Commands by lkj (3)

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Null a file with sudo

Show all configured ipv4
Short list of all ip. Shows even the newly supported multiple ip address on the same interface (see eth1). For ipv6 use -6

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

Count the frequency of every word for a given file
Counts the frequency of words in a file

Find all file extension in current dir.

Show what PID is listening on port 80 on Linux

Convert video files to XviD

count how many times a string appears in a (source code) tree
grep -o puts each occurrence in a separate line

Place the argument of the most recent command on the shell
This works if your terminal is in Vi mode

Create a mirror of a local folder, on a remote server
Create a exact mirror of the local folder "/root/files", on remote server 'remote_server' using SSH command (listening on port 22) (all files & folders on destination server/folder will be deleted)


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