wait waits for the termination of one or more jobs or child processes in the background. If you specify job-ids, wait waits for all processes in each job to terminate. If you specify a pid, wait waits for the child process with that process ID to terminate. If no child process has that process ID, wait returns immediately.
If you specify neither a pid nor a job-id, wait waits for the termination of all process IDs known to the invoking shell.
If you specified a job-id which has terminated or is unknown by the invoking shell, an error message and a return code of 127 is returned. If you specified a pid which has terminated or is unknown to the shell, a return code of 127 is returned. If a signal terminated the process abnormally, the exit status is a value greater than 128 unique to that signal; otherwise, possible exit statuses are:
An error occurred.
A specified pid or job-id has terminated or is unknown by the invoking shell.
POSIX.2. x/OPEN Portability Guide 4.0. All UNIX systems. Windows Server 2012. Windows 8.1. Windows Server 2012 R2. Windows 10. Windows Server 2016. Windows Server 2019.
The ability to handle a job ID as well as a process ID is an extension to the XPG standard.
This command is built into the MKS KornShell.
PTC MKS Toolkit for Power Users
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PTC MKS Toolkit for Professional Developers
PTC MKS Toolkit for Professional Developers 64-Bit Edition
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PTC Windchill Requirements and Validation
PTC MKS Toolkit 10.3 Documentation Build 39.