How to parse a command output in shell script
you can use cut or sed, anyone implementation is good enough to use,
[root@giam20 ~]# sestatusSELinux status: enabledSELinuxfs mount: /selinuxCurrent mode: enforcingMode from config file: enforcingPolicy version: 24Policy from config file: targeted[root@giam20 ~]# variable=`sestatus | grep 'Current mode'|cut -f2 -d ":"`[root@giam20 ~]# echo $variableenforcing[root@giam20 ~]#
this is simple to write than above.
You can use sed
:
variable=$(the_command | sed -n 's/Current mode: \(.*\)/\1/p')
The $(cmd)
syntax is called command substituion, the statement will being expanded by the output of cmd
.