i have a scrip run in unix that need to use the tail -f command, as below:
but the problem that the tail -f will be stop and working in the background in then end of the day (23:59:59) that mean the time (start_${DATE}.out) is finished. and the time that the messages files are rotated (2:59:59)... so in the crontab i make it it run twice, one at 00:00 and second is 3:30 . at that case i will have many old tail -f processes run in the background and i need to kill them manually... so is there any way to make the tail -f keep running even a new file is created with new date and even the file messages are rotated?
Hi everyone,
I am in the process of trying to decide the correct way to solve a particular scripting/email issue I have and would appreciate any advice.
We have a cronjob running every 10 mins to check disk size on the server and if this exceeds a certain percentage then it will email a... (2 Replies)
Hi,
Test1.ksh
#! /bin/ksh
for i in $*
do
#echo "$i"
ksh test2.ksh $i &
done
test2.ksh
#! /bin/ksh
sleep 5s
echo "From Test 1 ==> $1"
exit 0;
I am executing as follows:
ksh test1.ksh a b c (10 Replies)
I have a script "a" running in background. From script "a" i will kick off script "b" which will also be in background. Is this possible. And actually what i want is, In script "b" when i do ps -ef, script "a" should not be seen.
Current "a" script
----
---
----
nohup b
exit
current... (1 Reply)
I have a user that runs a menu driven application, is there a way to see what scripts this application is executing in the back ground?
OS=AIX 4.3 (1 Reply)
Hello all,
I am trying to do a tail in a script. But when I quit the tail my script quits also. This is not what I want. I am struggling to get this done.
#!/bin/bash
askFile() {
echo -n "Enter file: "
read FILE
}
doTail() {
tail -F "${1}"
}
askFile
doTail... (4 Replies)
Hi all,
Im trying to do multiple things in one script..
firstly ...i am trying to call another script in one script...
secondly i am redirecting the output of second script in one file.
thirdly i am also using tail -f after the calling of 2nd script.
fourthly, all this is implemented in case... (6 Replies)
Hi friends,
i have two scripts(call it bg1.ksh and bg2.ksh) which needs to be run parallely on background from a script(call it test1.ksh).then i have to wait till these two back ground job gets finished. and once it is completed , then i have to trigger one more script(call it... (4 Replies)
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
LEARN ABOUT DEBIAN
plan9-tail
TAIL(1) General Commands Manual TAIL(1)NAME
tail - deliver the last part of a file
SYNOPSIS
tail [ +-number[lbc][rf] ] [ file ]
tail [ -fr ] [ -n nlines ] [ -c nbytes ] [ file ]
DESCRIPTION
Tail copies the named file to the standard output beginning at a designated place. If no file is named, the standard input is copied.
Copying begins at position +number measured from the beginning, or -number from the end of the input. Number is counted in lines, 1K
blocks or bytes, according to the appended flag or Default is -10l (ten ell).
The further flag causes tail to print lines from the end of the file in reverse order; (follow) causes tail, after printing to the end, to
keep watch and print further data as it appears.
The second syntax is that promulgated by POSIX, where the numbers rather than the options are signed.
EXAMPLES
tail file
Print the last 10 lines of a file.
tail +0f file
Print a file, and continue to watch data accumulate as it grows.
sed 10q file
Print the first 10 lines of a file.
SOURCE
/src/cmd/tail.c
BUGS
Tails relative to the end of the file are treasured up in a buffer, and thus are limited in length.
According to custom, option +number counts lines from 1, and counts blocks and bytes from 0.
Tail is ignorant of UTF.
TAIL(1)