UNIX TUTORIALS - Unix - Getting Started
Unix - Getting Started
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System Shutdown:
| Command | Description |
|---|---|
| halt | Brings the system down immediately. |
| init 0 | Powers off the system using predefined scripts to synchronize and clean up the system prior to shutdown |
| init 6 | Reboots the system by shutting it down completely and then bringing it completely back up |
| poweroff | Shuts down the system by powering off. |
| reboot | Reboots the system. |
| shutdown | Shuts down the system. |
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Login Unix:
login:ADVERTISEMENTSTo log in:
login : amrood amrood's password: Last login: Sun Jun 14 09:32:32 2009 from 62.61.164.73 $
$ cal June 2009 Su Mo Tu We Th Fr Sa 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 $Change Password:
$ passwd Changing password for amrood (current) Unix password:****** New UNIX password:******* Retype new UNIX password:******* passwd: all authentication tokens updated successfully $Listing Directories and Files:
$ ls -l total 19621 drwxrwxr-x 2 amrood amrood 4096 Dec 25 09:59 uml -rw-rw-r-- 1 amrood amrood 5341 Dec 25 08:38 uml.jpg drwxr-xr-x 2 amrood amrood 4096 Feb 15 2006 univ drwxr-xr-x 2 root root 4096 Dec 9 2007 urlspedia -rw-r--r-- 1 root root 276480 Dec 9 2007 urlspedia.tar drwxr-xr-x 8 root root 4096 Nov 25 2007 usr -rwxr-xr-x 1 root root 3192 Nov 25 2007 webthumb.php -rw-rw-r-- 1 amrood amrood 20480 Nov 25 2007 webthumb.tar -rw-rw-r-- 1 amrood amrood 5654 Aug 9 2007 yourfile.mid -rw-rw-r-- 1 amrood amrood 166255 Aug 9 2007 yourfile.swf $Who Are You?
$ whoami amrood $Who is Logged In?
$ users amrood bablu qadir $ who amrood ttyp0 Oct 8 14:10 (limbo) bablu ttyp2 Oct 4 09:08 (calliope) qadir ttyp4 Oct 8 12:09 (dent) $