called Bombay with a new word Mumbai
cat file1.dat
city name is Bombay and country is INDIA.
To:
cat file1.dat
city name is Mumbai and country is INDIA.
for file in /tmp/a /tmp/c /tmp/b ; do
sed 's/Bombay/MUMBAI/g' ${file} > ${file}.new
done
Sunday, April 29, 2007
Search and replace Shell Script
Had to parse 100's of files in a loop and replace a word
called Bombay with a new word Mumbai
cat file1.dat
city name is Bombay and country is INDIA.
To:
cat file1.dat
city name is Mumbai and country is INDIA.
called Bombay with a new word Mumbai
cat file1.dat
city name is Bombay and country is INDIA.
To:
cat file1.dat
city name is Mumbai and country is INDIA.
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1 comment:
If you wanted to modify the files in place, you could have used ed instead of sed and done something like this:
ed -s /target/file [[EOF
g/Bombay/s/Bombay/Mumbai/g
w
q
EOF
You will have to replace the [[ with less-than less than. I couldn't find the correct syntax for this editor so it wouldn't interpret them as html.
The downside is that instead of making a modified copy of the file, you're editing the file directly.
I just published a scripting book and I talk about this technique in Chapter 25. It can be found at Amazon and other sites:
http://www.amazon.com/Shell-Script-Pearls-Ron-Peters/dp/0615141056
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