logger(1)                                                         logger(1)

NAME
     logger - log messages

SYNOPSIS
     logger string

DESCRIPTION
     The logger utility saves a message, in an unspecified manner and for-
     mat, containing the string operands provided by the user. The messages
     are expected to be evaluated later by personnel performing system
     administration tasks.

     It is implementation-dependent whether messages written in locales
     other than the POSIX locale are effective.

OPTIONS
     string   One of the string arguments whose contents are concatenated
              together, in the order specified, separated by single space
              characters.

ENVIRONMENT VARIABLES
     The following environment variables affect the execution of logger:

     LANG Provide a default value for the internationalisation variables
          that are unset or null. If LANG is unset or null, the correspond-
          ing value from the implementation-specific default locale will be
          used. If any of the internationalisation varibles contains an
          invalid setting, the utility will behave as if none of the vari-
          ables had been defined.

     LCALL
          If set to a non-empty string value, override the values of all
          the other internationalisation variables.

     LCCTYPE
          Determine the locale for the interpretation of sequences of bytes
          of text data as characters (for example, single- as opposed to
          multi-byte characters in arguments).

     LCMESSAGES
          Determine the locale that should be used to affect the format and
          contents of diagnostic messages written to standard error. (This
          means diagnostics from logger to the user or application, not
          diagnostic messages that the user is sending to the system
          administrator).

EXIT STATUS
     The following exit values are returned:

     0   Successful completion.

     >0  An error occurred.



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logger(1)                                                         logger(1)

APPLICATION USAGE
     This utility allows logging of information for later use by a system
     administrator or programmer in determining why non-interactive utili-
     ties have failed. The locations of the saved messages, their format
     and retention period are all unspecified. There is no method for a
     portable application to read messages, once written.

EXAMPLE
     A batch application, running non-interactively, tries to read a confi-
     guration file and fails; it may attempt to notify the system adminis-
     trator with:

        logger myname: unable to read file foo. [timestamp]

SEE ALSO
     mailx(1), write(1).






































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