Vlookup not using awk

UNIX for Beginners Q & A
1

Hi I just want again to ask for help on what command to use to vlookup f1 group name in "/etc/group" matching f3 of it to "/etc/passwd" f4. I do need to display group name in the output of /etc/passwd without using awk or NR==FNR command. thank you

while
IFS=: read -r f1 f2 f3 f4 f5 f6 f7
IFS=: read -r f1 f2 f3
do
printf "%-20s %-10s %s \n" "$f1" "$f3" "$f6";
done </etc/passwd # </etc/group
2

Who forbids to use awk ? Is this a homework / classwork exercise, to which special rules apply?

3

sadly yes. its an exercise having special rules needed.

4

Then, please, discontinue this thread and reopen in Homework & Coursework Questions - UNIX and Linux Forums after having read the rules (esp this one).

5

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