pid=$(cat $MYLOCKFILE) if [ -z "$pid" ] ; then echo $$ > $MYLOCKFILE # ok to run
and this:
Code:
else echo ' this is a restart' echo $$ > $MYLOCKFILE # ok to run
I need some more explanation, would you? thanks
---------- Post updated at 06:32 AM ---------- Previous update was at 04:27 AM ----------
I understood them myself.
can I ask a general question?
Guys I always have a starting and kick off problem!! on how to start a script?!!! I have some skills to write the script but the kick-off is always a problem for me!!!
this really makes me sad!!!
Hi,
Would like to ask the experts if anyone knows how to run a script like this:
dtterm -title shell1
run process1 on shell1
dtterm -title shell2
run process2 on shell2
cheers!
p/s: sorry if i used the wrong forum, quite concussed after watching world cup for several nights; but I... (2 Replies)
In my cronjob, I would like to schedule my script.sh to run every minutes. I crontab -e and have in line below but it didn't seems to run at all.
* * * * * script.sh
When I run it manually, I can run it. Is that anything wrong with the above line?
If I change it to something like below,... (4 Replies)
I am looking to a solution to the following problem. I have a very large file that looks something like this:
Each group of three numbers on each line are three probabilities that sum to one.
I want to output the maximum for each group of three. So desired output would be:
or... (6 Replies)
how to run an already developed script run against a list of ip addresses solaris 8 question.
the script goes away and check traffic information, for example
check_GE-VLANStats-P3 1.1.1.1
and returns the results ok.
how do I run this against an ip list? i.e a list of 30 ip addresses (26 Replies)
Hi,
I have a script which has the below line:
ps -ef | grep ${SCRIPT_NAME} | grep ksh | grep -v grep >> /tmp/instance.tmp
When the script is invoked through CRON, I get 2 lines in instance.tmp when actually only one instance is running:
cdrd 17790 17789 0 15:14:01 ? 0:00 /bin/ksh... (8 Replies)
In bash shell, how we can avoid the commands getting recorded in history file.
One way i can think of is :
export HISTSIZE=0
Is there any other way to achieve this?
Thanks (1 Reply)
Hello all,
I'm trying to write a script to gather and send data and it works just fine at the bash command line, but when executing from CRON, it does not run properly.
My scripting skills are pretty limited and there's probably a better way, but as I said it works at the command line, but... (12 Replies)
Hi Team,
Am getting the below output but need the count of records to be displayed in same line but currently count alone moves to next line. Please let me know how we can still keep the count in the same line.
######code #####
while read YEAR; do
for i in TEST_*PGYR${YEAR}_${DT}.csv; do... (3 Replies)
Linux System having all Perl, Python, PHP (and Ruby) installed
From a Shell script, can call a Perl, Python, PHP (or Ruby ?) file
eg
eg
a Shell script run in a case statement call to run a php file, also Perl or/and Python file???
Like
#!/usr/bin/bash
....
....
case $INPUT_STRING... (1 Reply)
Discussion started by: hoyanet
1 Replies
LEARN ABOUT BSD
rc
RC(8) System Manager's Manual RC(8)NAME
rc - command script for auto-reboot and daemons
SYNOPSIS
/etc/rc
/etc/rc.local
DESCRIPTION
Rc is the command script which controls the automatic reboot and rc.local is the script holding commands which are pertinent only to a spe-
cific site.
When an automatic reboot is in progress, rc is invoked with the argument autoboot and runs a fsck with option -p to ``preen'' all the disks
of minor inconsistencies resulting from the last system shutdown and to check for serious inconsistencies caused by hardware or software
failure. If this auto-check and repair succeeds, then the second part of rc is run.
The second part of rc, which is run after a auto-reboot succeeds and also if rc is invoked when a single user shell terminates (see
init(8)), starts all the daemons on the system, preserves editor files and clears the scratch directory /tmp. Rc.local is executed immedi-
ately before any other commands after a successful fsck. Normally, the first commands placed in the rc.local file define the machine's
name, using hostname(1), and save any possible core image that might have been generated as a result of a system crash, savecore(8). The
latter command is included in the rc.local file because the directory in which core dumps are saved is usually site specific.
SEE ALSO init(8), reboot(8), savecore(8)BUGS 4th Berkeley Distribution April 27, 1985 RC(8)
11-11-2011
