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| [[Category:Techniques]]
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| [[Techniques]]: Software: Operating Systems: '''Linux'''
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| ==Articles==
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| *[[:Category:Linux Shell Commands|Linux Shell Commands]]
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| *Components:
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| **[[KDE]]
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| ***[[Konqueror]]
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| ==Reference Links==
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| *[http://wiki.linuxquestions.org/ LinuxQuestions wiki]
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| *[http://linux.ctyme.com/ Linux Manpages]: [[Linux:man|man]] documentation as searchable web pages
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| ==User/Security Admin==
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| *Commands:
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| **Users: [[useradd]], [[userdel]], [[usermod]]
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| **Groups: [[groupadd]], [[groupdel]], [[groupmod]]
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| *Links:
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| **[http://www.net-security.org/article.php?id=809 Securing Linux]
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| ==Hardware==
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| *[[Linux:Scanners|Scanners]]
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| *[[lspci]] - lists all PCI devices found
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| *[[dmesg]]|tail - somehow helps figure out what USB devices have been detected
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| *To '''mount an ISO image as a folder''' ''(untested)'':
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| [[mount]] -o loop NameOfISO.iso /mount/wherever
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| ==Issues==
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| The following may reflect [[User:Woozle|my]] own ignorance rather than an actual shortcoming in Linux:
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| *Development
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| **There appears to be no mechanism corresponding to [[ActiveX]] (as used for desktop app development)
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| **There appears to be no application corresponding to [[Microsoft Access]]. Yes, you can do all the same stuff with various available tools, but not quickly; v2.0 of [[OpenOffice]] is apparently going to include a tool which may be a step in the right direction...
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| *Regular Use
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| **In Windows, if you create a link to an executable script (batch file -- *.bat) on your desktop (or anywhere), the link is executable with a double-click. Under KDE (in [[Ubuntu]]), I can't figure out how to make it execute at all without using a terminal.
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| ==How To==
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| *'''Time Zone''': If the [[KDE]] Clock-setting widget seems to be refusing to set the time zone (or your system clock is refusing to show anything except GMT time), this command may work:
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| ln -s /usr/share/zoneinfo/America/NewYork /etc/localtime
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| ...where "/America/NewYork" should be replaced by the appropriate file for your time zone. I have not been able to find any documentation on this feature; the command was suggested to me by someone on the #kde forum at irc.freenode.net (see [http://freenode.net/]). Remember to use the console "date" command to verify what the system clock is currently set to. --[[User:Woozle|Woozle]] 08:45, 23 Apr 2005 (CST)
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| *To force an update of the system clock:
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| ntpdate pool.ntp.org
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| *'''Emptying the Trash''': KDE does have trash-management built in, but it's not made obvious. You can do any of the following:
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| **Navigate (in Konqueror) to "trash:/", then right-click on the panel showing the contents, and select "Empty trash".
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| **Right-click on the applet panel and add the Trash applet, then left-click on it to use its various functions.
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| **Create a new URL link on the desktop, give it the URL "trash:/", then right-click on it (my preferred solution). A trashcan icon is available in the "filesystems" icon group.
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| ===Running a remote X session===
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| To have a "window" into another computer -- sort of like VNC, but better:
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| * On the local machine (note the space before the ":"):
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| Xnest -ac :1
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| * On the remote machine (via [[ssh]] or equivalent):
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| export DISPLAY=''yourmachine'':1
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| ...where ''yourmachine'' is the name of your local machine. If you get messages indicating that it's having trouble connecting to ''yourmachine'', try using an IP address instead.
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| * You will then need to run the command to start a GUI session; kdestart starts [[KDE]]. Not sure what other commands might be available.
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| ==Things You Must Know==
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| In Linux, you often run into things which you Just Have To Know in order to make things work; there is not really any way to find them out. This is bad UI design, but for now it's the situation. I will be listing them here as I find them out.
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| * When Perl is missing a module, the package name is always (I am told) "perl-libraryname". For example, for Tk.pm, the package is perl-Tk. So in Fedora you would type "yum install perl-Tk". Presumably in debian-derived distributions, you would type "apt-get install perl-Tk", though I have not actually tested this. (Remember that package names, like Linux filenames, are case-sensitive, so that T must be uppercase or it won't work.) If the library is within a Perl package, e.g. Net::Telnet, then the format is perl-Package-Library, e.g. perl-Net-Telnet.
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| * To run a binary which is located in the current directory, from the command line, you have to type "./" before the binary's name. It's not clear why this is.
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