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Operating Systems AIX Dynamic $PS1 content on AIX 4.2 ? Post 302340798 by Browser_ice on Tuesday 4th of August 2009 10:36:17 AM
Old 08-04-2009
Dynamic $PS1 content on AIX 4.2 ?

I am trying to set a dynamic PS1 that will change its content no matter what the user does. But I am finding that the shell variables I put in it do not get refreshed.

One simple example of what I mean :
PS1="$HOSTNAME:$USER $PWD > "

if the user changes directory, the PWD variable is not updated. It still has the values set at the initial PS1 setting.

How can I have any variables in PS1 be dynamically updated on each value changes and be transparent to what the user is doing ?

This is on AIX 4.2 servers with Korn.
 

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environ(4)							   File Formats 							environ(4)

NAME
environ, pref, variables - user-preference variables files for AT&T FACE SYNOPSIS
$HOME/pref/.environ $HOME/pref/.variables $HOME/FILECABINET/.pref $HOME/WASTEBASKET/.pref DESCRIPTION
The .environ, .pref, and .variables files contain variables that indicate user preferences for a variety of operations. The .environ and .variables files are located under the user's $HOME/pref directory. The .pref files are found under $HOME/FILECABINET, $HOME/WASTEBASKET, and any directory where preferences were set via the organize command. Names and descriptions for each variable are presented below. Vari- ables are listed one per line and are of the form variable=value. .environ Variables Variables found in .environ include: LOGINWIN[1-4] Windows that are opened when FACE is initialized. SORTMODE Sort mode for file folder listings. Values include the following hexadecimal digits: 1 Sorted alphabetically by name. 2 Files most recently modified first. 800 Sorted alphabetically by object type. The values above may be listed in reverse order by ORing the following value: 1000 List objects in reverse order. For example, a value of 1002 will produce a folder listing with files LEAST recently modified displayed first. A value of 1001 would produce a "reverse" alphabetical by name listing of the folder. DISPLAYMODE Display mode for file folders. Values include the following hexadecimal digits: 0 File names only. 4 File names and brief description. 8 File names, description, plus additional information. WASTEPROMPT Prompt before emptying wastebasket (yes/no?). WASTEDAYS Number of days before emptying wastebasket. PRINCMD[1-3] Print command defined to print files. UMASK Holds default permissions with which files will be created. .pref Variables Variables found in .pref are the following: SORTMODE Contains the same values as the SORTMODE variable described in .environ above. DISPMODE Contains the same values as the DISPLAYMODE variable described in .environ above. .variable Variables Variables found in .variables include: EDITOR Default editor. PS1 Shell prompt. SunOS 5.10 3 Jul 1990 environ(4)
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