Not all of them are for bash, some are for csh(FreeBSD), minor changes may be required to run on your environment.
Made a cool script to use on the newly installed Ubuntu/Debian box, that will install needed great soft!
Greps defined log files (change path to your's) to find if any serious stuff took plase on the system.
Monitores info of chosen service/demon memory usage and state every X $time, and saves it to the log file.
Used during hard bug repro to investigate a specific action needed to break functionality and EXACT time
Runs given commands over and over again
Brings up and down given service/demon for testing or debug purposes