Linux Issues - common questions for beginners
How do I get started using unix?
- Your TA will walk you through exercises using Unix to get started. Here's a few tutorials to get you started.
Unix help pages have been bookmarked for you in the computer labs.
- Google for Linux or Unix tutorials
- There's lots of free resources out there.
- If you need more help buy a
beginners Unix book.
I still need help...
- Here are some tips on finding help within Linux.
- Man Pages
- These are Help pages with Linux
- Type "man" then the command you need help with.
- This example will display all options associated with the "ls" command for listing contents of a directory:
My jobs are not running. What do I do? Here are some tips for finding out common problems:
Check your disk usage to find out if you have reached your quota.
- Use the "du" command which tells you how much space a file or directory
- The "-sk" switches will tell you the size of the directory in
Example: %du -sk
- Use the "ls" list directory command with the "-alt" switches to list all files and permissions.
Example: %ls -alt
Check to see what other processes you have running using the "ps" command:
Example: %ps -u (your_username)
Example: %ps -u username
Stop unused processes using the "kill" command. Look for the PID using the "ps" command.
Example: %kill (pid)
Example: %kill 29554
Look for a runaway process using the "top" command.
- This happens when a
process enters a never-ending loop or if it takes up too much CPU.
look under the CPU and USERNAME columns.
- If you have a process running
close to 99%, then you better kill it using the "kill" command.
How to I end a task?
- If you hit CNTRL-D, it just moves what you are working on into the background. It does not stop it.
How do I end a Unix session?
- Type "exit" at the command prompt.
You Tube video - Linux Terminal commands and navigation for Beginners - Part1
If you are a total beginner, watch this: