Terminal - Revision history

sifo: /* Debian package management */

2012-08-10T02:08:01Z

Debian package management

← Older revision		Revision as of 02:08, 10 August 2012
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	~ $ dpkg -x nano_2.0.6_armel.deb /path/to/extraction/directory		~ $ dpkg -x nano_2.0.6_armel.deb /path/to/extraction/directory

-	To ~~extrack~~ the control file from the .deb file	+	To extract the control file from the .deb file
	~ $ dpkg-deb -e nano_2.0.6_armel.deb		~ $ dpkg-deb -e nano_2.0.6_armel.deb
	then you will find the control file named as "control" in "/home/user" if you used "sudo gainroot" to gain root access or in "/root" if you used "root" command to gain root access		then you will find the control file named as "control" in "/home/user" if you used "sudo gainroot" to gain root access or in "/root" if you used "root" command to gain root access

sifo: /* Show disk usage in megabytes */

2012-08-08T21:21:34Z

Show disk usage in megabytes

← Older revision		Revision as of 21:21, 8 August 2012
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	~ $ df -h		~ $ df -h
		+
		+	To show only rootfs partition
		+	~ $ df -h /

	=== Show a list of installed packages ===		=== Show a list of installed packages ===

sifo: /* Debian package management */

2012-08-08T21:19:29Z

Debian package management

← Older revision		Revision as of 21:19, 8 August 2012
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	To extract the .deb file for any reason		To extract the .deb file for any reason
	~ $ dpkg -x nano_2.0.6_armel.deb /path/to/extraction/directory		~ $ dpkg -x nano_2.0.6_armel.deb /path/to/extraction/directory
		+
		+	To extrack the control file from the .deb file
		+	~ $ dpkg-deb -e nano_2.0.6_armel.deb
		+	then you will find the control file named as "control" in "/home/user" if you used "sudo gainroot" to gain root access or in "/root" if you used "root" command to gain root access

	== Further reading ==		== Further reading ==

sifo: /* Debian package management */

2012-08-08T21:09:16Z

Debian package management

← Older revision		Revision as of 21:09, 8 August 2012
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	~ $ dpkg -i nano_2.0.6_armel.deb		~ $ dpkg -i nano_2.0.6_armel.deb
		+
		+	To extract the .deb file for any reason
		+	~ $ dpkg -x nano_2.0.6_armel.deb /path/to/extraction/directory

	== Further reading ==		== Further reading ==

joerg_rw: /* Basics */

2012-03-21T08:32:46Z

Basics: <TAB>

← Older revision		Revision as of 08:32, 21 March 2012
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	=== Basics ===		=== Basics ===
		+
		+	One of the most useful yet unknown to beginners: <TAB> completes anything at any moment, If there are ambiguities, <TAB> will complete only the unambiguous part. Two times <TAB> shows all alternatives when there are ambiguities.
		+
		+	Try <TAB><TAB> on an empty line to get a list of all commands that are "known" to the shell (will not find commands that are not in $PATH and so would need full pathname to invoke them)

	==== Basic commands ====		==== Basic commands ====

joerg_rw: /* Debian package management */ marked dangerous apt actions as deprecated

2012-03-21T08:02:59Z

Debian package management: marked dangerous apt actions as deprecated

← Older revision		Revision as of 08:02, 21 March 2012
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	apt-get update		apt-get update

-	Upgrade any installed apps with newer versions (the <code>-y</code> is optional and just avoids it prompting you as to whether or not to proceed):	+	<s>Upgrade any installed apps with newer versions (the <code>-y</code> is optional and just avoids it prompting you as to whether or not to proceed):
-	apt-get upgrade -y	+	apt-get upgrade -y </s> DEPRECATED!

	Remove any downloaded package archives. Once the package is installed the downloaded file is no longer needed. The Application Manager does this automatically but if you are using "apt-get" you'll have to do it manually:		Remove any downloaded package archives. Once the package is installed the downloaded file is no longer needed. The Application Manager does this automatically but if you are using "apt-get" you'll have to do it manually:
Line 340:		Line 340:
	apt-get autoclean		apt-get autoclean

-	Remove any packages which are no longer needed. These are applications/libraries which were automatically installed because of dependencies but are no longer required:	+	<s>Remove any packages which are no longer needed. These are applications/libraries which were automatically installed because of dependencies but are no longer required:
	apt-get autoremove		apt-get autoremove
		+	</s> DEPRECATED! May remove essential pkgs, see http://talk.maemo.org/showthread.php?t=70875

	Install any missing dependencies (which should fix the broken packages issue I had):		Install any missing dependencies (which should fix the broken packages issue I had):

joerg_rw: /* Using the terminal */ added warning not to nuke messybox

2012-03-21T07:57:34Z

Using the terminal: added warning not to nuke messybox

← Older revision		Revision as of 07:57, 21 March 2012
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	* install proper original tools to replace the crippled ones of busybox, when you already installed bash. Refer to e.g. [[User:Joerg_rw/tools]]		* install proper original tools to replace the crippled ones of busybox, when you already installed bash. Refer to e.g. [[User:Joerg_rw/tools]]

-	If you're reluctant to do all of the above (installing man package mandb-N900 is strongly recommended anyway), you may look up general linux cmdline help here: [http://ss64.com/bash Linux commands], and details about crippled busybox here: [http://www.busybox.net/downloads/BusyBox.html list of Busybox Linux commands and options for each one]. Man pages online you'll ~~fine~~ at [http://manpages.courier-mta.org/manpageindex.html], further links are listed at [http://tldp.org/manpages/man.html].	+	WARNING: You might feel like getting rid of supposedly useless busybox when you did the above suggested installation of bash and tools. ''DO NOT uninstall busybox'', it's needed for maemo bootup!
		+
		+	If you're reluctant to do all of the above (installing man package mandb-N900 is strongly recommended anyway), you may look up general linux cmdline help here: [http://ss64.com/bash Linux commands], and details about crippled busybox here: [http://www.busybox.net/downloads/BusyBox.html list of Busybox Linux commands and options for each one]. Man pages online you'll find at [http://manpages.courier-mta.org/manpageindex.html], further links are listed at [http://tldp.org/manpages/man.html].

	You find more links that give you easy as well as ambitious starts on linux shell here: [http://tldp.org/LDP/Bash-Beginners-Guide/html/sect_01_01.html Bash-Beginners-Guide] [http://tldp.org/LDP/abs/html/why-shell.html "Shell Programming!"] [http://tldp.org/LDP/Bash-Beginners-Guide/html/sect_01_01.html Common shell programs] [http://www.faqs.org/docs/bashman/bashref_toc.html#SEC_Contents Bash reference] [http://tldp.org/HOWTO/Bash-Prog-Intro-HOWTO.html BASH Programming - Introduction HOW-TO] and generally under http://tldp.org/		You find more links that give you easy as well as ambitious starts on linux shell here: [http://tldp.org/LDP/Bash-Beginners-Guide/html/sect_01_01.html Bash-Beginners-Guide] [http://tldp.org/LDP/abs/html/why-shell.html "Shell Programming!"] [http://tldp.org/LDP/Bash-Beginners-Guide/html/sect_01_01.html Common shell programs] [http://www.faqs.org/docs/bashman/bashref_toc.html#SEC_Contents Bash reference] [http://tldp.org/HOWTO/Bash-Prog-Intro-HOWTO.html BASH Programming - Introduction HOW-TO] and generally under http://tldp.org/

joerg_rw: /* Using the terminal */ some rewriting and adding links to tutorials

2012-03-21T07:50:05Z

Using the terminal: some rewriting and adding links to tutorials

← Older revision		Revision as of 07:50, 21 March 2012
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	'''Understand what a command does before you type it'''		'''Understand what a command does before you type it'''
-	Fundamentally you should understand what a command does before typing it in and pressing enter. If you have a linux desktop ~~distribution, like Ubuntu~~, you can normally type the command with the parameter <code>--help</code> to get a list of options, i.e. <code>ls --help</code>, or look up manual pages if installed, with:	+	Fundamentally you should understand what a command does before typing it in and pressing enter. If you have a linux installed on your desktop PC, there you can normally type the command with the parameter <code>--help</code> to get a list of options, i.e. <code>ls --help</code>, or look up manual pages if installed, with the most helpful linux command <code>man</code> for "manual", like:

	man ls [enter]		man ls [enter]

-	to find out what ~~the commands~~ are and ~~their~~ options. However ~~you can~~'t ~~do this~~ on the ~~tablets~~ though as the ~~tablets use cut down embedded commands~~, (~~BusyBox~~ - ~~I think?~~), so look at [http://ss64.com/bash Linux commands] or [http://www.busybox.net/downloads/BusyBox.html ~~Busybox~~ list of Linux commands and options for each one]	+	or
		+
		+	man man [enter]
		+
		+	to find out what a command does and what are and the options it allows.
		+
		+	However on maemo the default shell is busybox which has lots of commands like <code>ls</code> built in, and most of them are crippled in functionality so don't support a really helpful --help function. Also the <code>man</code> command is not available on standard maemo. So maemo NITs are basically a hostile environment for beginners to learn about linux.
		+
		+	There are ways to mitigate this:
		+	* install man. The pkg is available e.g. here:[http://maemo.org/packages/view/man-db-n900/] and also in your application manager when you got the extras-devel catalog enabled.
		+	* install bash (version 3 or 4), a proper fullsize shell though without many builtins. (http://maemo.org/packages/view/bash3/ http://maemo.org/packages/view/bash4/, again also in your application manager, from extras catalog.
		+	* install proper original tools to replace the crippled ones of busybox, when you already installed bash. Refer to e.g. [[User:Joerg_rw/tools]]
		+
		+	If you're reluctant to do all of the above (installing man package mandb-N900 is strongly recommended anyway), you may look up general linux cmdline help here: [http://ss64.com/bash Linux commands], and details about crippled busybox here: [http://www.busybox.net/downloads/BusyBox.html list of Busybox Linux commands and options for each one]. Man pages online you'll fine at [http://manpages.courier-mta.org/manpageindex.html], further links are listed at [http://tldp.org/manpages/man.html].
		+
		+	You find more links that give you easy as well as ambitious starts on linux shell here: [http://tldp.org/LDP/Bash-Beginners-Guide/html/sect_01_01.html Bash-Beginners-Guide] [http://tldp.org/LDP/abs/html/why-shell.html "Shell Programming!"] [http://tldp.org/LDP/Bash-Beginners-Guide/html/sect_01_01.html Common shell programs] [http://www.faqs.org/docs/bashman/bashref_toc.html#SEC_Contents Bash reference] [http://tldp.org/HOWTO/Bash-Prog-Intro-HOWTO.html BASH Programming - Introduction HOW-TO] and generally under http://tldp.org/

	=== Basics ===		=== Basics ===

joerg_rw: Undo revision 47016 by Devinwhite717 (Talk) this time it's me reverting it AGAIN for exactly same reason as Andre. Use discussion!!

2012-03-21T06:00:34Z

Undo revision 47016 by Devinwhite717 (Talk) this time it's me reverting it AGAIN for exactly same reason as Andre. Use discussion!!

← Older revision		Revision as of 06:00, 21 March 2012
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	man ls [enter]		man ls [enter]

-	to find out what the commands are and their options. However you can't do this on the tablets though as the tablets use cut down embedded commands, (BusyBox - I think?), so look at [http://~~commands~~.~~tips-linux.net~~ Linux commands] or [http://www.busybox.net/downloads/BusyBox.html Busybox list of Linux commands and options for each one]	+	to find out what the commands are and their options. However you can't do this on the tablets though as the tablets use cut down embedded commands, (BusyBox - I think?), so look at [http://ss64.com/bash Linux commands] or [http://www.busybox.net/downloads/BusyBox.html Busybox list of Linux commands and options for each one]

	=== Basics ===		=== Basics ===

devinwhite717: /* Using the terminal */

2012-03-20T19:48:31Z

Using the terminal

← Older revision		Revision as of 19:48, 20 March 2012
Line 32:		Line 32:
	man ls [enter]		man ls [enter]

-	to find out what the commands are and their options. However you can't do this on the tablets though as the tablets use cut down embedded commands, (BusyBox - I think?), so look at [http://~~ss64~~.~~com/bash~~ Linux commands] or [http://www.busybox.net/downloads/BusyBox.html Busybox list of Linux commands and options for each one]	+	to find out what the commands are and their options. However you can't do this on the tablets though as the tablets use cut down embedded commands, (BusyBox - I think?), so look at [http://commands.tips-linux.net Linux commands] or [http://www.busybox.net/downloads/BusyBox.html Busybox list of Linux commands and options for each one]

	=== Basics ===		=== Basics ===