This command will use the fdisk utility to find all block devices on your system, and overwrite them with data from the /dev/urandom non-blocking random number generator.

CAUTION: This will irrevocably erase EVERY SINGLE physical block storage device visible to the fdisk utility, including plugged USB devices, RAID sets, LVM, etc.

Using "wmic get * /value" within any Cygwin shell will return lots of Win/Dos newline junk ie "^M$" at the end of found value line, two lines ("$" Unix newline) above, and three below. This makes storing and or evaluating wmic queries as variables a pain. The method i suggest strips the mentioned junk, only returns the value after "OSArchitecture=", and includes only one Unix style newline. Other methods using sed|awk|cut can only handle the output of wmic cleanly when piped or using multiple sed statements.

making

a much cleaner and slightly less costly alternative.

Typing a word in terminal is easier than digging your phone out, opening your two-factor authentication app and typing the code in manually.

This alias copies the one-time code to your clipboard for 3 seconds (long enough to paste it into a web form), then restores whatever was on the clipboard beforehand.

This command works on Mac. Replace pbpaste/pbcopy with your distribution's versions.

- recompresses all gz files to bz2 files from this point and below in the directory tree

- output shows the size of the original file, and the size of the new file. Useful.

- conceptually easier to understand than playing tricks with awk and sed.

- don't like output? Use the following line:

Compress files or a directory to xz format. XZ has superior and faster compression than bzip2 in most cases. XZ is superior to 7zip format because it can save file permissions and other metadata data.

xargs will automatically determine how namy args are too many and only pass a reasonable number of them at a time. In the example, 500,002 file names were split across 26 instantiations of the command "echo".

List the busiest scripts/files running on a cPanel server with domain showing (column $12).

IP addresses and number of connections connected to port 80.

Easiest way to obtain the busiest website list (sorted by number of process running).

Many circumstances call for creating variable of a summary result while still printing the original pipe. Inserting "tee >(cat >&2)" allows the command output to still be printed while permitting the same output to be processed into a variable.

While the posted solution works, I'm a bit uneasy about the "%d" part. This would be hyper-correct approach:

Oh, and you gotta pipe the result to sh if you want it to actually trim the files. ;)

Btw, this approach also removes false negatives (OP's command skips any deleted files with "txt" in their name).

Be careful, first run:

lsof | grep -i deleted | grep REG | grep -v txt

Then, give it the boot!

After updating to the latest ffmpeg with homebrew