Just deleted tons of stale, unsused user accounts. Here are some KSH shell basics and special shell variable. I need to Google them up myself to get reminded that ‘$?’ is the output variable for script execution. That is, it’s 0 for successful execution and 1 if there is any error.
Tag: shell script
Check out this article about KSH Script Basics | Special Shell Variables. Please tell me what you think about it. You can contact me anytime!
Check out this article about Looping Through a List of Arguments (bourne). Please tell me what you think about it. You can contact me anytime!
The Bourne shell for loop looks like this:
for arg in list do ...Handle $arg... done
Real life application.. 
# ls -l | awk ‘{print$9}’
user01
user02
user03
user04
user05
user06
user07
user08
user09
# pwd
/home
# for x in `ls -l | awk ‘{print$9}’`
> do
> chown $x $x
> done
# ls -aslt
total 136
.. yeah you know what the output is..