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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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Rename files in batch

Detect encoding of a text file
This command gives you the charset of a text file, which would be handy if you have no idea of the encoding.

copy audio file from playlist to a floder
copy some file from xx.m3u to target folder

Monitor RX/TX packets and any subsquent errors
www.fir3net.com

Show the 1000*1000 and 1024*1024 size of HDs on system

Create a new file

Find default gateway

Edit 2 or more files in vim using vim -d
Is this not the same

happened to find this not bad software to keep my files and folders safe! Even the free trial version has the fantastic functions to protect any private files from being seen by anyone except me. With it I can encrypt, hide or lock anything I want, amazin
I noticed some spammer posted an advertisement here for "not bad" encryption. Unfortunately, their software only runs under Microsoft Windows and fails to work from the commandline. My shell script improves upon those two aspects, with no loss in security, using the exact same "military-grade" encryption technology, which has the ultra-cool codename "ROT-13". For extra security, I recommend running ROT-13 twice.

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


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