LQWiki - User contributions [en]

Bc

2006-03-25T14:39:34Z

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'''bc''' is a language that supports arbitrary precision numbers with interactive execution of statements. There are some similarities in the syntax to the [[C]] programming language. A standard math [[library]] is available by [[command line]] option. If requested, the math library is defined before processing any files. bc starts by processing code from all the files listed on the command line in the order listed. After all files have been processed, bc reads from the [[standard input]]. All code is executed as it is read. (If a file contains a command to halt the processor, bc will never read from the standard input.)

== See also ==
* [[dc]]

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Ssh-keygen

2006-03-25T14:39:22Z

1143297781:

A tool to generate public-private key pairs for use with an [[ssh]] client. Key pairs for both [[RSA]] and [[DSA]] protocols are supported.

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Routing

2006-03-25T14:39:16Z

1143297781:

'''Routing''' generally refers to the passing of network communications from one network to another.

==See also==
*[[Router]]
*[[Ethernet]]
*[[LAN]]
*[[WAN]]
*[[network addressing]]

{{stub}}

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Duchs

2006-03-25T14:39:10Z

1143297781:

This command is non-standard but can be very useful the command originated from the O'Rielly book 101 linux server hacks.

it requires a working version of perl.

----
<tt><CODE><pre>
#!/bin/sh
ls --color=no . |perl -npe "s/ /\\ /g;s/\n/\0/g;" |
xargs -0 du -bcs -- |sort -rn |head $* |
perl -ne '($s, $i) = split(/[^\d]/, $_,2);if ($s<1024) {$a=$s;$u="b"} \
elsif (($s >=1024) && ($s < 1048576)) {$u="kb"; $a=$s/1024;} \
elsif (($s >=1048576) && ($s < 1073741824)) {$a=$s/1048576;$u="mb"}\
else {$a=$s/1073741824;$u="gb";}printf("%03.2f%s %s",$a,$u,$i);'
</pre></CODE></tt>
ED Note: you may need to remove the \'s at the ends of the lines and make it one line when saving to a file
----

The internals of the command itself are not very pretty, but it uses [[du]] to get the size of each directory in the current one, then uses the program [[sort]] to sort all of the entries and then runs the whole thing through head to print the top 9 directories, to print more simply run the command like this (also here is a sample output)

----
<tt><CODE><blockquote><pre>
ryan@ryan /tmp $ duchs -n 15
4.17gb total
1.95gb Halo_Combat_Evolved-FLT
626.68mb cdtemp
361.38mb Program Files
155.15mb SavageDemoInstaller-Linux.zip
145.67mb tmp
64.47mb mistlands
54.52mb Twisted-1.0.8alpha3
36.85mb mistdemo
34.27mb DX23ec.tmp
33.66mb galeon-1.3.8
29.22mb mistlands-tp1.linux.i386.tar.gz
22.64mb NVIDIA-Linux-x86-1.0-4496-pkg2
20.52mb thg10_athlon64_video.avi
19.78mb thg_video_10_athlon64.zip
</pre></blockquote></CODE></tt>
----

the options to it get passed immediately to the [[head]] command.

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Gslapt

2006-03-25T14:39:02Z

1143297781:

'''Gslapt''' is a GTK+ frontend to libslapt, the [[slapt-get]] library which provides advanced [[package management]] for [[Slackware]] and its derivatives. Inspired by the functionality present in [[Synaptic]], Gslapt aims to bring the ease of use enjoyed by [[Debian]] and its derivatives to the [[Slackware]] world.

Gslapt was written primarily to supersede the vlapt (x)dialog [[slapt-get]] frontend used by [[Vector Linux]].

==Distributions==

Besides [[Slackware]], Gslapt may be used with or included by the following distributions:

* [[Vector Linux]]
* [http://www.mutagenix.org Mutagenix]
* [[SLAX]]
* [http://www.slamd64.com/ Slamd64]
* [http://gsb.sourceforge.net/ Freerock GNOME]
* [http://www.gware.org/ GWARE GNOME]
* [http://slampp.abangadek.com/ SLAMPP]
* [http://getopenlab.com/ OpenLab GNU/Linux]
* [http://ocsid.spaghettilinux.org/ Open Community Slackware Install DVD]
* [http://floyd-linux.pappapc.com/ Floyd GNU/Linux]
* [http://www.stibs.cc/stx/ STX GNU/Linux]
* [http://www.nnlinux.com/ Nonux GNU/Linux]
* [http://wolvix.org/ Wolvix LiveCD]
* [http://www.goblinx.com.br/en/ GoblinX]
* [[College Linux]]

==External links==

*[http://software.jaos.org/#gslapt Homepage]

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Adduser

2006-03-25T14:38:59Z

1143297781:

adduser example:
<tt><CODE><pre>

adduser -c "First Middle Last" #add user " for text with spaces after -c
adduser -c "First Middle Last" -g server #adduser to group server
adduser -c "First Middle Last" -g server -G project #adduser to optional group project
adduser -c "First Middle Last" -g server -G project -s /bin/bash #set users shell
adduser -c "First Middle Last" -g server -G project -s /bin/bash fml #set login name

</pre></CODE></tt>

Now the question, how do you set up lots of these at the same time? See [[webmin]]

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