All commands

Create an image of "device" and send it to another machine through the network ("target" and "port" sets the ip and port the stream will be sent to), outputting a progress bar

On the machine that will receive, compress and store the file, use:

Optionally, add the -v4g switch at the end of the line in order to split the file every 4 gigabytes (or set another size: accepted suffixes are k, m and g).

The file will be compressed using 7z format, lzma2 algorithm, with maximum compression level and solid file activated.

The compression stage will be executed on the machine which will store the image. It was planned this way because the processor on that machine was faster, and being on a gigabit network, transfering the uncompressed image wasn't much of a problem.

Deletes lines to of a file. You must put the end line first in the range for the curly brace expansion, otherwise it will not work properly.

For example, to remove line 5 from foo, type: vi +5d +wq foo

Use sed to remove comments from a file.

In this example the comments begin with #.

The command '/^#/d' remove line starting with #.

The command 's/#.*$//' remove comments at end of lines.

Use sed to remove the last line of a file only if it is empty.

You can use only awk

You can push files to up to 32 servers at once assuming ssh keys are in place.

Great tool, it is part of the pssh suite.

Same game as #10096 . loop as many times as you like.

Instead of zeroing the filesystem, this command overwrites N times (default is 3) the disk content, making data recovery much harder.

The command accepts many more options

Need output in mbps (bits)

# ./bytes-second.sh eth0

eth0 interface maximum Speed: 1000Mb/s

RX:12883212 TX:17402002 B/s | RX:98 TX:132 Mb/s

RX:12371647 TX:17830111 B/s | RX:94 TX:136 Mb/s

RX:12502750 TX:17860915 B/s | RX:95 TX:136 Mb/s

If you don't have seq, you can use perl.

if you don't do --numeric-ports, netstat will try to resolve them to names

(follow with next command)

tail -f from.log | colorize.pl +l20:".*" &

Use with http://www.commandlinefu.com/commands/view/10031/intercept-monitor-and-manipulate-a-tcp-connection. - can use to view output of tees that send traffic to files - output will be interwoven with red for sent traffic and green for received.

Ever need to get some text that is a specific number of characters long? Use this function to easily generate it! Doesn't look pretty, but sure does work for testing purposes!

Works for multiple hosts (such as www.google.com) and/or wrong hosts.

Quick shortcut if you know the hostname and want to save yourself one step for looking up the IP address separately.

For a demo try

Actually

to switch to that workspace

Sample input:

Qt: 4.7.4

KDE Development Platform: 4.7.3 (4.7.3)

KIO Client: 2.0