grep can scan multiple files in one go, so it is fine to present it the expanded LOG variable, but, as the directory is missing for the second and third entries, "files are not found". There are several options to cure that: a) use an array for LOG, and shell's "parameter expansion / pattern substitution": b) Use a for loop across the files, but don't forget the directory here as well. c)cat all three files into grep (which will lose the filename output)
You seem to be a for loop enthusiast. Be aware that there may be good reasons to run one instance of grep for every single keyword in the LIST, but you have to sacrifice quite some performance in order to do so. How about some optimisation? Try adding colour=always to highlight the respective matched keyword:
And, mail programs usually take (comma separated?) user lists immediately:
I am struggling with the C part. can you explain a little and where to put this in at.
ok, i have a script which i use to search my process' for specific keywords and kill any process containing them. there is a prompt to enter a keyword for searching and another prompt for which user you want to search the process' of. i want the script to have something that if you entered a search... (1 Reply)
Hi,
I want to write a script which will count the occurence of several different strings in a log file? Can anyone help me with this? Thanks in advance! (1 Reply)
Hi Gurus,
I am new to unix and need your help to make a shell script. I have a requirement, would appreciate if you could please help me on it:
Requirement:
-------------
I will pass 2 parameters in shell script 1). Directory name say errors 2). file extension say .log
First of all this... (4 Replies)
Hi,
Have to check log file for yesterday, I have tried this script, but it is showing error as -d illegal option.
res=max_total`date -d'yesterday'+%y%m%d`.log
res=max_total`date +%y%m%d`.log
this is working fine for today.
Please help me on this.
Thanks in advance,
Neha. (3 Replies)
Hi, Gurus,
I need a scripts to check specified file if it exists or not at certain time (say every month between 5th and 7th). if file exists do something otherwise do another thing.
can anybody help this?
Thanks in advance
:wall: (3 Replies)
I haven't coded in ksh in forever and this script is proving me not a great coder. I keep getting unexpected end of file when I try to execute this...Line 94 is the last line of the code..
#!/usr/bin/ksh
. /home/oraprod/.bash_profile
DBSID=prod # Database sid
CONNECTSTR=apps/xxxxxxxx@prod #... (6 Replies)
Hello,
Few days ago I found a person checking his mail log by AWK. But unfortunately I forget to take the command from him. Today I got to need that command badly. Here is a reference.
When I check from my mail log like this it will not show me the details.
grep "from=<noreply@panix.com>"... (2 Replies)
Hi,
I want to write a script which continuously checking status of a script running in background by nohup command. And if same script is not running then immediately start the script...please help..
i am using below command to run script
nohup system_traps.sh &
but in some... (9 Replies)
I am using blow script :--
#!/bin/bash
FIND=$(ps -elf | grep "snmp_trap.sh" | grep -v grep) #check snmp_trap.sh is running or not
if
then
# echo "process found"
exit 0;
else
echo "process not found"
exec /home/Ketan_r /snmp_trap.sh 2>&1 & disown -h ... (1 Reply)
Discussion started by: ketanraut
1 Replies
LEARN ABOUT DEBIAN
cmannotifyd
cmannotifyd(8) CMAN Notification Daemon cmannotifyd(8)NAME
cmannotifyd - CMAN Notification Daemon
SYNOPSIS
cmannotifyd [-f] [-d]
DESCRIPTION
The cmannotifyd daemon talks to CMAN and provides a mechanism to notify external entities about cluster changes.
CMAN dispatches 3 kind of notifications:
- CMAN_REASON_TRY_SHUTDOWN when cman requests to all clients if it is allowed to shutdown.
- CMAN_REASON_STATECHANGE when cman detects a node joining or leaving the cluster.
- CMAN_REASON_CONFIG_UPDATE when a configuration change event has been detected/requested.
These notifications are then dispatched to the shell script cman_notify in the environment variable CMAN_NOTIFICATION.
cman_notify will then execute all the scripts in the configured notification directory (default: /etc/cluster/cman-notify.d) passing a very
minimal set of envvars including, of course, the CMAN_NOTIFICATION= type. The execution order is set by the filename as shown by "LC_ALL=C
ls -las".
cmannotifyd logs are stored in the default log file (/var/log/cluster/cmannotifyd.log).
cman_notify logs are stored in the default log file (/var/log/cluster/cman_notify.log). By default the output from the scripts executed by
cman_notify is redirected to /dev/null. Users can either set CMAN_NOTIFICATION_DEBUG=1 in their environment or set proper debug configura-
tion in cluster.conf to redirect scripts output to the cman_notify log file.
NOTES
cmannotifyd does not block on cman_notify nor check the exit status of the script.
Notifications are dispatched in the same order as they arrive, one by one.
CMAN_REASON_TRY_SHUTDOWN is passed to scripts for information only, they can not influence cman's decsion about whether or not to shut
down.
CMAN_REASON_STATECHANGE also implies CMAN_NOTIFICATION_QUORUM exported in the environment. CMAN_NOTIFICATION_QUORUM will be set to 1 (when
the node is part of a quorate cluster) or 0 (otherwise).
A template for cman_notify scripts can be found in the doc/ directory.
OPTIONS -f Run in the foreground (do not fork / daemonize).
-d Enable debug output.
November 2008 cmannotifyd(8)