Sponsored Content
Top Forums Shell Programming and Scripting Issue deleting all lines (having a specific string) in a file Post 302895057 by alister on Friday 28th of March 2014 10:50:03 AM
Old 03-28-2014
Quote:
Originally Posted by Pandee
Thanks Folks!!!

With the input you all gave I got it working with the below script :

Code:
while read line
       	do
	grep -v $line fileB.log > $TEMP_FILE
	cat /dev/null > fileB.log
	cat $TEMP_FILE > fileB.log
done <$fileA.log

That's massively inefficient. There's no need to invoke grep once per line.

If the lines in fileA.log are not regular expressions, use fixed string matching.

The first cat command it's pointless.

If there are slashes in your data, read will eat them. If there are trailing slashes, lines will be joined.

Regards,
Alister
This User Gave Thanks to alister For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Deleting specific lines in a file

I have a file which has some lines starting with a particular word. I would like to delete 5 lines before each such line containing that particular word. eg: line1 line2 line3 line4 line5 line6 "particular word"... I would like to delete line2-line6 and all such occurences in that... (4 Replies)
Discussion started by: ramu_1980
4 Replies

2. Shell Programming and Scripting

Deleting a line from a file based on one specific string instance?

Hello! I need to delete one line in a file which matches one very precise instance of a string only. When searching the forum I unfortunately only found a solution which would delete each line on which a particular string occurs. Let's assume I have a file composed of thousands of lines... (4 Replies)
Discussion started by: Black Sun
4 Replies

3. Shell Programming and Scripting

deleting specific lines in a file

I want to delete all lines from a file (orig_file) that contain the regex values (bad_inv_list) I tried a for each loop with sed but it isn't working for file in `cat bad_inv_list`; do sed '/$file/d' orig_file > pared_down_file.1 mv pared_down_file.1 orig_file done I've added... (2 Replies)
Discussion started by: verge
2 Replies

4. Shell Programming and Scripting

Deleting specific lines in a file

Hello, I have a file like this one: 03-07-2011 sunz02 message1 03-07-2011 sunz02 message2 03-07-2011 sunz02 message3 01-07-2011 sunz02 message1 01-07-2011 sunz02 message2 01-07-2011 sunz02 ... (1 Reply)
Discussion started by: asanchez
1 Replies

5. Shell Programming and Scripting

deleting specific lines in a file

Hello, I have a file like: 26-07-2011 sunz02 message1 26-07-2011 sunz02 message2 26-07-2011 sunz02 message3 15-07-2011 sunz02 message1 15-07-2011 sunz02 message2 15-07-2011 sunz02 message3... (5 Replies)
Discussion started by: asanchez
5 Replies

6. Shell Programming and Scripting

Deleting specific lines in a file

Hello, I have a file filled with dates, such as: 04-08-2011 message 04-08-2011 message 03-08-2011 message 01-08-2011 message 31-07-2011 message 24-07-2011 message 15-07-2011 message 13-12-2008 message 26-11-2007 message And I want to delete those lines whose date is older than 10... (5 Replies)
Discussion started by: asanchez
5 Replies

7. UNIX for Dummies Questions & Answers

Deleting lines that contain a specific string from a space delimited text file?

Hi, I have a space delimited text file that looks like the following: 250 rs10000056 0.04 0.0888 4 189321617 250 rs10000062 0.05 0.0435 4 5254744 250 rs10000064 0.02 0.2403 4 127809621 250 rs10000068 0.01 NA 250 rs1000007 0.00 0.9531 2 237752054 250 rs10000081 0.03 0.1400 4 17348363... (5 Replies)
Discussion started by: evelibertine
5 Replies

8. Shell Programming and Scripting

Deleting lines in a fixed length file where there is a word at specific location

I have a big file having 100 K lines. I have to read each line and see at 356 character position whethere there is a word "W" in it. If it is their then don't delete the line otherwise delete it. There are two lines as one Header and one trailer which should remain same. Can somebody... (5 Replies)
Discussion started by: mohit kanoongo
5 Replies

9. Shell Programming and Scripting

Help required deleting specific lines from file

Hi, I have a file with 20 columns of data and hundreds of lines of the same format. Here is an example line. The data repeats underneath with the same format. 15 1 4 GLY - 1 65 LYSH 23 N - 24 H - 634 O 0.188 157.552 487 48.70I have been sorting this data by hand but I was wondering if I... (3 Replies)
Discussion started by: livbaddeley
3 Replies

10. Shell Programming and Scripting

Deleting specific lines from text file via scripting

Hi, I'm trying to search for some number and from that line, i need to delete the 5th line exactly. Eg: Consider below as text file data: 10000 a b c d e . . . 10000 w q t (8 Replies)
Discussion started by: Gautham
8 Replies
uulog(1)						      General Commands Manual							  uulog(1)

NAME
uulog - Displays UUCP log files SYNOPSIS
/usr/lib/uucp/uulog -f system [-number] uulog uulog systems [-number] uulog -s system [-number] uulog -x [systems] The uulog command displays the contents of a log file of uucico or uuxqt activities. STANDARDS
Interfaces documented on this reference page conform to industry standards as follows: uulog: XCU5.0 Refer to the standards(5) reference page for more information about industry standards and associated tags. OPTIONS
[Tru64 UNIX] Performs a tail -f on the file transfer log for the specified system, displaying the end of the log file. Use the Interrupt key sequence to leave the file and return to the prompt. Prints information about copy requests involving the specific system. If no sys- tem is specified, information is displayed for all systems. Note: System name can contain only ASCII characters. [Tru64 UNIX] Displays the uuxqt log file for the specified systems. If no systems are specified, information is displayed for all systems. [Tru64 UNIX] Displays the last lines of the log file. The number of lines is determined by the number argument. (To display the lines, the uulog command issues a tail for the specified number of lines.) DESCRIPTION
Individual log files are created for each remote system with which the local system communicates using the uucp, uusend, uuto, or uux com- mands. Use the uulog command to display a summary of uucp, uusend, uuto, and uux command requests by a system or systems. All of these transac- tions are logged in files under the /usr/spool/uucp/.Log/ directory. The files are named daemon_name/system, where the daemon_name direc- tory is named for the daemon involved and the system file is named for the remote system the daemon is contacting. The uucp and uuto commands call the uucico daemon. The uucico activities are logged in the system file in the /usr/spool/uucp/.Log/uucico directory. The uux and uusend commands call the uuxqt daemon. The uuxqt activities are logged in the /usr/spool/uucp/.Log/uuxqt/system file. You can examine these individual log files by issuing the uulog command directly. However, you can also have these temporary log files appended to a primary log file that you can then examine. This is called compacting the log files and is handled by uudemon.cleanu, a shell script in /usr/lib/uucp. NOTES
The uulog utility is marked LEGACY in XCU Issue 5. EXAMPLES
To display the uucico log file for system hera, enter: uulog -s hera [Tru64 UNIX] To display the uuxqt log file, enter: uulog -x [Tru64 UNIX] To display the last forty lines of the file transfer log for system zeus, enter: uulog -f zeus -40 To display the uucico log file for systems pluto and venus, enter: uulog pluto venus [Tru64 UNIX] To display the uuxqt log file for systems pluto and venus, enter: uulog -x pluto venus FILES
Contains log files. Public directory. SEE ALSO
Commands: ct(1), cu(1), tail(1), tip(1), uucico(8), uucleanup(8), uucp(1), uuencode(1), uudecode(1), uuname(1), uupick(1), uusched(8), uusend(1), uustat(1), uuto(1), uux(1) Standards: standards(5) uulog(1)
All times are GMT -4. The time now is 09:48 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy