Commands by chars19

Commands by chars19 (2)

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Calculate pi with specific scale

a() function in bc is for arctangent, available if using -l option included. Show Sample Output
This is sample output - yours may be different.
```
3.1415926532
```
1

echo 'scale=10; 4*a(1)' | bc -l

chars19 · 2012-10-08 15:03:07 3
Capture screen with timer
This is sample output - yours may be different.
0

sleep 3;import -window root output.png

chars19 · 2012-07-24 15:33:06 0

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leave a stale ssh session

When your ssh session hanged (probably due to some network issues) you can "kill" it by hitting those 3 keys instead of closing the entire terminal.

send a file or directory via ssh compressing with lzma for low trafic

Git diff last two commits

How about this one ?

Kill most recently created process.

Kills the most recently created firefox process.

Find usb device in realtime

Using this command you can track a moment when usb device was attached.

ubuntu tasksel

The command tasksel allows the choice of packages from the command line to get predefined configurations for specific services (usually this option is offered during installation).

Split a file one piece at a time, when using the split command isn't an option (not enough disk space)

bs = buffer size (basically defined the size of a "unit" used by count and skip) count = the number of buffers to copy (16m * 32 = 1/2 gig) skip = (32 * 2) we are grabbing piece 3...which means 2 have already been written so skip (2 * count) i will edit this later if i can to make this all more understandable

Get current Xorg resolution via xrandr

Not sure if it works the same on any shell.

The BOFH Excuse Server

Get all IPs via ifconfig

The initial version of this command also outputted extra empty lines, so it went like this: 192.168.166.48 127.0.0.1 This happened on Ubuntu, i haven't tested on anything else.

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