Comments on: *nix commands I can’t do without

By: Ant

Ant — Mon, 15 Feb 2010 17:56:40 +0000

Thats a good approach for searching, sure beats downloading the logs. I added your comment as part of tail, thanks!

By: musk

musk — Mon, 15 Feb 2010 12:09:29 +0000

You do not need tail use less +F or press Shift-F while in less and it will follow the currently choosen file if content is added.

Example: log.txt

less +F log.txt and you will have the same behaviour as when using tail -f log.txt except that you can use CTRL+C to drop out of follow mode and then use the search features available in less.

By: Ant

Ant — Mon, 15 Feb 2010 11:14:22 +0000

Ryan, I added your suggestion towards the end. Thanks for the tip!

By: Ryan Fox

Ryan Fox — Mon, 15 Feb 2010 10:45:42 +0000

The `–color=auto` (two dashes- the font doesn’t show that well) option adds colour to the output of some commands, like ls or grep.

In ls, the colours change depending on the file type, permissions, etc.

In grep, it will highlight the text that matched your regex.

By: Ant

Ant — Mon, 15 Feb 2010 09:52:24 +0000

Hi Silvery, I added “sed” after “concat”, seemed like the appropriate spot. Thanks for the suggestion!

By: silvery

silvery — Mon, 15 Feb 2010 09:23:37 +0000

sed -i ‘s/some_text/other_text/’ filename

replaces some_text with other_text in given file (one occurrence per line is replaced)