- Specify the job to be resumed as a background job. If no job_id operand is given, the most recently suspended job shall be used. The format of job_id is described in the Base Definitions volume of POSIX.1‐2008, Section 3.204, Job Control Job ID.
- Provide a default value for the internationalization variables that are unset or null. (See the Base Definitions volume of POSIX.1‐2008, Section 8.2, Internationalization Variables for the precedence of internationalization variables used to determine the values of locale categories.)
- If set to a non-empty string value, override the values of all the other internationalization variables.
- Determine the locale for the interpretation of sequences of bytes of text data as characters (for example, single-byte as opposed to multi-byte characters in arguments).
- Determine the location of message catalogs for the processing of LC_MESSAGES.
"[%d] %s\n", <job-number>, <command>
- A number that can be used to identify the job to the wait, fg, and kill utilities. Using these utilities, the job can be identified by prefixing the job number with '%'.
- The associated command that was given to the shell.
- Successful completion.
- An error occurred.
kill −s stop job ID
... | xargs bg (bg)