parameter parsing from file

[hokky]

Hi guys,

I've got simple question, but I couldn't work it out atm.

I try to parse the value from source file here's the contain of source file

$ALGO_TOP/static/scripts/viewTradeLSno.ksh

And here's my script:

#file=`cat source`
#file=$ALGO_TOP/static/scripts/viewTradeLSno.ksh
echo $file

if [[ -f $file ]]
then
        echo "file is found"
else
        echo "file is not found"
fi

if I use the first "file" parameter is not working but
if I use the second "file" parameter is working

both actually has the same value

Any idea what should I do if I want the use the first parameter ?

 

[p5wizard]

cat-ing a file will not expand any variables you think are referenced in that file...

file=`cat source`

# in your case this is the same as
file='$ALGO_TOP/static/scripts/viewTradeLSno.ksh'

echo $file

if [[ -f $file ]]
then
        echo "file is found"
else
        echo "file is not found"
fi

you can get where you want to go with the eval subcommand

line=`cat $source`
eval file=$line

echo $file

if ...

HTH,

p5wizard