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Full Discussion: Modify script to generate a log file
Top Forums Shell Programming and Scripting Modify script to generate a log file Post 302076587 by thestevew on Wednesday 14th of June 2006 10:40:26 AM
Old 06-14-2006
It will work, but not quite how you would expect.

Assume that the script is called script.sh
Quote:
[ ! -f "$0.log" ] && > $0.log
Will create an empty file called script.sh.log in the current working directory as $0 is replaced by the script's file name.

Quote:
function log
{
echo "$@" >> "$0.log"
}
Will write whatever is passed to it in the file log.log in the current directory as $0 is replaced by the function name.

You could add a global variable to hold the log file name
Code:
function log
{
  echo "$@" >> "$0.log"
}
LOGFILE=$0.log
[ ! -f "$0.log" ] && > $0.log
log "something"

or pass the filename to the function
Code:
function log
{
  typeset logfile=$1
  shift
  echo "$@" >> $logfile
}
[ ! -f "$0.log" ] && > $0.log
log "$0" "something"

 

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LEARN ABOUT SUNOS

script

script(1)							   User Commands							 script(1)

NAME

       script - make record of a terminal session

SYNOPSIS

       script [-a] [filename]

DESCRIPTION

       The  script  utility  makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the
       record is saved in the file typescript. See WARNINGS.

       The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends
       when the forked shell exits or when Control-d is typed.

OPTIONS

       The following option is supported:

       -a	Appends the session record to filename, rather than overwriting it.

NOTES

       script places everything that appears on the screen in filename, including prompts.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |Enabled			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       attributes(5)

WARNINGS

       script  can  pose  a  security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a
       privileged user, that is, root. Be sure that typescript is not a link before running script.

SunOS 5.10							    30 Jan 2004 							 script(1)
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