>>>>> "Robert" == Robert Thorsby <[EMAIL PROTECTED]> writes:
Robert> On 2006.05.26 18:37 john hedge wrote:
>> I've been hitting my head all day over awk and sed (grep?)!
>>
>> My challenge is to search a directory of text files for a string
>> which I want to replace wherever it occurs with a new string and
>> save the file with the changes in the same original file name.
Robert> Try a loop using grep with the -q option to locate the files
Robert> with the requisite text then sed with the -i option to make
Robert> the change. Something like:
Robert> cd /path/to/directory/ for FILE in do if grep -q "text to be
Robert> replaced" "$FILE" then sed -i 's/text to be
Robert> replaced/replacement text/g' "$FILE" fi done
Alternatively, and more brute force, do:
for i in *
do
sed 's/string/repl/g' < $i > $i.backup && mv $i.backup $i
done
This of course assumes there are no files called x.backup in the
directory.
Or use ed:
for i in *
do
ed - $i <<\EOF
1,$s/str/repl/g
w
q
EOF
done
--
Dr Peter Chubb http://www.gelato.unsw.edu.au peterc AT gelato.unsw.edu.au
http://www.ertos.nicta.com.au ERTOS within National ICT Australia
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