Mac OS X related tutorial/FAQ

How To Find the WiFi Password on Mac OS X

last updated July 27, 2015 in BASH Shell, Mac OS X, UNIX

I‘ve MBP 13″ laptop. How can I find out the Wifi password on Mac OS X using command line and GUI options?

Apple OS X: Install X Window System XQuartz For SSH X11 Forwarding On a Mavericks or Yosemite

last updated May 5, 2015 in Mac OS X, OpenBSD, Package Management, Troubleshooting, UNIX

I need to tunnel X Window securely over SSH bases session so that I run X program on my remote Linux/Unix server/workstation and get back display to my Apple Macbook pro laptop. I tried the ssh -X user@server1 and ssh -Y user@server2 commands on both OS X Mountain Lion and Apple OS X Mavericks/Yosemite. But, I am unable to use the ssh command with X11.

How do I fix this problem on OS X and enable X11 forwarding with ssh command? How do I install XQuartz (X11.app) server on Apple OS X Mountain Lion or Mavericks or Yosemite?

How to Run and Execute Command When I Log Out Of Linux Session?

last updated January 13, 2015 in BASH Shell, CentOS, Debian / Ubuntu, FreeBSD, Linux, Mac OS X, UNIX

I‘m using CentOS 7 server. I need to run a command when I logout using ssh or bash shell. So in Linux and Unix-like systems, how can I run a command to execute when I log out my session?

Unix / Linux: Initialize Dot Files Without Restarting The Current Shell Session

last updated January 11, 2015 in BASH Shell, FreeBSD, KSH Shell, Linux, Mac OS X, UNIX

I‘m a new Linux, OS X or Unix-like system users. I’m using bash shell. I made changes to my $HOME/.profile ($HOME/.bash_profile) file. How can I restart my session without doing logout and login again?

How To Extract a Tar Files To a Different Directory on a Linux/Unix-like Systems

last updated January 4, 2018 in CentOS, Debian / Ubuntu, FreeBSD, Linux, Mac OS X, RedHat and Friends, Suse, UNIX

I want to extract tar file to specific directory called /tmp/data. How can I extract a tar archive to a different directory using tar command on a Linux or Unix-like systems?

HowTo: Use ps, kill, nice, and killall To Manage processes in FreeBSD and OS X Unix Operating System

last updated December 31, 2014 in Commands, FreeBSD, FreeBSD Jails (VPS), Mac OS X, OpenBSD, UNIX

I‘m a new Unix system user. How can I manage process on a FreeBSD operating systems?

OS X: Create and use Live USB Fedora Linux Media

last updated June 3, 2014 in Fedora Linux, Mac OS X, RedHat and Friends, UNIX

My new Dell Laptop has no DVD or CD drive. I’m trying to create a bootable Fedora Linux 20 USB using UNetbootin utility as described here. But, UNetbootin failed to create bootable USB image on OS X. How do I create Fedora Linux 20 USB Media in Apple OS X using command line options?

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