Title: Extracting Config Values with grep Target Length: 90 seconds Word Count: 149 words

Time	Visual / Screen Action	Audio (Narration)
0:00	Terminal window. Type: cat config.ini. The	Ever need to extract a specific value
	screen shows a few lines, highlighting	from a config file? Let's say we need
	dbpassword = su-per-se-cret-%1	to pull just the database password out
		of this file.
0:30	grep dbpassword config.ini \	Typically, we'd grep for the key name,
	awk -F' = ' '{print $2}'	in this case, "dbpassword," and then
		feed the output through awk to pull out
		just the key value.
0:60	grep -o "dbpassword" config.ini	We could also try grepping for just the
		key name, but all we'd get back is just
		the key name, not the value we need.
0:80	ggrep -oP "dbpassword = \K.*" config.ini	To get just the value, we need the -P
		flag for "Perl-compatible regex," and a
		special regex sequence: backslash K. It
		tells grep: "Match everything up to this
		point, but then drop it from the final
		output, and only keep what comes next."
1:10	sup-er-se-cret-%1	The terminal outputs only the password,
		which is perfectly isolated input for
		your bash scripts. Note that we're using
		ggrep here, because I'm running on BSD
		Unix, which doesn't support grep -P. No
		worries there.