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Connect to TCP port 5000, transfer data and close connexion.
With no '-q 0' switch, nc simply waits, and whatever awaits the data hangs.

Batch file name renaming (copying or moving) w/ glob matching.

peak amount of memory occupied by any process with "FOO" in its name
Show the maximum amount of memory that was needed by a process at any time. My use case: Having a long-running computation job on $BIG_COMPUTER and judging whether it will also run on $SMALL_COMPUTER.   http://man7.org/linux/man-pages/man5/proc.5.html VmHWM: Peak resident set size ("high water mark")

Download all images on a 4chan thread

Compute the average number of KB per file for each dir
Shorter version using --tag

Get Nyan'd
Get nyan'd

download and unpack tarball without leaving it sitting on your hard drive

Convert all old SVN repositories in one directory to new format

Convert video files to XviD

Write comments to your history.
A null operation with the name 'comment', allowing comments to be written to HISTFILE. Prepending '#' to a command will *not* write the command to the history file, although it will be available for the current session, thus '#' is not useful for keeping track of comments past the current session.


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