fi
-    answer=""
-
-    echo -e "remote admin [$USER]: \c"
-    read answer
-    if [ -z $answer ]; then
-        remoteadmin=$USER
-    else
-        remoteadmin=$answer
-    fi
-    answer=""
-    
-    echo -e "backupuser [$backupuser]: \c"
-    read answer
-    if [ -z $answer ]; then
-        :
-    else
-        backupuser=$answer
-    fi
-    answer=""
-    
-    while [ -z $remotemachine ]; do
-        if [ -z $1 ]; then
-            echo -e "remote ip or hostname: \c"
-            read answer
-            remotemachine=$answer
-        else
-            remotemachine=$1
-        fi
-    done
-    answer=""
-    
-
-    cat /etc/passwd | grep -e ^$backupuser
-    if [ \$? -eq 0 ]; then
-        echo "error: $backupuser already exists on $remotemachine"
-        echo "info: aborting mission."
-        exit 1
-    else
-        echo "info: attempting to create user: $backupuser"
-        useradd -m -d /home/$backupuser $backupuser
-        if [ \$? -eq 0 ]; then
-            mkdir /home/$backupuser/.ssh
-            echo $publickey >> /home/$backupuser/.ssh/authorized_keys
-            if [ \$? -eq 0 ]; then
-                echo "info: user created and public key added to authorized hosts."
-            else
-                echo "error: user created but adding the public key to authorized hosts returned a non-zero value. aborting mission."
-            fi
-        else
-            echo "error: useradd returned a non-zero value. aborting mission."
-            exit 1
-        fi
-    fi
-
-}
-
-sshbackup()
-{
-
-    #debugging
-    #echo "source: $sourcepath"
-    #echo "destination: $destinationpath"
-    #echo "versions: $versions"
-    #echo "sshkey: $sshkeyfile"
-    #echo "config: $configfile"
-
-
-
-
-}
-
-
-#  ****  start of script  ****
-
-#initialize bashtrap
-trap bashtrap INT
-
-#  ****  option handler  ****
-if [ -z $1 ]; then
-    echo "no options given. aborting mission."
-    usage
-    exit 1
-fi
-
-for option in $options; do
-    case "$option" in
-        -h|--help)
-            usage
-            exit 0
-            ;;
-        -v|--version)
-            version
-            exit 0
-            ;;
-        -c|--config)
-            config=1
-            ;;
-        -l|--list)
-            list=1
-            ;;
-        -s|--sshkey)
-            sshkey=1
-            ;;
-        -d|--deploy)
-            deploy=1
-            ;;
-        *)
-            if [ $config -eq 1 ]; then
-                if [ -r $option ]; then
-                    configfile=$option
-                    config=0
-                else
-                    echo "aborting mission. cannot read configfile. [$option]"
-                    exit 1
-                fi
-            elif [ $sshkey -eq 1 ]; then
-                if [ -r $option ]; then
-                    sshkeyfile=$option
-                    sshkey=0
-                else
-                    echo "aborting mission. cannot read sshkeyfile. [$option]"
-                    exit 1
-                fi
-            elif [ $deploy -eq 1 ]; then
-                remotemachine=$option
-                deploy=0
-            elif [ $list -eq 1 ]; then
-                if [ -r $option ]; then
-                    listfile=$option
-                    list=0
-                else
-                    echo "aborting mission. cannot read listfile. [$option]"
-                    exit 1
-                fi
-            else
-                if [[ $option =~ ^-.* ]]; then
-                    echo "aborting mission. unknown option given. [$option]"
-                    usage
-                    exit 1
-                #TODO: what if source or dest is a number?
-                elif [ -z "${option//[0-9]/}" ]; then
-                    if [ -z $versions ]; then
-                        versions=$option
-                    fi
-                else
-                    if [ -z $sourcepath ]; then
-                        sourcepath=$option
-                    else
-                        if [ -z $destinationpath ]; then
-                            destinationpath=$option
-                        fi
-                    fi
-                fi
-            fi
-            ;;
-    esac
-done
-
-if [ -r "$configfile" ]; then
-    source $configfile
-fi
-
-#read list if listfile is given
-if [ -r "$listfile" ]; then
-    while read line; do
-        # find first letter
-        fletter=${line:0:1}
-        if [ -z $fletter ]; then
-            #skip line it's empty
-            :
-        elif [ $fletter = "#" ]; then
-            #skip line it's a comment
-            :
-        else
-            #creating variables
-            sourcepath=$(echo "$line" | awk '{print $1}')
-            destinationpath=$(echo "$line" | awk '{print $2}')
-            versions=$(echo "$line" | awk '{print $3}')
-            preflight
-            sshbackup
-        fi
-    done < $listfile
-else
-    preflight
-    sshbackup
-fi
-
-
-#  ****  end of script  ****
-exit 0
diff --git a/sshsudo b/sshsudo
deleted file mode 100755
index c63bebb..0000000
--- a/sshsudo
+++ /dev/null
@@ -1,184 +0,0 @@
-#!/bin/bash 
-#
-# sshsudo: 1.0
-# Author: jiwu.liu@gmail.com
-#
-#   The script executes sudo command on one or more remote computers. 
-# Its arguments are the names to remote sudoers and remote computers.
-# The script read the password from the standard input, which should 
-# be the same for all sudoer accounts. No password is explicitly shown 
-# in the terminal or logged to files.
-#   If the command is a local shell script, use '-r' to copy it to 
-# the remote computers to execute. A temporary script file will be 
-# automatically created for this purpose.
-# 
-#
-# TO DO: It can not execute a command that use the shell special charaters 
-#        on the remote computer, such as & ; ! *, because all arguments
-#        are wrapped with ''. That means, all special characters have only 
-#        literal meanings. In the case when they are needed, use a script 
-#        instead of a command. 
-# 
-# Example:sshsudo foo@bar.net apt-get check 
-#         sshsudo -r foo@bar.net myscript.sh
-
- 
-usage()
-{
-    local ProgName=$1;
-    echo "Usage: $ProgName -r -v [-u user] AccountList  Command [Arguments]"
-    echo "       -u Set the default user unless it is given within remote account list"
-    echo "       -r Copy the command(usually the path to local script) to remote computers before execution"
-    echo "       -v Verbose output"
-    echo "       AccountList: [user1@]computer1,[user2@]computer2,[user3@]computer3,..." 
-    echo "                    or the name to file which contains accounts(user@computer) in separate lines"
-    echo "       Command: The Command/Script to be executed"
-    echo "       Arguments: All arguments to be passed to command."
-}
-
-pipewrap()
-{
-    # This function reads in the input from a terminal and output the same. 
-    # The only purpose is to insert PASSWORD for "sudo -S" command.
-    # After initially insert the password, it simply copy input from terminal 
-    # and send it to ssh command directly
-    echo $1  # which is password
-    local lockFile=$2;
-    while true; do
-        # The function will exit when output pipe is closed, 
-        if [ ! -e $lockFile ]; then
-            return 0
-        fi
-        # i.e., the ssh
-        read -t 1 line
-        if [ $? -eq 0 ]; then 
-            # successfully read
-            echo $line
-        fi
-    done
-}
-
-runsudo ()
-{
-    # receive its arguments
-    local ACCOUNT=$1;
-    local PASSWORD=$2;
-    local COMMAND=$3;
-    local ARGUMENTS=$4;
-    local DEFAULTUSER=$5;
-    local COPY=$6;
-    local VERBOSE=$7;
-
-    # Parse account which has the form user@computer.domain
-    local REMOTEUSER=${ACCOUNT%%@*}
-    local REMOTECOMPUTER=${ACCOUNT#*@}
-    local REMOTESCRIPT=
-    local REMOTECOMMAND=$COMMAND
-    if [ $REMOTEUSER = $REMOTECOMPUTER ]; then
-        # There is no @, i.e., only computer name is given
-        REMOTEUSER=$DEFAULTUSER
-    fi
-    echo =========================${REMOTEUSER}@$REMOTECOMPUTER: sudo $COMMAND $ARGUMENTS
-    if [ $COPY -ne 0 ]; then
-        # Make a script + seconds since 1970-01-01
-        REMOTESCRIPT=/tmp/$COMMAND`date +%s`
-        if [ $VERBOSE -ne 0 ]; then 
-            echo $REMOTECOMPUTER: Secure copy \"$COMMAND\" to \"$REMOTESCRIPT\"
-        fi
-        # Copy to remote computer. Quote target name on the remote computer for script name 
-        # that contains " "
-        sshpass -p "$PASSWORD" scp "$COMMAND" "$REMOTEUSER@$REMOTECOMPUTER:'$REMOTESCRIPT'"
-        REMOTECOMMAND=$REMOTESCRIPT
-    fi
-
-    # Assume we are lucky, result is fine. 
-    local RES=DONE
-    # Invalidate the sudo timestamp. Simplify the situation. Henceforth sudo always ask for a password 
-    sshpass -p "$PASSWORD" ssh "$REMOTEUSER@$REMOTECOMPUTER" "sudo -K"
-
-    # Use lock file to inform pipewrap function to exit. 
-    local lockFile=`mktemp`
-    eval pipewrap '$PASSWORD' '$lockFile' | (sshpass -p "$PASSWORD" ssh  "$REMOTEUSER@$REMOTECOMPUTER" "sudo -S '$REMOTECOMMAND' $ARGUMENTS"; rm "$lockFile")
-
-    if [ $? -ne 0 ]; then
-       RES=FAILED 
-    fi
-    if [ $COPY -ne 0 ]; then
-        sshpass -p $PASSWORD ssh "$REMOTEUSER@$REMOTECOMPUTER" rm \'$REMOTESCRIPT\'
-        if [ $VERBOSE -ne 0 ]; then 
-            echo Remove temporary script  \"$REMOTESCRIPT\" at [$REMOTECOMPUTER]
-        fi
-    fi
-    echo ----------------------------------${RES}!!----------------------------------------
-}
-
-
-#=====================================Main Script========================================
-#
-# Set default values for variables 
-COMMAND=
-ARGUMENTS=
-COPY=0
-VERBOSE=0
-ACCOUNTLIST=
-DEFAULTUSER=$USER
-
-# Parse the command line arguments with '-'
-while getopts u:hrv o ; do
-    case "$o" in
-        [?])  usage $0 
-              exit 1;;
-        h)    usage $0 
-              exit 0;;
-        u)  DEFAULTUSER=$OPTARG;;
-        v)  VERBOSE=1;;
-        r)  COPY=1;;
-    esac
-done
-
-# Read the rest command line arguments
-if [ $(($#-$OPTIND+1)) -lt 2 ]; then
-    echo Error: Account list and command have to be in the arguments
-    usage $0
-    exit 4
-fi
-
-shift $(($OPTIND-1))
-ACCOUNTLIST=$1
-shift
-COMMAND=$1
-shift
-for PARAM; do
-    ARGUMENTS=$ARGUMENTS\'$PARAM\'" "
-done
-
-# Check the validity of the script command if remote copy is needed
-if [ $COPY -ne 0 ]; then
-    if [ ! -e "$COMMAND" ]; then
-        echo  \"$COMMAND\" does not exist.
-        exit 3
-    fi
-    if [ ! -x "$COMMAND" ]; then
-        echo \"$COMMAND\" can not be executed. 
-        exit 3
-    fi
-fi
-    
-# Read in the password from the STDIN
-read -s -p "Please enter your password:" PASSWORD
-echo 
-
-# Start running
-if [ -e $ACCOUNTLIST ]; then # read accounts from a file
-    for ACCOUNT in `cat $ACCOUNTLIST`; do
-        runsudo "$ACCOUNT" "$PASSWORD" "$COMMAND" "$ARGUMENTS" "$DEFAULTUSER" "$COPY" "$VERBOSE";
-    done
-
-else # ACCOUNTLIST is a comma separated list of user@computer strings.
-    # Change the internal separation field. 
-    IFS=,
-    for ACCOUNT in $ACCOUNTLIST; do
-        runsudo "$ACCOUNT" "$PASSWORD" "$COMMAND" "$ARGUMENTS" "$DEFAULTUSER" "$COPY" "$VERBOSE";
-    done
-fi
-#EOF