Runs jobs when the system load level permits.
batch
The batch command reads from standard input the names of commands to be run at a later time and runs the jobs when the system load level permits. The batch command mails you all output from standard output and standard error for the scheduled commands, unless you redirect that output. It also writes the job number and the scheduled time to standard error.
When the batch command is executed, it retains variables in the shell environment, and the current directory; however, it does not retain open file descriptors, traps, and priority.
The batch command is equivalent to entering the at -q b -m now command. The -q b flag specifies the at queue for batch jobs.
This command returns the following exit values:
| 0 | Successful completion |
| >0 | An error occurred. |
To run a job when the system load permits, enter:
batch <<! longjob !
This example shows the use of a "Here Document" to send standard input to the batch command.
| /usr/bin/batch | Contains the batch command. |
| /bin/batch | Symbolic link to the batch command. |
| /var/adm/cron | Indicates the main cron daemon directory. |
| /var/spool/cron/atjobs | Indicates the spool area. |
Commands: at, bsh, csh, kill, ksh, mail, nice, ps.
Daemons: cron.
Input and Output Redirection Overview in AIX Version 4.3 System User's Guide: Operating System and Devices describes how the operating system processes input and output.
Korn Shell Special Commands and Bourne Shell Special Commands in AIX Version 4.3 System User's Guide: Operating System and Devices.
National Language Support Overview for Programming in AIX General Programming Concepts: Writing and Debugging Programs explains collating sequences, equivalence classes, and locale.
Shells Overview in AIX Version 4.3 System User's Guide: Operating System and Devices describes what shells are, the different types of shells, and how shells affect the way commands are interpreted.