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Learn Linux: Help
What is the man? Let's see what it says itself: 1234$ man -f manman (1) - an interface to the on-line reference manualsman (7) - macros to format man pagesman (1p)
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Display repository list in comand-line on openSUSE
To display the repository list in command line you can use : 123456789101112131415161718zypper lr# | Alias | Name | Enabled | GPG Check | Ref
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How to know the graphic controller under Linux
To know your 3D graphic(s) controller(s) working (GPU or/and chipset) with your VGA output you can run the following command : 1/sbin/lspci | egrep 'VGA|3D' Example : 123/sbin/lspci | egrep
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Know status and health battery in command-line
To see your battery infos you can use acpi if you have it or directly see system files. Upower command# In both case you can use upower command to get some usefull infos: 1upower -i /org/freedesktop/U
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DISPLAYMANAGER and WINDOWSMANAGER
Change of Display Manager# Pass root 1sudo -i Then open /etc/sysconfig/displaymanager with a text editor. 1vim /etc/sysconfig/displaymanager Display Manager can be changed at line DISPLAYMANAGER="
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Reach the command line interface (text mode) at boot time
This work with Grub2: When you are on the bootloader, hover over your distribution name and press e (e for edit) You can now add options in the window that just opened On the line beginning with linu
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Variables type size and formaters in C
Variables# Type Size Min Max signed char 8 bits -128 +127 unsigned char 8 bits 0 +255 short 16 bits -32,768 +32,767 unsigned short 16 bits 0 +65,535 int 16 bits -32,768 +32,767 unsign