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Invoke a bash script with perl

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# 1  
Old 09-20-2010
Bug Invoke a bash script with perl
Hi all,

I use the perl script to invoke the bash script. and now there is a problem.

my bash script lists as follows:
Quote:
JDK=`/usr/bin/java -version &>/tmp/jdk.txt; cat /tmp/jdk.txt|sed -n '1p'|awk -F\" '{print $2}'|awk -F_ '{print $1}'`
if [ "$SERVER_TYPE" = "i386" ]; then
if [ "$JDK" = "1.5.0" ]; then
info "The version of java installed on the server (i386) is 1.5."
else
error "The version of java installed on the server is not 1.5."
TEST_PASSED=FALSE
fi
else
if [ "$JDK" = "1.6.0" ]; then
info "The version of java installed on the server (sparc) is 1.6."
else
error "The version of java installed on the server is not 1.5."
TEST_PASSED=FALSE
fi
fi
and I use perl run this test scripts
Quote:
qx($command)
now the problem is when I run the perl script I find there is nothing recorded in the file /tmp/jdk.txt
# 2  
Old 09-20-2010
qx invokes a system call -one of the exec family - to create a child process.

1. The default shell for this is /bin/sh. Is /bin/sh the same as bash on your system?

2. qx returns output
Code:
@myarray = qx($command)

What output do you get?

You need to check for errors
If you have more problems tell us what you get from answering #1 & #2
# 3  
Old 09-20-2010
1. The /bin/sh is not same as the bash (/bin/bash)
2. I also use an array to store the outcome and the output is null
because I save the information of 'java -version ' into a file named jdk.txt and now I found the file is empty. So it can not get the java version from that file. Meanwhile the value of the $JDK is null and there is no additional error information
At the same time, I can run that bash script individually and work properly and the java version 1.5
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