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Top Forums UNIX for Dummies Questions & Answers Configure $PATH in /.bash_profile or /etc/paths? Post 302601438 by Corona688 on Thursday 23rd of February 2012 04:36:29 PM
Old 02-23-2012
It's not one giant thing. Anything can and does set it, and passes on copies of these changes to whatever it creates in turn. To get a complete understanding of how this PATH is set you'd need to know everything that changed it from the point your system runs init until the point your window manager creates your shell -- anything along the way between those two can affect PATH.

Only after all that happens, does your shell exist to start changing it too...

1) Your window manager creates a shell prompt. What PATH does your window manager have? Who knows. Whatever it had for whatever reason, your shell gets a copy.
2) shell reads /etc/profile. This is a script -- they can do anything they want in there, like read other files, set a special path for root only, or anything else you can imagine.
3) shell reads ~/.bashrc. This is also a script.

Last edited by Corona688; 02-23-2012 at 05:44 PM..
 

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resize(1X)							     MIT X11R4								resize(1X)

Name
       resize - utility to set TERMCAP and terminal settings to current window size

Syntax
       resize [-u] [-s [row col]]

Description
       The  uitility  prints  a  shell command for setting the TERM and TERMCAP environment variables to indicate the current size of xterm window
       from which the command is run. For this output to take effect, resize must either be evaluated as part of the command  line  (usually  done
       with  a	shell alias or function) or else redirected to a file which can then be read in. From the C shell (usually known as /bin/csh), the
       following alias could be defined in the user's .cshrc:

	   % alias rs 'set noglob; `eval resize`'

       After resizing the window, the user would type:

	   % rs

       Users of versions of the Bourne shell (usually known as /bin/sh) that do not have command functions will need to send the output to a  tem-
       porary file and the read it back in with the ``.'' command:

	   $ resize >/tmp/out
	   $ . /tmp/out

Options
       The following options may be used with resize:

       -u      This option indicates that Bourne shell commands should be generated even if the user's current shell is not /bin/sh.

       -c      This option indicates that C shell commands should be generated even if the user's current shell is not /bin/csh.

       -s [rows columns]
	       This option indicates that the Sun console escape sequences will be used instead of the special xterm escape code. If rows and col-
	       umns are given, resize will ask the xterm to resize itself. However, the window manager may choose to disallow the change.

Restrictions
       The -u or -c must appear to the left of -s if both are specified.

       There should be some global notion of display size; termcap and terminfo need to be rethought in the context of window systems.	(Fixed	in
       4.3BSD, and ULTRIX-32 1.2)

Files
       For the base termcap entry to modify.

       User's alias for the command.

See Also
       csh(1), tset(1), xterm(1X)

																	resize(1X)
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