grab two values from command output in a for loop

Question

I'm trying to loop through all of the repositories on our satellite servers and list the number of rpms in each. I need the repository ID and NAME which I can get from

hammer --csv repository list | grep -v 'Id,Name' | cut -d, -f1,2`

Given ID and NAME, I can get the number of packages and print out:

SUM=$(hammer repository info --id ${ID} | grep Packages | awk '{ print $2 }');
echo "In repository, ${NAME}, there are ${SUM} packages."

I just can't figure out how to put that in a loop. Any suggestions?

Pipe the output of the command to a while read sum name loop. — Barmar
– Barmar, Commented Nov 10, 2022 at 16:27

Renaud Pacalet · Accepted Answer · 2022-11-10 16:35:04Z

1

You could try something like:

hammer --csv repository list | grep -v 'Id,Name' | while IFS=, read -r ID NAME; do
  SUM=$(hammer repository info --id ${ID} | grep Packages | awk '{ print $2 }')
  echo "In repository, ${NAME}, there are ${SUM} packages."
done

answered Nov 10, 2022 at 16:35

Renaud Pacalet

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2 Comments

j_b Over a year ago

Could the pipe to grep Packages be replaced with a pipe to `awk /Packages/ { print $2 }'?

Renaud Pacalet Over a year ago

Yes, it would do the same.

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