07-29-2014
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
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
2. Shell Programming and Scripting
I have three prodcution box
Prod1
Prod2
Prod3
I want to write a script which tail the log for each production box
and put it into some file which I have want to tail
For example
Prod1
-----
TIMER IXN=MEMPUT, USR=GGu1, elapsed = 0.176 seconds.
11:41:44 AUDIT MEMPUT: member... (4 Replies)
Discussion started by: mr_harish80
4 Replies
3. Shell Programming and Scripting
Hi guys...
What am I doing wrong?
#!/bin/sh
LINES=1
FILE=test.log
TAIL="/usr/bin/tail -n"
$TAIL -${LINES} ${FILE}
Error:
./tail.sh
usage: tail ]
tail ]
---------- Post updated at 08:41 AM ---------- Previous update was at 08:32 AM ----------
please ignore this... (3 Replies)
Discussion started by: jazzaddict
3 Replies
4. Shell Programming and Scripting
I have file that is being constantly written to
example: file.txt
ABC
EBC
ZZZ
ABC
I am trying to create a simple script that will tail this file and at the same time using tr to change B to F on lines containing 'B'.
I tried this and it doesn't seem to work.
#!/bin/bash
tail -f... (8 Replies)
Discussion started by: zerofire123
8 Replies
5. Shell Programming and Scripting
Hello all,
I am trying to do a tail in a script. But when I quit the tail my script quits also. This is not what I want. I am struggling to get this done.
#!/bin/bash
askFile() {
echo -n "Enter file: "
read FILE
}
doTail() {
tail -F "${1}"
}
askFile
doTail... (4 Replies)
Discussion started by: markdark
4 Replies
6. Shell Programming and Scripting
Hi
I have written a script .The script runs properly if i write sql queries .But if i use PLSQL commands of BEGIN if end if , end ,then on running the script the comamds are getting printed on the prompt .
Ex :temp.sql
After connecting to the databse at the sql prompt i type... (1 Reply)
Discussion started by: isha_1
1 Replies
7. Shell Programming and Scripting
Hi everyone, I'm trying to write a script to format a file using unix2dos. I want to output all but the first 14 lines in a file. Then I want to pipe this to unix2dos to convert the output to a file that's easily readable on windows. Here's what I have:
export Lines=`wc -l < $1`
export... (11 Replies)
Discussion started by: LuminalZero
11 Replies
8. Shell Programming and Scripting
my unix machine is currently shared by many teams, because of that lots of processess are running and bad part is taht when I do psu ...i can see all tail processes as well , meaning ppl who have viewed files with tail and have forgotten to close it.
command prompt >> psu
tail -n 0 -f... (2 Replies)
Discussion started by: mitsyjohn
2 Replies
9. Shell Programming and Scripting
Hi Guys,
I would like to create a script which tails the content of a log file in real time, looks for a specific string , like "ERROR" and captures in a text file the previous 10.000 lines that were existing before this string.
Any help is appreciated. (12 Replies)
Discussion started by: liviusbr
12 Replies
10. Shell Programming and Scripting
I have 250 files that have 16 columns each - all numbered as follows stat.1000, stat.1001, stat.1002, stat.1003....stat.1250.
I would like to join all 250 of them together tail by tail as follows. For example
stat.1000
a b c
d e f
stat.1001
g h i
j k l
So that my output... (2 Replies)
Discussion started by: kayak
2 Replies
TAIL(1) FSF TAIL(1)
NAME
tail - output the last part of files
SYNOPSIS
tail [OPTION]... [FILE]...
DESCRIPTION
Print the last 10 lines of each FILE to standard output. With more than one FILE, precede each with a header giving the file name. With
no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short options too.
--retry
keep trying to open a file even if it is inaccessible when tail starts or if it becomes inaccessible later -- useful only with -f
-c, --bytes=N
output the last N bytes
-f, --follow[={name|descriptor}]
output appended data as the file grows; -f, --follow, and --follow=descriptor are equivalent
-F same as --follow=name --retry
-n, --lines=N
output the last N lines, instead of the last 10
--max-unchanged-stats=N
with --follow=name, reopen a FILE which has not changed size after N (default 5) iterations to see if it has been unlinked or
renamed (this is the usual case of rotated log files)
--pid=PID
with -f, terminate after process ID, PID dies
-q, --quiet, --silent
never output headers giving file names
-s, --sleep-interval=S
with -f, sleep for approximately S seconds (default 1.0) between iterations.
-v, --verbose
always output headers giving file names
--help display this help and exit
--version
output version information and exit
If the first character of N (the number of bytes or lines) is a `+', print beginning with the Nth item from the start of each file, other-
wise, print the last N items in the file. N may have a multiplier suffix: b for 512, k for 1024, m for 1048576 (1 Meg).
With --follow (-f), tail defaults to following the file descriptor, which means that even if a tail'ed file is renamed, tail will continue
to track its end. This default behavior is not desirable when you really want to track the actual name of the file, not the file descrip-
tor (e.g., log rotation). Use --follow=name in that case. That causes tail to track the named file by reopening it periodically to see if
it has been removed and recreated by some other program.
AUTHOR
Written by Paul Rubin, David MacKenzie, Ian Lance Taylor, and Jim Meyering.
REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>.
COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
SEE ALSO
The full documentation for tail is maintained as a Texinfo manual. If the info and tail programs are properly installed at your site, the
command
info tail
should give you access to the complete manual.
tail (coreutils) 4.5.3 February 2003 TAIL(1)