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Verbosely delete files matching specific name pattern, older than 15 days.

quickly rename a file

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

Get HTTP status code with curl AND print response on new line

Substitute an already running command
eg: Already running cmd $sleep 120 Substitution cmd $c=$(pgrep sleep) && sleep 5 && kill $c

gpg decrypt several files
Change directory (cd) to the directory where all your encrypted files are placed, and then run the command - then you are asked to insert your secret gpg password - ubuntu 8.04

Turns red the stderr output
Reference: http://stackoverflow.com/a/4455706

restoring some data from a corrupted text file
man tac When there is a bad block in the middle of your file, you can see its begninning with `cat' and its end with `tac'. But both commands terminates with an error. So this sequence rebuilds a new file without badblock.

Show top 50 running processes ordered by highest memory/cpu usage refreshing every 1s
http://alvinalexander.com/linux/unix-linux-process-memory-sort-ps-command-cpu for an overview of --sort available values

Lists all directories under the current dir excluding the .svn directory and its contents


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