The use of $RANDOM in Korn Shell can be very useful. Korn shell built-in $RANDOM can generate random numbers in the range 0:32767. At every call a new random value is generated:
The $RANDOM Korn shell built-in can also be used to generate numbers within a certain range, for example, if you want to run the sleep command for a random number of seconds.# echo $RANDOM 19962 # echo $RANDOM 19360
To sleep between 1 and 600 seconds (up to 10 minutes):
# sleep $(print $((RANDOM%600+1)))
If you found this useful, here's more on the same topic(s) in our blog:
- The default log file has been changed
- Measuring network throughput
- install_all_updates
- Generating random passwords
- Automating microcode discovery
UNIX Health Check delivers software to scan Linux and AIX systems for potential issues. Run our software on your system, and receive a report in just a few minutes. UNIX Health Check is an automated check list. It will report on perfomance, capacity, stability and security issues. It will alert on configurations that can be improved per best practices, or items that should be improved per audit guidelines. A report will be generated in the format you wish, and the report includes the issues discovered and information on how to solve the issues as well.
Interested in learning more?
Interested in learning more?
