Which of the following commands is used on the command line to send messages to the syslog systems?

Question

Options

• Alastlog
• Bklog
• Clogger
• Dslog
• Esyslog

• B
  3% (1)
• C
  84% (31)
• D
  8% (3)
• E
  5% (2)

Explanation

logger is the standard Unix/Linux command-line utility that allows users and scripts to submit messages directly to the system log (syslog), making it ideal for shell scripts that need to write to /var/log/syslog or similar log files.

Why the distractors are wrong:

• A. lastlog - displays the most recent login information for all users; it reads login records, not syslog.
• B. klog - relates to the kernel logging daemon (not a user-facing command for sending messages); it reads kernel messages from /proc/kmsg.
• D. slog - not a standard Linux command; this is a fictional distractor.
• E. syslog - syslog is the protocol/facility (and a C library function), not a command-line tool you invoke directly.

Memory tip: Think of logger as "I want to log a message right now" - it's the action word. The others are either daemons, readers, or made-up names. A quick example: logger "Backup completed successfully" writes that string directly to syslog.

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