topic Re: How i can edit various files at same time? in Operating System - Linux

How i can edit various files at same time?

Francesco_13 — Fri, 23 Dec 2005 06:06:40 GMT

Hi,
i have in my HP-UX 39 files(aprox. 18 mb ) that i'm do it to edit for changing the string: /*+ RULE */ for a space.
How i can do it at the same time with a loop?

Thenks.
best regards.
Francesco

Re: How i can edit various files at same time?

Pete Randall — Fri, 23 Dec 2005 06:31:47 GMT

Something like:

for FILE in `cat file_list`
do
sed 's|/*+ RULE */||g'`
done

Pete

Re: How i can edit various files at same time?

Piergiacomo Perini — Fri, 23 Dec 2005 06:36:47 GMT

Hi Francesco and Pete,
you can use commands that Pete suggest but
better

for FILE in `cat file_list`
do
sed 's|/*+ RULE */||g'` $FILE
done

regards

Re: How i can edit various files at same time?

Piergiacomo Perini — Fri, 23 Dec 2005 06:52:08 GMT

Hi again Francesco,

you can try this (last version ;-))

for FILE in `cat file_list`
do
sed "s/\/\*+ RULE \*\///" $FILE > $FILE
done

(please test before use it because
sed statement result is redirect
on original file)

regards

Re: How i can edit various files at same time?

Pete Randall — Fri, 23 Dec 2005 06:54:47 GMT

Thanks, Piergiacomo, I forgot the $FILE part!

Pete

Re: How i can edit various files at same time?

Piergiacomo Perini — Fri, 23 Dec 2005 07:11:51 GMT

(no points, please)
No problem Pat, thank you for "begin the shell
script"!!!

Re: How i can edit various files at same time?

Simon Hargrave — Fri, 23 Dec 2005 07:54:59 GMT

Don't use sed with $FILE > $FILE you will blank all your files!

Either user $FILE > $FILE.tmp then mv $FILE.tmp to $FILE, or use ed: -

for FILE in *
do
ed $FILE <1,\$s/\/\*+ RULE \*\// /
w
q
EOF
done

Re: How i can edit various files at same time?

Piergiacomo Perini — Fri, 23 Dec 2005 08:47:42 GMT

(obviusly no points)
thanx Simon , it's my fault (don't test shell
script).

regards

Re: How i can edit various files at same time?

Rodney Hills — Fri, 23 Dec 2005 11:30:01 GMT

perl can do it in 1 line-

perl -p -i -e 's{/\*\+ RULE \*/}{ }g' *

This will edit each file in-place (-i option).

HTH

-- Rod Hills

Re: How i can edit various files at same time?

Francesco_13 — Mon, 26 Dec 2005 03:14:42 GMT

Hi,
thanks to all !