Sync app directory.

rsync_app.sh

#!/bin/bash
#
# SCRIPT: rsync_app
# AUTHOR: terry zheng
# E-MAIL: jfhgmv@gmail.com
# DATE: Mon Aug 13 10:33:38 2012
# REV: 1.0.A (Valid are A, B, D, T and P)
#            (for Alpha, Beta, Dev, Test and Production)
#
# PLATFORM: GNU/Linux (SPECIFY: AIX, FreeBSD, GNU/Linux, HP-UX, Solaris
#                      or Not platform dependent)
#
# PURPOSE: Give a clear, and if necessary, long, description of the purpose
#          of the shell script. This is will also help you stay focused
#          on the task at hand.
#
# REV LIST:
#     DATE: DATE_of_REVSION
#     BY: AUTHOR_of_MODIFICATION
#     MODIFICATION: Describe what was modified, new features, etc--
#
#
# set -n # Uncomment to check script syntax, without execution.
#        # NOTE: Do not forget to put the comment back in or
#        #       the shell script will not execute!
#
# set -x # Uncommet to debug this shell script.
#
################################################################
#     DEFINE FILES AND VARIABLES HERE
################################################################
PID_F="/var/tmp/run/rsync_app.pid"
LOG_F="/var/tmp/log/rsync_app-$(date +%Y%m%d).log"
SCRIPT=`basename ${0}`
USER="root"
DST_DIR="/tmp/test/"
APP1_REM_HOST_LST=("172.16.16.52" "172.16.16.53")
APP2_REM_HOST_LST=("172.16.16.54" "172.16.16.55")
APP1_LOC_DIR="/tmp/test/app1/"
APP2_LOC_DIR="/tmp/test/app2/"
################################################################
#     DEFINE FUNCTIONS HERE
################################################################

ERRTRAP()
{
  echo "[LINE:$1] Error: Command or function exited with status $?"
}

trap 'ERRTRAP $LINENO' ERR


## Define lock file
if [ -f ${PID_F} ] ; then
    old_pid=$(cat ${PID_F})
    ps -p ${old_pid} | grep ${old_pid} >/dev/null 2>&1
    [ $? -eq 0 ] && \
	echo "${SCRIPT} is already runnig, PID is ${old_pid}" && exit
else
    echo $$ > ${PID_F} || exit 43
fi

trap "rm -f ${PID_F} ; exit" INT TERM EXIT

################################################################
sync_app ()
{
    # Uesage: sync_app local_source_directory remote_server_address
    if ! $(echo ${1} | grep -q '/$') ; then
	SRC_DIR="${1}/"
    else
	SRC_DIR="${1}"
    fi
    REM_HOST=${2}
    rsync -avz --progress --delete --log-file="${LOG_F}" ${SRC_DIR} ${USER}@${REM_HOST}:${DST_DIR} 2>&1 &
}

################################################################
#     BEGINNING OF MAIN
################################################################
for app_name in $*
do
    case ${app_name} in
    app1)
	for S in ${APP1_REM_HOST_LST[*]}
	do
	    sync_app ${APP1_LOC_DIR} ${S}
	done
	;;
    app2)
	for S in ${APP2_REM_HOST_LST[*]}
	do
	    sync_app ${APP2_LOC_DIR} ${S}
	done
	;;
    *)
	echo $"Useage: ${SCRIPT} <app1_name | app2_name | ... >, such as:"
	echo "app1 == /tmp/test/app1/"
	echo "app2 == /tmp/test/app2"
	exit 44
	;;
    esac

done
echo "App synchronous completed."
rm -f ${PID_F}
exit 0
##---------------------- End of script -----------------------##