Episode 3 Wildcards and grep

In this episode, we use basic wildcards to select files, and then explore how the ‘grep’ command can search for words or phrases across multiple files. As always, you can follow along using the same directory structure by downloading it from https://github.com/commandlinetv/sample-files.

10 August 2015

Time Jump Topic or command
00:25  

pipeline
00:34  

filename extension
01:17  

.tar
01:41  

.gz
02:13  

xdg-open (Linux desktop)
02:31  

mv (move or rename files)
03:08  

file (show file type)
03:54  

wildcard
04:00  

* wildcard
05:46  

? wildcard
08:23  

[] wildcard
09:15  

{} wildcard
11:34  

head (first few lines)
12:34  

grep (show matching lines)
14:49  

grep --color
15:16  

case sensitivity
15:25  

grep -i (ignore-case)
16:52  

file type, binary
17:48  

grep -s (no-messages)
18:27  

grep -r (recursive)
19:03  

grep -n (line-number)
20:04  

grep -l (files-with-matches)
21:52  

grep -c (count)
22:37  

--help
22:57  

spaces
23:04  

quoting
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