Difference between revisions of "Divers"
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perl -pi -w -e 's/search/replace/g;' *.php |
perl -pi -w -e 's/search/replace/g;' *.php |
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| − | -e means execute the following line of code. |
+ | -e means execute the following line of code. |
| − | -i means edit in-place |
+ | -i means edit in-place |
| − | -w write warnings |
+ | -w write warnings |
| − | -p loop |
+ | -p loop |
Example I had the following style sheet in a section: |
Example I had the following style sheet in a section: |
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Revision as of 21:27, 3 March 2008
Divers
Pour capturer les données sur le réseau:
tcpdump -X -n -t -s 0 src 192.168.0.45
Pour afficher une image en arrière-plan (X-Windows):
wmsetbg --center --workspace 0 image.jpeg
How to do a search and replace over multiple files?
You could use find and sed, but I find that this little line of perl works nicely:
perl -pi -w -e 's/search/replace/g;' *.php
-e means execute the following line of code. -i means edit in-place -w write warnings -p loop
Example I had the following style sheet in a section: <link rel="stylesheet" type="text/css" href="../includes/style.css">
and I wanted the following instead: <link rel="stylesheet" type="text/css" href="admin.css">
As each expression is a regular expression you've got to escape the special characters such as forward slash and . \.\.\/includes\/style\.css
So the final line of code ends up as perl -pi -w -e 's/\.\.\/includes\/style\.css/admin\.css/g;' *.php
