A backup shell script must write its own status line into the system log through the syslog service. Type the name of the standard command-line utility it should call (command name only, no options).
LPIC-1 Exam 102-500, objective 108. Essential system services easy
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Answer
Type the answer.
Accepted answer
logger
Case sensitive — Linux is, and grading LS as ls would teach a falsehood.
Why
logger is the shell interface to syslog. `logger "backup finished"` submits the text at the default facility and severity of user.notice. `-p local3.err` selects a different facility and severity, `-t backup` sets the tag that appears before the message, and `-s` also echoes the line to stderr so an interactive run shows what was sent. On a journald system the message still arrives, because journald accepts the same /dev/log socket that rsyslog would.
Where this comes from
- Cited
- LPI exam objective 108.2
- What it says
- Use the logger command to submit messages to the system log.
Practise this
Reading one question is not practice. The trainer will draw a set from objective 108 and space the ones you get wrong.