| Delete all lines in a file except those that start with “#”. | :g/^[^#].*$/d |
| Text search/replace. Transform line ‘wget http://gnucom.cc/some_backup.tar.gz’ into ‘/scripts/restorepkg some_backup.tar.gz’. This one is helpful for cPanel administrators. | :%s/wget http:.*\//\/scripts\/restorepkg /g |
| Add something to the end of every line of a file. | :%s/$/something/g |
| Add something to the beginning of every line of a file. | :%s/^/something/g |
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