Reading a variable from file

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# 1  
Old 08-05-2009
Reading a variable from file


I have a situation where I need to read a variable from another file. But the problem is that the variable in the other file is starting with $.




. file1
echo "Print : $var1"

It works fine if the file1 is having var1=out (note that it is without $)
but the file will contain $ infront. Any thoughts?

# 2  
Old 08-06-2009
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Remove the $ in front of var1 in file1. Shell variables are defined without a $ in front of their name.
# 3  
Old 08-06-2009
Apologies, I will keep that in mind.

Coming to the solution. I know that if we remove the $ in front of var1 from file1 it will work, but the problem is that the file will have a $ in front of each variable. Please help how to deal in this case.

# 4  
Old 08-06-2009
Then remove it before you source it? Or generate the file1 without the leading $. What help do you need?
# 5  
Old 08-06-2009
I was wondering whether there is a way to ignore the $ after reading the file.
# 6  
Old 08-06-2009
eval `tr -d '$' < file1`
echo $var

# 7  
Old 08-06-2009
Thanks but it is not working if the file1 has something begining with square barcket.


---------- Post updated at 09:37 AM ---------- Previous update was at 08:42 AM ----------

I worked out by first selecting the records starting with $ and then using the code translate.


Last edited by shash; 08-06-2009 at 11:13 AM..
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