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shell_script showing errors in the below mentioned script while executing in linux

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# 1  
Old 05-09-2012
shell_script showing errors in the below mentioned script while executing in linux
code:

Code:
IMAGE=$imgvalue;
 if [ $imgvalue :=1 ] 
then 
echo DO=ABC; 
elif [ $imgvalue :=2 ] 
then echo DO=ETC; 
elif [ $imgvalue :=3 ] 
then echo DO=XYZ; 
else 
echo "$imgvalue is unsupported"; 
exit 1; 
fi

in above script IMAGE=1 , IMAGE=2, IMAGE=3 whatever may be the value i have assigned it's showing only DO=ABC other conditions not working . any one pls check.
Last edited by Scrutinizer; 05-09-2012 at 03:45 AM.. Reason: code tags
# 2  
Old 05-09-2012
try this.
Code:
 
 
IMAGE=$imgvalue;
if [ "$imgvalue" -eq "1" ] 
then 
 echo DO=ABC; 
elif [ "$imgvalue" -eq "2" ] 
then 
 echo DO=ETC; 
elif [ "$imgvalue" -eq "3" ] 
then 
 echo DO=XYZ; 
else 
 echo "$imgvalue is unsupported"; 
 exit 1; 
fi

use [code] tag

https://www.unix.com/how-post-unix-li...code-tags.html
# 3  
Old 05-09-2012
Try:
Code:
case $imgvalue in
  1) echo DO=ABC;;
  2) echo DO=ETC;; 
  3) echo DO=XYZ;;
  *) echo "$imgvalue is unsupported" 
     exit 1
esac

# 4  
Old 05-09-2012
i have tried all possibilities and solutions mentioned above . it's not working .

can any one help the make script coding with the above requirement.only in below senario it's working and displaying DO=ABC for all inputs like IMAGE=1 or IMAGE=2 or IMAGE=3

Code:
IMAGE=$imgvalue;
if  [ $imgvalue =:1 ]
then
echo DO=ABC;
elif [ $imgvalue =:2 ]
then
echo DO=ETC;
elif [ $imgvalue =:3 ]
then
echo DO=XYZ;
else
    echo "$imgvalue is unsupported";
    exit 1; 
fi

# 5  
Old 05-09-2012
Quote:
Originally Posted by saku
i have tried all possibilities and solutions mentioned above . it's not working .
Hi,

I have tried the *two* solutions posted above and they both work. So can you be more specific about how it is not working.

If you are getting errors then post them.
# 6  
Old 05-09-2012
Quote:
Originally Posted by saku
i have tried all possibilities and solutions mentioned above . it's not working .

can any one help the make script coding with the above requirement.only in below senario it's working and displaying DO=ABC for all inputs like IMAGE=1 or IMAGE=2 or IMAGE=3

Code:
IMAGE=$imgvalue;
if  [ $imgvalue =:1 ]
then
echo DO=ABC;
elif [ $imgvalue =:2 ]
then
echo DO=ETC;
elif [ $imgvalue =:3 ]
then
echo DO=XYZ;
else
    echo "$imgvalue is unsupported";
    exit 1; 
fi

what is the problem?
Code:
imgvalue=$1
 if [ $imgvalue = 1 ]
then
echo DO=ABC
elif [ $imgvalue = 2 ]
then echo DO=ETC
elif [ $imgvalue = 3 ]
then echo DO=XYZ
else
echo "$imgvalue is unsupported"
exit 1
fi

Code:
# ./script 1
DO=ABC
# ./script 2
DO=ETC
# ./script 3
DO=XYZ
# ./script 4
4 is unsupported

# 7  
Old 05-09-2012
Hi,

cmd i am executing in linux:
and make is the file which having these changes.

$./make rel sapqe1 IMAGE=2
DO=ABC
$./make rel sapqe1 IMAGE=1
DO=ABC
$./make rel sapqe1 IMAGE=3
DO=ABC
$./make rel sapqe1 IMAGE=5
is unsupported

the problem is for every input of image only output i am getting DO=ABC

Code:
IMAGE=$imgvalue;
if  [ $imgvalue =:1 ]
then
echo DO=ABC;
elif [ $imgvalue =:2 ]
then
echo DO=ETC;
elif [ $imgvalue =:3 ]
then
echo DO=XYZ;
else
    echo "$imgvalue is unsupported";
    exit 1; 
fi


i am getting below error if i use if [ "$imgvalue" -eq "1" ] or if [ "$imgvalue" -eq "1" ]

error :
[: =: unary operator expected
Last edited by saku; 05-09-2012 at 05:33 AM.. Reason: want to edit the error
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