Solved

LOgical operator in ifeq

Posted on 2004-08-31
4
2,126 Views
Last Modified: 2013-12-26
How to use a Logical operators (AND,OR) in 'ifeq' statement?

-thanks
0
Comment
Question by:Thilak
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 21

Expert Comment

by:tfewster
ID: 11942638
if ( test -f a && test -f b )
then
 echo "Both files exist"
fi

if ( test -f a || test -f z )
then
  echo "One of the files exists"
fi

Or, for numerics:

if [[ 1 -eq 1 && 2 -eq 2 ]]^Jthen^Jecho "Both the same"^Jfi


if [[ 1 -eq 1 || 2 -eq 3 ]]^Jthen^Jecho "One matches"^Jfi

0
 
LVL 48

Expert Comment

by:Tintin
ID: 11947354
Do you mean in C source?
0
 
LVL 21

Accepted Solution

by:
tfewster earned 100 total points
ID: 11947535
Or if it's makefile syntax you mean:
http://www.gnu.org/software/make/manual/html_mono/make.html#SEC79

I can't see any examples there of logical operators to evaluate multiple conditions, so I guess you'd need multiple ifdef tests
0
 

Author Comment

by:Thilak
ID: 11949163
I need it for Makefile 'ifeq' statement.
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction: Ownerdraw of the grid button.  A singleton class implentation and usage. Continuing from the fifth article about sudoku.   Open the project in visual studio. Go to the class view – CGridButton should be visible as a class.  R…
In this post we will learn different types of Android Layout and some basics of an Android App.
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
Michael from AdRem Software explains how to view the most utilized and worst performing nodes in your network, by accessing the Top Charts view in NetCrunch network monitor (https://www.adremsoft.com/). Top Charts is a view in which you can set seve…

707 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question