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Old 04-02-2004, 11:19 AM   #1
delawhere
LQ Newbie
 
Registered: Feb 2004
Posts: 3

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An easy way of deleting lines from multipe files?


I have multiple files that contain email addresses. One per line. I would like to remove a patiular email address from each file but I'm not sure the quickest way to do this.

If I do
grep user@here.com *
I get
file1:user@here.com
file2:user@here.com
file9:user@here.com

and so on.

Is there a way to somehow remove the email address from the with grep or should I try some other command?

Thank you for any help or suggestions.
 
Old 04-02-2004, 11:39 AM   #2
paulsm4
LQ Guru
 
Registered: Mar 2004
Distribution: SusE 8.2
Posts: 5,863
Blog Entries: 1

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Hi -

Try this:

1. Type in the following shell script# Declare a temp file
<= EXAMPLE: "vi script1.sh":
TMP=/tmp/$$.tmp
ADDR=myaddress_remove

# Make sure we can write to it (we'd be sad if we couldn't...)
touch $TMP
if [ ! -w $TMP ]; then
echo "WARNING: Unable to write to $TMP"
ls -l $TMP
exit 1
fi

# OK: we're ready to remove the address "cow" using the tool "grep -v"
for i in file1 file2 file3; do
echo "Processing file $i..."
grep -v $ADDR $i > $TMP
mv $TMP $i
done

echo "Done."

2. Substitute your file names and the e-mail address you want to remove

3. Set the "execute" permissions on your script
<= EXAMPLE: "chmod +rw script1.sh"

4. Run it
<= EXAMPLE: ./script1.sh

Unfortunately, there's no one-line/1 command that I know if.

"hope that helps .. PSM
 
Old 04-02-2004, 11:58 AM   #3
delawhere
LQ Newbie
 
Registered: Feb 2004
Posts: 3

Original Poster
Rep: Reputation: 0
Thank you very much for your help!!
 
  


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