How to parse a command output in shell script

Question

Can anyone please suggest me that how can I parse the below command output and store particular value in a variable.

sestatus

This is the output of that command

SELinux status:                 enabled  
SELinuxfs mount:                /selinux  
Current mode:                   enforcing  
Mode from config file:          enforcing  
Policy version:                 24  
Policy from config file:        targeted

Here I want to store "enforcing" of Current mode: in a variable.

Can anyone please suggest me.

Thanks In Advance.

Thanks All...all answers were useful.

JSP
– JSP

2014-07-04 11:41:02 +00:00
Commented Jul 4, 2014 at 11:41 — JSP
– JSP, Commented Jul 4, 2014 at 11:41

Nachiket Kate · Accepted Answer · 2014-07-04 11:24:20Z

13

you can use cut or sed, anyone implementation is good enough to use,

[root@giam20 ~]# sestatus
SELinux status:                 enabled
SELinuxfs mount:                /selinux
Current mode:                   enforcing
Mode from config file:          enforcing
Policy version:                 24
Policy from config file:        targeted
[root@giam20 ~]# variable=`sestatus | grep 'Current mode'|cut -f2 -d ":"`
[root@giam20 ~]# echo $variable
enforcing
[root@giam20 ~]#

this is simple to write than above.

answered Jul 4, 2014 at 11:24

Nachiket Kate

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hek2mgl · Accepted Answer · 2014-07-04 11:04:09Z

8

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.

answered Jul 4, 2014 at 11:04

hek2mgl

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Comments

Simas · Accepted Answer · 2020-03-27 07:20:00Z

8

You can use awk:

variable=`sestatus | awk '/Current mode:/ {print $3}'`

edited Mar 27, 2020 at 7:20

Simas

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answered Jul 4, 2014 at 11:26

jaceved2

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