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mogra

03-15-2008 09:05 PM

Reg Makefile : Read file : for loop

I have following code in my

make file :

Code:

batch.txt:

        rm -f $@ ;

        for file in $(wildcard t*_diff.txt); do \

                        echo "$${file}        1        2        $${file}        0" >> $@ ; \

        done ;

My goal is to modify this code,

a) it should read in the file "ids.txt" : which will have all the different file ids, for each id in the file it should

do echo "$${file} 1 2 $${file} 0" >> $@ ; \

Making short instead of *.diff.txt now I want to read in the file which has all the ids. I don't know how read in file in Makefiles into array ..

Thanks a lot.

simplicissimus

03-16-2008 07:27 AM

using backticks in Makefile

My solution would go like this:

Code:

ABCFILE=`cat abcfile`

batch.txt:

        rm -f $@ ;

        for file in $(ABCFILE); do \

        echo "$${file}        1        2        $${file}        0" >> $@ ; \

        done ;

My input file named 'abcfile' simply contains the line 'a b c' where everything between whitespaces will become a token. The new 'batch.txt' output looks like this:

Code:

a        1        2        a        0

b        1        2        b        0

c        1        2        c        0

Is this what you wanted to achieve?

Hope this helps,
Regards,
SIMP

Linux Archive

mogra

03-16-2008 12:57 PM

Thanks

Thanks a lot.

The original Makefile is big, but yeap for this snippet of code thats what I wanted.

Thanks a lot.

-mogra

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