TODO…
grep – print lines matching a pattern
# man grep
NAME
grep, egrep, fgrep – print lines matching a pattern
SYNOPSIS
grep [options] PATTERN [FILE...]
grep [options] [-e PATTERN | -f FILE] [FILE...]
DESCRIPTION
Grep searches the named input FILEs (or standard input if no files are named, or the file name – is given) for lines containing a
match to the given PATTERN. By default, grep prints the matching lines.
In addition, two variant programs egrep and fgrep are available. Egrep is the same as grep -E. Fgrep is the same as grep -F.
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Exampless:
mygentoo ~ # grep ‘^[^#]‘ /etc/squid/squid.conf
