Commands for the wicked (109)

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bash find function
basic find implementation for systems that don't actually have find, like an android console without busybox installed.

For a $FILE, extracts the path, filename, filename without extension and extension.
Useful for use in other scripts for renaming, testing for extensions, etc.

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

list files recursively by size

Syntax Highlight your Perl code
This uses Text::Highlight to output the specified Perl file with syntax highlighting. A better alternative is my App::perlhl - find it on the CPAN: http://p3rl.org/App::perlhl

How to estimate the storage size of all files not named *.[extension] on the current directory
With this sentence we can estimate the storage size of all files not named *.jpg on the current directory. The syntax is based on Linux, for Unix compliance use: find ./* -prune ! -name '*.jpg' -ls |awk '{TOTAL+=$7} END {print int(TOTAL/(1024^2))"MB"}' We can change the jpg extension for whatever extension what we need

Binary clock
Like 7171, but fixed typo, uses fewer variables, and even more cryptic!

Set laptop display brightness
Run as root. Path may vary depending on laptop model and video card (this was tested on an Acer laptop with ATI HD3200 video). $ cat /proc/acpi/video/VGA/LCD/brightness to discover the possible values for your display.

List your largest installed packages (on Debian/Ubuntu)
dpigs is in the package debian-goodies (debian/ubuntu)

Download all manuals RedHat 7 (CentOS/Fedora) with one command in Linux


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