Commands by terceiro (1)

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Find the 20 biggest directories on the current filesystem
This command will tell you the 20 biggest directories starting from your working directory and skips directories on other filesystems. Useful for resolving disk space issues.

Count lines of source code excluding blank lines and comments
Much more accurate than other methods mentioned here straight out of the box.

multiline data block parse and CSV data extraction with perl
extract data in multiline blocks of data with perl pattern matching loop

Copy ssh keys to user@host to enable password-less ssh logins.
Same as original just no $ at start

cat stdout of multiple commands
Concatenate the stdout of multiple commands.

Detect illegal access to kernel space, potentially useful for Meltdown detection
Based on capsule8 agent examples, not rigorously tested

Create a 5 MB blank file via a seek hole
Similar to the original, but is much faster since it only needs to write the last byte as zero. A diff on testfile and testfile.seek will return that they are the same.

Multi line grep using sed and specifying open/close tags
This line does not include your closing tag in the output.

adjust laptop display hardware brightness [non root]

get colorful side-by-side diffs of files in svn with vim
This will diff your local version of the file with the latest version in svn. I put this in a shell function like so: $svd() { vimdiff


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