Logging

log_alert¶

Log an alert-level message via logmsg. Suppressed when LOG_LEVEL is EMERG.

Arguments¶

• ... (string): Message text

Exit codes¶

• 0: Always

log_crit¶

Log a critical-level message via logmsg. Suppressed when LOG_LEVEL is ALERT or EMERG.

Arguments¶

• ... (string): Message text

Exit codes¶

• 0: Always

log_error¶

Log an error message via logmsg. Suppressed when LOG_LEVEL is CRIT, ALERT, or EMERG.

Arguments¶

• ... (string): Message text

Exit codes¶

• 0: Always

log_err¶

Alias for log_error (RFC 5424 priority name).

log_warn¶

Log a warning message via logmsg. Suppressed when LOG_LEVEL is ERR/ERROR, CRIT, ALERT, or EMERG.

Arguments¶

• ... (string): Message text

Exit codes¶

• 0: Always

log_warning¶

Alias for log_warn (RFC 5424 priority name).

log_notice¶

Log a notice message via logmsg. Suppressed when LOG_LEVEL is WARNING/WARN, ERR/ERROR, CRIT, ALERT, or EMERG.

Arguments¶

• ... (string): Message text

Exit codes¶

• 0: Always

log_info¶

Log an informational message via logmsg. Suppressed when LOG_LEVEL is NOTICE or more severe.

Arguments¶

• ... (string): Message text

Exit codes¶

• 0: Always

log_debug¶

Log a debug message via logmsg. Suppressed unless LOG_LEVEL=DEBUG.

Arguments¶

• ... (string): Message text

Exit codes¶

• 0: Always

logmsg¶

Log a message to the system log using systemd-cat, logger, or a fallback file. Accepts an optional -p priority, -t tag, and -s flag to also print to stdout.

When -p is given, the priority is forwarded to the underlying transport: systemd-cat receives --priority=; logger receives -p user..

Options¶

• -p

string Syslog priority name (emerg alert crit err warning notice info debug)

• -s

Also print to stdout

• -t

string Syslog identifier / tag

Arguments¶

• ... (string): Message text

Exit codes¶

• 0: Message logged successfully
• 1: Invalid option

Output on stdout¶

• Message line when -s is given