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Top Forums Shell Programming and Scripting Issue deleting all lines (having a specific string) in a file Post 302894863 by Pandee on Thursday 27th of March 2014 04:37:31 PM
Old 03-27-2014
Issue deleting all lines (having a specific string) in a file

I'm trying to create a script.

There are 2 files - fileA.log & fileB.log
fileA.log has the below data :
aaaa
cccc
eeee


fileB.log has the below data :
cjahdskjah aaaa xyz
jhaskjdhas bbbb abc
ajdhjkh cccc abc
cjahdskjah dddd xyz
jhaskjdhas eeee abc


I need to read each line from fileA.log, check fileB.log for that string and delete the line from fileB.log, if that string exists

Finally the file fileB.log should have the below data :

jhaskjdhas bbbb abc
cjahdskjah dddd xyz


Below is the script that I've used :

Code:
File_A=/tmp/fileA.log
File_B=/tmp/fileB.log
while read line
        do
        sed -i "/\b$FileA\b/d" $File_B
done <$File_A

But unfortunately, it is deleting all the lines.

Please let me know what's wrong with my script.
 

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DOVEADM-LOG(1)							      Dovecot							    DOVEADM-LOG(1)

NAME
doveadm-log - Locate, test or reopen Dovecot's log files SYNOPSIS
doveadm [-Dv] log errors [-s min_timestamp] doveadm [-Dv] log find [directory] doveadm [-Dv] log reopen doveadm [-Dv] log test DESCRIPTION
The doveadm log commands are used to locate and reopen the log files of dovecot(1). It's also possible to test the configured targets of the *log_path settings. OPTIONS
Global doveadm(1) options: -D Enables verbosity and debug messages. -v Enables verbosity, including progress counter. COMMANDS
log errors doveadm log errors [-s min_timestamp] The log errors command is used to show the last - up to 1,000 - errors and warnings. If no output is generated, no errors have occurred since the last start. -s min_timestamp An integer value, representing seconds since the epoch - also known as Unix timestamp. When a min_timestamp was given, doveadm(1) will only show errors occurred since that point in time. log find doveadm log find [directory] The log find command is used to show the location of the log files, to which dovecot(1) sends its log messages. If dovecot(1) logs its messages through syslogd(8) and doveadm(1) could not find any log files, you can specify the directory where your syslogd writes its log files. log reopen doveadm log reopen This command causes doveadm to reopen all log files, configured in the log_path, info_log_path and debug_log_path settings. These settings are configured in /etc/dovecot/conf.d/10-logging.conf. This is for example useful after manually rotating the log files. log test doveadm log test This command causes doveadm to write the message "This is Dovecot's priority log (timestamp)" to the configured log files. The used prior- ities are: debug, info, warning, error and fatal. EXAMPLE
This example shows how to locate the log files used by dovecot(1). doveadm log find Looking for log files from /var/log Debug: /var/log/dovecot.debug Info: /var/log/mail.log Warning: /var/log/mail.log Error: /var/log/mail.log Fatal: /var/log/mail.log REPORTING BUGS
Report bugs, including doveconf -n output, to the Dovecot Mailing List <dovecot@dovecot.org>. Information about reporting bugs is avail- able at: http://dovecot.org/bugreport.html SEE ALSO
doveadm(1) Dovecot v2.2 2013-11-24 DOVEADM-LOG(1)
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