Differences

This shows you the differences between two versions of the page.

--- grep [2020/11/02 11:11] – [See Also] software tag rjt
+++ grep [2024/03/02 16:22] (current) – eg of searching for a term, tidying rjt
@@ Line 6: / Line 6: @@
 Basic use is searching a file for a particular term, and grep spitting out each line that term occurs in.
-''grep [term] [file]''
+<code bash>grep [term] [file]</code>
-With the ''E'' flag you can use the usual regular expressions. So searching for either of two terms:
+Search all files in current folder for a term.
-''grep -E '[term1]|[term2]' [file]''
+<code bash>grep -r -n -i [term] .</code>
+With the ''E'' flag you can use the usual [[regular_expression|regular expressions]]. So searching for either of two terms:
+<code bash>grep -E '[term1]|[term2]' [file]</code>
 Otherwise there's also a utility called egrep.
-NB: ''[file]]'' doesn't even have to be a file, you can use wildcard sand things there too.
+NB: ''[file]]'' doesn't even have to be a file, you can use wildcards and things there too.
-There's probably a beter way to do this, but to search for instances with all terms I use a pip, like:
+There's probably a better way to do this, but to search for instances with all terms I use a pipe, like:
-''grep '[term1]' [file] | grep '[term2]'''
+<code bash>grep '[term1]' [file] | grep '[term2]'</code>
 ===== See Also =====