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Rsync files with spaces
Using the double dash before the source and target makes the command work fine with weird filenames.

Move cursor to end of line

Convert (almost) any video file into webm format for online html5 streaming

List the size (in human readable form) of all sub folders from the current location

Print a list of the 30 last modified mp3s sorted by last first

list files recursively by size

Remove git branches that do not have a remote tracking branch anymore

Get a list of IP Addresses that have failed to login via SSH
This command shows a sorted list of the IP addresses from which there have been authentication errors via SSH (possible script kiddies trying to gain access to your server), it eliminates duplicates so it's easier to read, but you can remove the "uniq" command at the end, or even do a "uniq -c" to have a count of how many times each IP address shows in the log (the path to the log may vary from system to system)

shell bash iterate number range with for loop

Rename all files in lower case


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