Replace string in multiple files from AIX command line

[new2unix]

Hi,

I have multiple files such as the following:

File1-M.txt
File2-M.txt
File3-M.txt
...
etc

In each file, there may be lines containing the following text:

data1 = tables/text1
data2 = tables/text2
data3 = /text3

Instead of using vi or other text editor to open each file and manually add "/usr/" to all the "tables/" string, is there a way from the AIX command line to basically go through each file, looking for the string, "tables/" and replace the string with "/usr/tables/"?

Thanks

Mike

 

[dickiebird]

Yep - Sed'll do it
for filex in File*M.txt
do
sed 's/tables\//\/usr\/tables\//g' > tempfile
mv tempfile $filex
done

HTH ((;-))) Dickie Bird
Honi soit qui mal y pense

 

[jamisar]

i agree dickiebird
but be prudent ...
(a bad writted) sed writes empty files
before
mv tempfile $filex
put an:
[ -s tempfile ] || continue -----------
when they don't ask you anymore, where they are come from, and they don't tell you anymore, where they go ... you'r getting older !

 

[new2unix]

Thanks, Dickiebird. I will give it a try from the command line.

Jamisar, I am not sure about the [ -s tempfile ] || continue syntax. Can you elaborate?

Thanks again,

Mike

 

[vgersh99]

well... you've forgottento specify 'filex' for your sed solution.

sed 's/tables\//\/usr\/tables\//g' ${filex} > tempfile

If you want to di it in-place, here's the "ex" solution:

for filex in File*M.txt
do
ex - ${filex} <<EOF
%s/tables\//\/usr\/tables\//g
wq!
EOF
done vlad
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