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Full Discussion: Couple of newbie Unix questions
Top Forums UNIX for Dummies Questions & Answers Couple of newbie Unix questions Post 302445124 by ido1957 on Saturday 14th of August 2010 01:34:06 AM
Old 08-14-2010
Couple of newbie Unix questions
I entered a command at the prompt and it's interactive (not background). It gathers some stats and writes them to a file. I want to see this job running and what it's doing - I/O especially and maybe CPU and stuff. What can do to see this (say using a second session?)
I know it's a long job but I'm not getting a prompt back and I'm not sure if it's running.

Jobs command does nothing when I run it.

This same command is in a script that is run after a job completes. When I run the sript interactively it loads the log file with data. But when I run it nohup <> & it doesn't produce any output - I'm told it's Oracle data. There's another program in the script that creates a file and puts some initial data in it but not as muh data as when I run it interactively.

So interactive works good but 'nohup script &' seems to skip log files or lacks data within the log file.
 

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LEARN ABOUT OSF1

log

log(8)							      System Manager's Manual							    log(8)

NAME

       log - Records input and output from a program

SYNOPSIS

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

OPERANDS

       The file in which to record the interaction being logged.  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  exe-
       cutable 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)

																	    log(8)
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