vesta/bin/v-get-sys-timezone

#!/bin/bash
# info: get system timezone
# options: [FORMAT]
#
# The function to get system timezone


#----------------------------------------------------------#
#                    Variable&Function                     #
#----------------------------------------------------------#

# Argument definition
format=${1-shell}

# Includes
source $VESTA/func/main.sh


#----------------------------------------------------------#
#                       Action                             #
#----------------------------------------------------------#

# Checking timesonze on RHEL/CentOS
if [ -f "/etc/sysconfig/clock" ]; then
    source /etc/sysconfig/clock

# Checking timezone on Debian/Ubuntu
elif [ -f "/etc/timezone" ]; then
    ZONE=$(cat /etc/timezone)

# Checking symlynks
elif [ -h /etc/localtime ]; then
    ZONE=$(readlink /etc/localtime | sed "s%.*share/zoneinfo/%%")

# Parsing zoneinfo (very slow)
else
    checksum=$(md5sum /etc/localtime | cut -d' ' -f1)
    ZONE=$(find /usr/share/zoneinfo/ -type f -exec md5sum {} \; |\
        grep "^$checksum" | sed "s/.*\/usr\/share\/zoneinfo\///" | head -n 1)
fi

echo $ZONE


#----------------------------------------------------------#
#                       Vesta                              #
#----------------------------------------------------------#

exit