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Top Forums Shell Programming and Scripting How to make variables in script function local? Post 302173685 by cfajohnson on Friday 7th of March 2008 01:03:37 PM
Old 03-07-2008
Quote:
Originally Posted by bakunin
Sorry, but i beg to differ: "local" is per default an alias to "typeset" and "typeset" is a shell-builtin keyword.

It may be in some shells. It is not in bash or [d]ash.
Quote:
In fact it is good style to define every variable with typeset prior to using it.

It is very bad practice to do so as it is not portable.

Code:
$ typeset var
typeset: not found

There is no guarantee that its behaviour will be the same in all shells that do have it.
 

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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 5.11 30 Jan 2004 script(1)
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