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Full Discussion: Log file in shell script
Top Forums Shell Programming and Scripting Log file in shell script Post 302961808 by Don Cragun on Friday 4th of December 2015 04:37:51 AM
Old 12-04-2015
Quote:
Originally Posted by arun888
thanks for your help don. i would need to assign the exit status[0,1] to a variable $var and redirect it to the log file.
You can't write to a log file after you exit.

Why do you care if the exit status is stored in a variable before you write it?

What is the name of the log file?

Do you want to append data to the end of the log file, or do you want to replace the entire contents of your log file each time you run your script?

Do you really just want to write a 0 or 1 to your log file? Or, do you want the name of the program producing that line to be included in the log file?

If you just want a 0 or 1 in a file, why not just capture the exit status of your program after it completes instead of creating a file?

Do you want a timestamp showing when that entry was written to your log file? If you do, what format do you want to use? And, do you want to use local time or coordinated universal time (AKA GMT)?
This User Gave Thanks to Don Cragun For This Post:
arun888
 

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LEARN ABOUT DEBIAN

fsck-larch

FSCK-LARCH(1)						      General Commands Manual						     FSCK-LARCH(1)

NAME

       fsck-larch - verify that a larch B-tree is internally consistent

SYNOPSIS

       fsck-larch [--config=FILE] [--dump-config] [--dump-memory-profile=METHOD] [--dump-setting-names] [--fix] [--generate-manpage=TEMPLATE] [-h]
       [--help] [--list-config-files] [--log=FILE] [--log-keep=N] [--log-level=LEVEL]  [--log-max=SIZE]  [--log-mode=MODE]  [--no-default-configs]
       [--output=FILE] [--trace=PATTERN] [--version] [FILE]...

DESCRIPTION

       fsck-larch  reads  an on-disk, committed B-tree created by the larch Python library, and verifies that it is internally consistent.  It re-
       ports any problems it finds, but does not currently fix them.

OPTIONS

       --config=FILE
	      add FILE to config files

       --dump-config
	      write out the entire current configuration

       --dump-memory-profile=METHOD
	      make memory profiling dumps using METHOD, which is one of: none, simple, meliae, or heapy (default: simple)

       --dump-setting-names
	      write out all names of settings and quit

       --fix  fix problems found?

       --generate-manpage=TEMPLATE
	      fill in manual page TEMPLATE

       -h, --help
	      show this help message and exit

       --list-config-files
	      list all possible config files

       --log=FILE
	      write log entries to FILE (default is to not write log files at all); use "syslog" to log to system log, or "none" to  disable  log-
	      ging

       --log-keep=N
	      keep last N logs (10)

       --log-level=LEVEL
	      log at LEVEL, one of debug, info, warning, error, critical, fatal (default: debug)

       --log-max=SIZE
	      rotate logs larger than SIZE, zero for never (default: 0)

       --log-mode=MODE
	      set permissions of new log files to MODE (octal; default 0600)

       --no-default-configs
	      clear list of configuration files to read

       --output=FILE
	      write output to FILE, instead of standard output

       --trace=PATTERN
	      add PATTERN to trace patterns

       --version
	      show program's version number and exit

SEE ALSO

       Larch home page (http://liw.fi/larch/).

																     FSCK-LARCH(1)
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