bash scripting

Bash Scripting – TRAP

Posted on by Neelesh Gurjar

Many of us might have faced a stiuation where we have started a script, waiting for its outcome and suddenly someone/ourself do a CTRL+C by mistake to terminate the script. Wouldn’t it be nice if our script becomes ‘immune’ to CTRL+C signal. Here comes ‘trap’ command for help. ‘trap’ command basically traps the signal which…

Posted on by Neelesh Gurjar

 Script to get the list of services running on system in below format: Protocol – Port – Program Name for LIST in `netstat -nalpe | egrep -i ‘^tcp|^udp’ | grep ‘LISTEN’ | awk ‘{ print $1"|"$4"|"$9 }’`; do PROT=`echo ${LIST} | cut -d"|" -f1`; PORT=`echo ${LIST} | cut -d"|" -f2`; PORT=${PORT##*:}; PROG=`echo ${LIST} | cut…