unsetenv TERMCAP in a csh
terryl at tekcrl.TEK.COM
terryl at tekcrl.TEK.COM
Mon May 9 06:52:00 AEST 1988
In article <3780 at csli.STANFORD.EDU+ gandalf at csli.stanford.edu (Juergen Wagner) writes:
+Instead of writing three-line csh scripts of the form
+ #! /bin/csh
+ unsetenv TERMCAP
+ set term = foo
+you could use something like
+ alias foo "unsetenv TERMCAP; set term = foo"
Yes.....
+Yet, even better:
+ alias term "unsetenv TERMCAP; set term = \!* ; tset"
Yes.....Yes.....
+which will work for
+ term vt100
+ term tvi950
+ term h19
+ term foo
+ term bar
+(you can guess how it continues). In fact, you can use any terminal
+type in /etc/termcap (Great, isn't it?).
Yes.....Yes.....Yes.....
+Aliases work much better because they are executed in the current
+environment, whereas scripts are run in a new shell. ...and there is
+no way to change the parent's environment just bu calling a script.
One Yes..... & one No.......
The Yes goes to the comments about aliases, the No to shell scripts
(with a caveat). If you call a shell script by name, then yes, there is no
way to change the parent's environment; IF, however, you say "source <script-
name>" (no quotes) then the parent's environment will be changed (use .
<script-name> if you use the Bourne Shell).
More information about the Comp.unix.questions
mailing list