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Advanced python tracing
Trace python statement execution and syscalls invoked during that simultaneously

To get you started!
Do it.

chmod - change file permissions of a file to be similar of another

list files recursively by size

How to sum lines with decimals in awk
Read all lines using decimal marker as point, then add all them up and outputs the result.

Rename files in batch

create ICO file with more than one image
requires imagemagick. -background transparent is of course optional.

online MAC address lookup

Stop long commands wrapping around and over-writing itself in the Bash shell
add the command either in /etc/profile or ~/.bash_profile so that this is available to your shell.

Copy the full path of a file to the clipboard (requires xclip or similar)
Handy for those times you need to paste a file path in an IDE or some other app. sudo apt-get install xclip Then, for convenience, alias xclip to 'xclip -selection c' so you can just do something like realpath . | xclip


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