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Read parameter file for a shell script

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# 1  
Old 10-16-2013
Read parameter file for a shell script
Hi All,

I need urgent Help from all of you here.
Below is my code-
==================================================
Code:
#!/usr/bin/sh
cd $1
cat $2 | tr -ds "$" "" > parameter_file.param
export `parameter_file.param`
chmod 777 parameter_file.param
echo $1
echo $2
cd $prmDirInput
infile=$prmDirInput/$3
filecount=`wc -l $infile`
echo $filecount
echo $prmDirInput

================================================

I'm running this code by script-
Code:
./check_test.sh Parameter_file_path parameter_file FileName

When I'm running my script it is not taking values present in my parameter file. I don't know why it is doing this
can somebody plss help?
Last edited by Franklin52; 10-16-2013 at 11:27 AM.. Reason: Please use code tags for data and code samples
# 2  
Old 10-16-2013
Could you show us the contend of parameter_file ?
# 3  
Old 10-16-2013
Code:
$ cat dsquestnet.param
$prmDirInput=/dstage/questnet/qnetdv/input
$prmDirScripts=/dstage/questnet/qnetdv/scripts
$prmDirOutput=/dstage/questnet/qnetdv/output
$prmDirStage=/dstage/questnet/qnetdv/stage

Last edited by Franklin52; 10-16-2013 at 11:28 AM.. Reason: Code tags
# 4  
Old 10-16-2013
A file that contains environment variable should be loaded that way (in bash|ksh|sh):
<dot> <space> <filename>
where <filename> could be relative or absolute (specifying the full PATH)
Code:
. ./yourfile.env


in csh :
Code:
source ./yourfile.env


so instead of
Code:
export `parameter_file.param`


use
Code:
. ./parameter_file.param

By the way, setting chmod 777 on a file is NOT a good idea from a security point of view :
Here, that would allow any user to modify the parameters you load ...
Last edited by ctsgnb; 10-16-2013 at 05:56 AM..
# 5  
Old 10-16-2013
Let me know if I'm wrong??
As per your comment.. Instead on passing $1 and $2, I can read parameter file using

. /parameter_path/dsquestnet.param
# 6  
Old 10-16-2013
A short example is often better than a long story :

Code:
$ cat myenv
myvar=tst
anyvar=anyvalue
however=whatever
$ echo :$myvar:$anyvar:$however:
::::
$ . ./myenv
$ echo :$myvar:$anyvar:$however:
:tst:anyvalue:whatever:
$

---------- Post updated at 10:40 ---------- Previous update was at 10:37 ----------

Quote:
Originally Posted by Amit786
Let me know if I'm wrong??
As per your comment.. Instead on passing $1 and $2, I can read parameter file using

. /parameter_path/dsquestnet.param
That would suppose that your parameter file is correctly formatted (the '$' at the beginning of the lines should be removed)

What is your script supposed to achieve exactly ?
This User Gave Thanks to ctsgnb For This Post:
Amit786
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