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What kind of command can monitor a log file?
Command can be any unix command including shell scripts or anything else. An even more robust approach is monit. This tool can monitor very many things, but one of them is that it will easily tail one or more logs, match against regex and then trigger a script.
How to write shell script for monitoring file system?
Shell Script for monitoring File system. Hi, need help to write one shell script to monitor UNIX file systems and if any changes happend like deletion of any file, adding new file, time stamp changed, permisson changed etc. Script need to send alert mail to defined person/mail id. I request someone to help me to create the…
How can I log error from my script?
Can somebody give me a hint on what could be wrong in my code… The () makes BASH execute most of the script in a subshell. All output of the subshell (stderr and stdout) is redirected to the logfile. Send the error output of the command instead of appending ‘error output from append’ -if that makes sense.
Can a command be executed from a log?
This will execute command when pattern is found in the log. Command can be any unix command including shell scripts or anything else. An even more robust approach is monit. This tool can monitor very many things, but one of them is that it will easily tail one or more logs, match against regex and then trigger a script.
Is there a way to monitor a shell script?
From the man page for mailx: Do not send messages with an empty body. This is useful for piping errors from cron (8) scripts. A more reliable way to deal with this would be to use a tool that was built for the exact scenario you have in mind (which is to monitor a log and send emails out on newly detected patterns).
How can I scan my network using Bash?
This article provides few simple scripts to scan and monitor network using combination of bash and ping command. Obviously, these scripts are no match to a full monitoring dedicated software like nagios but they could be useful for a small home brand networks, where implementing sophisticated monitoring system can become an overhead.
How to watch and monitor log files in real time?
Usually, the log files are rotated frequently on a Linux server by the logrotate utility. To watch log files that get rotated on a daily base you can use the -F flag to tail command.
Which is the best way to follow a log file?
For multiple possibilities, you could maybe drop the grep and instead use a case within the while. The capital -F tells tail to watch for the log file to be rotated; i.e. if the current file gets renamed and another file with the same name takes its place, tail will switch over to the new file.
How to create performance monitor logs in PowerShell?
Blog post that select the performance counter paths to collect processor, memory, and disk information. After I have gathered all the counters, I submit them to the Get-Counter cmdlet to begin the collection of the data.