Commands by OmarKN (0)

  • bash: commands not found

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list files recursively by size

Listing directory content of a directory with a lot of entries
Ever wanted to get the directory content with 'ls' or 'find' and had to wait minutes until something was printed? Perl to the rescue. The one-liner above(redirected to a file) took less than five seconds to run in a directory with more man 2 million files. One can adapt it to e.g. delete files that match a certain pattern.

Adding Prefix to File name
Adding course name prefix to lecture pdfs

Get size of terminal
See the cols and lines and make sure the console it correctly configured for the screen size.

Get a shell with a not available account

Print out a man page
man -t manpagename gives a postscript version of said man page. You then pipe it to ls, and assuming you have cups set up, it prints in your default printer.

Insert the last argument of the previous command

See non printable caracters like tabulations, CRLF, LF line terminators ( colored )
For fancier and cleaner output, try the following snippet : $ showendlines(){ while read i; do od --address-radix=n --width=$(wc -c

Simulate typing
this also generates errors (change 4 to higher number for more mistakes)

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


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