[SOLVED] Use of cmd=`basename $0` in shell scripting
Linux - GeneralThis Linux forum is for general Linux questions and discussion.
If it is Linux Related and doesn't seem to fit in any other forum then this is the place.
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
I have seen in many shell scripts, the variable used cmd=`basename $0`
What's use of this variable in a shell script? Is it necessory?
Though I've read one thread on the same, but that was not so informative.
So please give your expert opinions.
Thanks in advance!
Thanks for clearing that up, that explains why most of where I've seen basename used is in init scripts. They don't have file extensions and it may be necessary to call back to what service is being started/stopped.
As long as you use Bash you are right, no need for basename. But many scripts are written POSIX compliant, which doesn't nknow of that substitution features of Bash (and other shells). So if you aim at portability basename is the preferred solution.