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How to apply a regular expression in all the files in a directory

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# 1  
Old 11-01-2009
How to apply a regular expression in all the files in a directory
I have say 100 text files (with .txt extension) in a directory.
An example of the content in the file is given below

"NAME"
"cgd1_200"
"cgd1_3210"
"cgd1_560"
"cgd2_2760"
"cgd2_290"
"cgd3_3210"
"cgd3_3310"
"cgd3_660"
"cgd5_2130"
"cgd5_4080"
"cgd6_3690"
"cgd6_4480"
"cgd8_1540"
"cgd8_3860

I wanted to remove the " " from the above file in all the lines.
I can apply regular expression to this file using the command %s/"//ig.
But I have to do it for each and every file.

How do i apply the above regular expression in awk or shell programming so that I do it to all the files in the directory at once.

Please let me know.

Please let me know.
# 2  
Old 11-01-2009
Code:
perl -i.bak -pe 's/"//g' *.txt

# 3  
Old 11-01-2009
Thank you
It worked
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