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今天开始，灌就一个字。
原帖由 "ihweb" 发表：
大叔能说说fg 的用法吗？  偶没装男人。 :wink: :wink:
fg [jobIDs]
Bring the jobs specified by job IDs into the foreground. If no job IDs are specified, fg brings the current job into the foreground.
Fg is a built-in shell command. It is only available in shells that support job control.
Examples:
$ vi myfile
CTRL-z
Suspended
Run other commands while vi is suspended.
$ date
Thu Jul 19 17:04:31 CDT 2001
Restart vi with the fg command.
$ fg
Continue editing with vi.
In this example, fg is used without a job ID so it moves the current job into the foreground. Vi is the current job because it was recently suspended and no other jobs have been started.
$ fg %sed
sed 's/.$//' < winf.txt >; ufile
Bring job ID %sed (job whose command line begins with sed) into the foreground. The prompt will not return until the sed command finishes executing. Note: As was shown in this example, most shells print the command-line of jobs that have been moved into the foreground.
$ jobs
[1] Running longcmd
[2] + Suspended sed 's/.$//' < winf.txt >; ufile
$ fg %1 %2
longcmd
sed 's/.$//' < winf.txt >; ufile
The jobs command lists the job numbers for all jobs in the current shell. The fg command moves job ID %1 and %2 (job numbers one and two) into the foreground. First longcmd will run in the foreground then the sed command will run in the foreground.
See Also: foreground process, job control, job, current job, jobs command, bg command |
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发表于 2003-07-08 08:40
