Sponsored Content
Full Discussion: tail | grep
Top Forums Shell Programming and Scripting tail | grep Post 302279313 by manas_ranjan on Thursday 22nd of January 2009 11:21:42 AM
Old 01-22-2009
use
find with xarg and wc utility
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Help with tail /grep needed

Hello: I'm a very newbee at UNIX/AIX. What i want to do is to tail a file from the bottom until a certain string is found and write all the lines after the found string to another file. I've tried out a lot of combination with tail and grep but doesn't find the good one. Could someone help... (4 Replies)
Discussion started by: Felix2511
4 Replies

2. Shell Programming and Scripting

tail, grep and cut

Hello all, I have some weird problem that kinda baffles me. Say I have the following test file: claudia:~/tmp$ cat testfile.txt This is a test line This is the second test line And yeah, this is the third test line Then say I want to tail the file, grep for the word "third" then... (7 Replies)
Discussion started by: sylaan
7 Replies

3. Shell Programming and Scripting

tail | grep lagging badly

I'm trying to use tail/grep to monitor a log file. The command I cooked up is: tail -n 50 -f output.log | grep 'type:system' | cut -f 5- A sample line from the log file is: 1208894862 type:system session:0 severity:4 load started the columns are tab delimited. this works ok, except... (3 Replies)
Discussion started by: WasabiVengeance
3 Replies

4. Shell Programming and Scripting

Grep or Tail in shell script

Hi, I am writing a shell script that checks catalina logs on a production system and mails me if it detects errors. It greps the logs for known errors which i have defined as variables. The problem is the logs are huge, approx 30,000 before they rotate. So I am forced to use grep instead... (3 Replies)
Discussion started by: Moxy
3 Replies

5. UNIX for Dummies Questions & Answers

Need help with a tail and a grep

I need to tail -f a file so I can monitor it as it is being written to. However, there is a lot of garbage in the file that I don't care about. So normally I would just pipe and grep for the string that is important to me. However, in this case, there are two things I need to grep for. I can't... (3 Replies)
Discussion started by: Silver11
3 Replies

6. UNIX for Dummies Questions & Answers

mulitple grep using tail

I have a basic tail/grep question. I have logs that are generated & kept in a directory called alert_audit. I am using "tail" to see the logs that are coming in, but I only need logs that contain the IP address 10.249.185. or 10.247.231. Here is the command I have, but it pulls all IP... (3 Replies)
Discussion started by: robertson1995
3 Replies

7. UNIX for Dummies Questions & Answers

Write to file using tail -f through a pipe to grep

Hi -- I'm looking to write to a file after piping output from tail -f through to grep: #write to a file for all lines with "searchtext" within in error_log: Expand|Select|Wrap|Line Numbers tail -f /var/error_log | grep searchtext > output.txt The above command... (2 Replies)
Discussion started by: ndedhia1
2 Replies

8. Shell Programming and Scripting

How do i use tail & grep in real time here??

Hi I have a file which is updated very frequently. Where in i wanted to use tail -f command in the script and wanted to grep for a particular word. But the issue is when i use tail -f filename|grep "word" ... it will show me blank until the word is found in the real time. if it shows... (13 Replies)
Discussion started by: nikhil jain
13 Replies

9. UNIX for Dummies Questions & Answers

Tail -f | grep > output.txt

hi guys, I perform a sort of monitoring. I have a server running and with tail -f | grep "Searchstring"I monitor the log-file for recent specific entries. This is ok and works fine. Now, in addition I want to have my search results not posted into the shell but into a file. I tried: tail... (3 Replies)
Discussion started by: LaUs3r
3 Replies

10. Shell Programming and Scripting

Trouble with tail and grep

Good Morning, i ran into some trouble this morning while 'improving' my monitoring stuff. i would like to get a warning when the number of mails sent (outbound) by postfix is above a certain number. so far, so easy. to test that i simply put cat /var/log/mail.info | grep 'to=<' | grep -v -e... (1 Reply)
Discussion started by: Mike
1 Replies
NOHUP(1)						    BSD General Commands Manual 						  NOHUP(1)

NAME
nohup -- invoke a utility immune to hangups SYNOPSIS
nohup [--] utility [arguments] DESCRIPTION
The nohup utility invokes utility with its arguments and at this time sets the signal SIGHUP to be ignored. If the standard output is a ter- minal, the standard output is appended to the file nohup.out in the current directory. If standard error is a terminal, it is directed to the same place as the standard output. Some shells may provide a builtin nohup command which is similar or identical to this utility. Consult the builtin(1) manual page. ENVIRONMENT
The following variables are utilized by nohup: HOME If the output file nohup.out cannot be created in the current directory, the nohup utility uses the directory named by HOME to create the file. PATH Used to locate the requested utility if the name contains no '/' characters. DIAGNOSTICS
The nohup utility exits with one of the following values: 126 The utility was found, but could not be invoked. 127 The utility could not be found or an error occurred in nohup. Otherwise, the exit status of nohup will be that of utility. SEE ALSO
builtin(1), csh(1), signal(3) STANDARDS
The nohup utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible. BUGS
Two or more instances of nohup can append to the same file, which makes for a confusing output. BSD
July 19, 2001 BSD
All times are GMT -4. The time now is 06:50 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy