virsh_exec_single_line.sh

virsh_exec_single_line.sh

#!/bin/bash

usage() {
    echo "Usage: `basename $0` target password logfile <command>"
    exit 0
}

while getopts c: OPT
do
  case $OPT in
    "c" ) export LIBVIRT_DEFAULT_URI=$OPTARG ;;
  esac
done
shift $[OPTIND - 1]

LANG=C
[ $# -lt 3 ] && usage
target=$1
pass=$2
logfile=$3
shift 3
cmd="$@"
#echo $cmd
expfile="/tmp/test-expect-script-$$.exp"

cat <<EOF > $expfile
#!/usr/bin/expect

set timeout 100
set target $target
set pass $pass
log_file -noappend $logfile

spawn virsh console --force $target
expect "Escape character is"
send "\n"
expect "login: " {
    send "root\n"
    expect "Password: "
    send "$pass\n"
} "~]# " {
    send "\n"
}
send "echo start_exec_given_command > /dev/null\n"
send "$cmd\n"

send "echo end_exec_given_command > /dev/null\n"
send "exit\n"
send "\n"
expect "login: "
send "\n"
expect "login: "
send -- "^]"
interact
EOF

#cat $expfile
expect $expfile > /dev/null
gawk '
    BEGIN { window = 0 }
    /end_exec_given_command/ { window = 0 }
    { if (window == 1) { print } }
    /start_exec_given_command/ { window = 1 }
' $logfile