'script' command Post: 302991516

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Top Forums Shell Programming and Scripting 'script' command Post 302991516 by drysdalk on Sunday 12th of February 2017 04:12:08 PM

02-12-2017

Registered User

Hi,

Essentially, this is correct behaviour. What's happening is that the 'script' command is spawning its own sub-shell underneath your current shell, and that's why you get a shell prompt and execution of the script does not continue. If you type 'exit' at that new prompt, the sub-shell will exit and the execution of the script will continue as normal past that point, albeit without being logged as a typescript.

If what you're actually wanting to accomplish is logging the output of a script, there's a few ways you could go about it, and the 'script' command isn't in fact the appropriate answer here.

If the script is non-interactive - that is, it requires no user input (and your provided test script looks like it doesn't) - then you could perhaps do something like this to log its output:

Code:

./script.sh | tee -a log.txt

The 'tee' command ensures that you still see the output of a script on standard output, but it also gets captured to a logfile (log.txt in the current directory, in this case). User inputs and certain other things won't get captured this way, but regular output will. This will make sure it goes to a file, and to the screen at the same time.

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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)