'Output list of for loop as variable
I am trying to get the output of hostnames based on OS type (want only RedHat server hostnames) set as a variable.
but my code keeps spitting out the string RedHat along with each hostname.
minions=$(salt-run manage.up | cut -a " " -f2)
hosts=$(for minion in ${minions[@]}; do salt ${minion} grains.items | grep "os_family:" | grep RedHat && echo ${minion}; done)
Solution 1:[1]
By default grep will ouput the results of the pattern match.
If your version of grep supports it ... the -q flag will suppress the output:
... | grep -q RedHat && echo ${minion}; done)
Alternatively, redirect the output to /dev/null:
... | grep RedHat >/dev/null && echo ${minion}; done)
Sources
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Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 |