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log(8)
NAME
log - Records input and output from a program
SYNOPSIS
/usr/sbin/log <logfile> <command>
OPERANDS
logfile
The file in which to record the interaction being logged.
command
The command to execute.
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.
ERRORS
· Log open error
Explanation:
The log program was unable to open <logfile>. Verify that the
directory exists and that ownerships and permissions are set
correctly.
· Exec Error
Explanation:
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
Explanation:
The log program was unable to create one of the processes it requires
to log data.
SEE ALSO
Commands: it(8), script(1)
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Index for Section 8 |
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Alphabetical listing for L |
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Top of page |
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