#Validating IP addess if [[ "$ip_server" =~ ^([0-9]{1,3})[.]([0-9]{1,3})[.]([0-9]{1,3})[.]([0-9]{1,3})$ ]] then for (( i=1; i<${#BASH_REMATCH[@]}; ++i )) do (( ${BASH_REMATCH[$i]} &2; exit 1; } done else echo "Check the IP address" >&2 exit 1; fi
#Validating IP addess if [[ "$ip_server" =~ ^([0-9]{1,3})[.]([0-9]{1,3})[.]([0-9]{1,3})[.]([0-9]{1,3})$ ]] then for (( i=1; i<${#BASH_REMATCH[@]}; ++i )) do (( ${BASH_REMATCH[$i]} &2; exit 1; } done else echo "Check the IP address" >&2 exit 1; fi