LPI
101-500 · Question #199
The command echo $! will produce what output?
The correct answer is A. the process id of last background command. You've hit your Sonnet limit · resets Jun 8, 9am (UTC)
Shells and Shell Scripting
Question
The command echo $! will produce what output?
Options
- Athe process id of last background command
- Bthe exit status of the last command
- Cthe exit status of the last background command
- Dthe process id of the current shell
- Ethe name of the command being executed
How the community answered
(53 responses)- A91% (48)
- B2% (1)
- D2% (1)
- E6% (3)
Explanation
You've hit your Sonnet limit · resets Jun 8, 9am (UTC)
Topics
#shell variables#background processes#special variables#process ID
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