How do I read a file field-by-field under UNIX / Linux / BSD Bash shell? My sample input data file is as follows:
device1,deviceType,major,minor,permissions
device2,deviceType,major,minor,permissions
…
….
..
deviceN,deviceTypeN,major,minor,permissions
For each line I need to construct and execute a shell command as follows:
/path/to/deviceMaker --context=$1 -m $permissions $device2 $deviceType $major $minor
How do convert tabs to spaces in a file using a bash shell?
I‘ve couple of shell aliases defined in ~/.bashrc file. How do I temporarily remove (disable) a shell alias and call the core command directly without using unalias command?
Can you explain me usage of nullglob variable under BASH? How do I check for any *.c files in any directory?
My development and testing webserver is used by over 100s of users. These users login from Windows XP, Linux, Mac OS X system via ssh. How do I set or automatically log users out after a period of inactivity under CentOS Linux server to improve server security and save some resources?
How do I redirect output and errors to /dev/null under bash / sh shell scripting? How do I redirect the output of stderr to stdout, and then redirect this combined output to /dev/null?
How do I clear DNS cache using BASH shell prompt under UNIX like operating systems?