Commands by knoppix5 (65)

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commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

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Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

Search some text from all files inside a directory

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Extract icons from windows exe/dll
wrestool can be found in icoutils (http://www.nongnu.org/icoutils)

list all files in a directory, sorted in reverse order by modification time, use file descriptors.
It's both silly, and infinitely useful. Especially useful in logfile directories where you want to know what file is being updated while troubleshooting.

Download a file and uncompress it while it downloads
This will uncompress the file while it's being downloaded which makes it much faster

Remove empty directories
You can also use, $ find . -depth -type d -exec rmdir {} \; 2>/dev/null

Convert files from DOS line endings to UNIX line endings
This method will also convert mac line endings.

Greets the user appropriately

search for text in files. recursive.
recursively search dir for a a particular file type, search each file for a particular text.


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