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Multiple pattern find and delete line


 
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# 1  
Old 01-22-2014
Multiple pattern find and delete line

I have a file

Code:
# cat  /tmp/user_find.txt
/home/user/bad_link1
/home/user/www
/home/user/mail
/home/user/access_logs
/home/user/bad_link2

I need to delete lines where there are patterns /home/user/www, /home/user/mail and /home/user/access_logs. I used below method, but its throwing error

Code:
# sed -i "/\/home\/user\/access-logs/,/\/home\/user\/mail/,/\/home\/user\/www/ d" /tmp/user_find.txt
sed: -e expression #1, char 49: unknown command: `,'

# 2  
Old 01-22-2014
Code:
sed -i  "/\/home\/user\/access-logs/d;/\/home\/user\/mail/d;/\/home\/user\/www/d"  filename

This User Gave Thanks to pravin27 For This Post:
# 3  
Old 01-22-2014
How big your file is? You can use grep also.

Code:
$ cat t1
/home/user/bad_link1
/home/user/www
/home/user/mail
/home/user/access_logs
/home/user/bad_link2
$
$
$ cat t2
/home/user/www
/home/user/mail
/home/user/access_logs
$
$
$
$ fgrep -v -f t2 t1
/home/user/bad_link1
/home/user/bad_link2

# 4  
Old 01-22-2014
Code:
$ cat file_test 
/home/user/bad_link1
/home/user/www
/home/user/mail
/home/user/access_logs
/home/user/bad_link2

Code:
#!/bin/bash

# Input file
file="file_test"

# Input here whatever you want to delete space will be separator 
delete="/home/user/www /home/user/mail /home/user/access_logs"

delete=$(sed 's/\//\\\//g;s/ /\\|/g' <<<$delete)


sed '/'"$delete"'/d' $file

Resulting
Code:
/home/user/bad_link1
/home/user/bad_link2

if happy with result add -i
# 5  
Old 01-22-2014
Hello,

Here is an awk utility.

Code:
awk '/\/home\/user\/www/ || /\/home\/user\/mail/ || /\/home\/user\/access_logs/ {next} 1' file_name

Output will be as follows.

Code:
/home/user/bad_link1
/home/user/bad_link2


Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
# 6  
Old 01-22-2014
With those lines in the file this should be sufficient:
Code:
awk '!/www/ && !/mail/ && !/access_logs/' file

# 7  
Old 01-22-2014
Thank you all of you. Your solutions work very good Smilie

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