jx.sh

#!/bin/sh

# set -x

[ `id -u` -ne 0 ] && { echo Not root... exiting... ; exit 1 ; }

runJExec () {

# JailID is the first column
local jid jname rc

jid=${line%% *}

# JailName is the first part of the third column
jname=${line#* } # Remove first column
jname=${jname#* } # Remove second column
jname=${jname%%.*} # Remove everything after first dot

# Check if the jailname exists
if [ "${jname}" = "$1" -o "$1" = "all" ] ; then
   if [ "$1" = "all" -a -z "$silent" ] ; then
      echo Jail: $jname
   fi
   shift
   jexec $jid $@
   rc=$?
   return $rc
else
   echo "Jail ""$1"" not started or unknown" >2
   exit 1
fi

echo $*
}

if [ $# -le 1 ] ; then
   cat <<EOT
Execute a command in a jail by name
Usage: ${0##*/} [-s] <jailname>|all <command>
           -s : silent
EOT
   exit 0
fi

if [ "$1" = "-s" ] ; then
   silent=YES
   shift
fi

if [ "$1" = "all" ] ; then
   IFS='
'
   rcall=0
   for line in `jls | sed -E '/JID  IP Address      Hostname/d;s/[[:space:]] */ /g;s/^ //'` ; do
      runJExec $@
      rc=$?
      if [ $rc -gt $rcall ] ; then rcall=$rc ; fi
   done
   exit $rcall
else
   # Get the jail details using jls
   line=`jls | sed -E '/'$1'/!d;s/[[:space:]] */ /g;s/^ //'`
   runJExec $@
   exit $?
fi