Commands by wildtype (1)

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check open ports without netstat or lsof

show how many regex you use in your vim today
i want to count how many regex code i have used in vim in a long time so i make a directory in svn host and post record to this directory of course i dont want to post manually so i worte a script to do that and this is the core thing to do

Emulate tail using awk.
This awk codes emulates tail. For efficiency it uses a circular array, which stores only N number of records. Using awk gives the flexibility of modifying the output as needed, for example adding the record number (NR) at the output and much more.

vi show line numbers
you don't have to spell out numbers, you can just use nu

Change files case, without modify directories, recursively
Change files case, without modify directories, recursively. ... fucking vfat

Calculate days on which Friday the 13th occurs (inspired from the work of the user justsomeguy)
Friday is the 5th day of the week, monday is the 1st. Output may be affected by locale.

A nice command for summarising repeated information

ring the bell

suspend to ram without root
$dbus-send --system --print-reply --dest="org.freedesktop.UPower" /org/freedesktop/UPower org.freedesktop.UPower.Suspend

Stripping ^M at end of each line for files
just deletes to rogue CR from dos files, and tr is always available.


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