egrep is deprecated, use grep -E [1]
grep -E
aws ec2 describe-addresses | egrep -w "PublicIp|InstanceId"
fgrep
ack, ag, grep
egrep, fgrep
agrep
ngrep
pgrep
awk
sed
strings
tr
tail
mtail
git grep
wc
uniq
LogQL
findstr (Windows)
rg, git-grep, cut
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