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Count all files in directories recursively with find
Counts the files present in the different directories recursively. One only has to change maxdepth to have further insight in the directory hierarchy. Found at unix.stackexchange.com: http://unix.stackexchange.com/questions/4105/how-do-i-count-all-the-files-recursively-through-directories

list block devices
Shows all block devices in a tree with descruptions of what they are.

Automatically skip bad songs in your MPD playlist.
Case insensitive. Also you can pull in the songs from a blacklist, one per line - while :; do (mpc current | grep -i -f blacklist.txt && mpc next); sleep 5; done

Check disk for bad sectors
Checks HDD for bad sectors, just like scandisk or chkdisk under some other operating system ;-).

Compare an archive with filesystem
and you quickly know the files you changed

Directory Tree

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

Find usb device
I often use it to find recently added ou removed device, or using find in /dev, or anything similar. Just run the command, plug the device, and wait to see him and only him

route add default gateway

Convert PDF to JPG
Without the bashisms and unnecessary sed dependency. Substitutions quoted so that filenames with whitespace will be handled correctly.


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