Index for Section 8

Alphabetical listing for L

log(8)
NAME
  log - Records input and output from a program.

SYNOPSIS
  /usr/sbin/log <logfile> <command>

DESCRIPTION
  The log program runs <command> and logs the input to and output from
  <command> to the <logfile> file.  Input and output are logged until
  <command> exits, the log program exits, and the exit status of <command> is
  returned.

  The log program is used by the system installation procedure and the it(8)
  command to create the /var/adm/smlogs/install.log and
  /var/adm/smlogs/it.log installation log files.

RESTRICTIONS
  Because the log program is used in the installation standalone environment,
  program size was the greatest concern in its implementation. The log
  program does not search for the PATH variable to locate <command> and error
  messages are terse.

  The log program causes <command> to take standard input from and write
  standard output and standard error to UNIX pipes.  Some commands will not
  be able to operate in this environment; therefore, it is suggested that you
  use the script(1) command instead.  UNIX shells will not issue prompts when
  run from log unless the shell is started with an explicit interactive
  switch (-i for most shells).	For example,

       log foo.tmp /sbin/sh -i

  In the previous example, foo.tmp is the name of <logfile>.

  The log program intercepts end-of-file (usually Ctrl/d).  Therefore
  programs which normally receive end-of-file as an exit command must exit by
  some other means.

PARAMETERS
  logfile   The file in which to record the interaction being logged.

  command   The command to execute.

ERRORS
  Log open error
	    The log program was unable to open <logfile>.  Verify that the
	    directory exists and that ownerships and permissions are set
	    correctly.

  Exec Error
	    The log program was unable to execute <command>.  Verify that you
	    specified a full pathname for <command> and that <command> is an
	    executable file.

  Fork Error
	    The log program was unable to create one of the processes it
	    requires to log data.

RELATED INFORMATION
  Commands: it(8), script(1)