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Rename files in batch

Display a block of text: multi-line grep with perl
-n reads input, line by line, in a loop sending to $_ Equivalent to while () { mycode } -e execute the following quoted string (i.e. do the following on the same line as the perl command) the elipses .. operator behaves like a range, remembering the state from line to line.

Cleanup Python bytecode files
This command will erase all bytecode versions of Python modules under the current directory.

Rename .JPG to .jpg recursively
This command is useful for renaming a clipart, pic gallery or your photo collection. It will only change the big caps to small ones (on the extension).

Erase empty files
The command find search commands with size zero and erase them.

Join lines
It's works only when you replace '\n' to ONE character.

Install pip with Proxy
Installs pip packages defining a proxy

Google Translate
allow multiword translations

Find the package that installed a command

Use acpi and notify-send to report current temperature every five minutes.
Use acpi and notify-send to report current temperature every five minutes. Works best in a shell script run at startup. acpi is called for temperature and fed to notify-send for a tooltip. After waiting five minutes, it will start over.


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