commit - 67075c3634c316ce9cc0e6fa88e65ca27503abc4
commit + 3a9ee6351914b85db336d51b0e450f954d37d7a6
blob - ff1a928dbd1c5db2710c7937f6dece615c6b26f2
blob + 33b0d89cd0936db4637753f2f37b4e8cb5eb5ed4
--- bin/9
+++ bin/9
#!/bin/sh
-export PLAN9=/usr/local/plan9
-export PATH=$PLAN9/bin:$PATH
+export PLAN9=${PLAN9:-/usr/local/plan9}
+case "$PATH" in
+$PLAN9/bin:*)
+ ;;
+*)
+ export PATH=$PLAN9/bin:$PATH
+ ;;
+esac
case $# in
[1-9]*)
blob - 1fb75d23127708d80881584bc7425215332ecdb7
blob + 354976d31307df35833445e19ef21ff8b59715e9
--- bin/9.rc
+++ bin/9.rc
#!/usr/local/plan9/bin/rc
-PLAN9=/usr/local/plan9
+if(~ $#PLAN9 0)
+ PLAN9=/usr/local/plan9
if(! ~ $path(1) $PLAN9/bin)
path=($PLAN9/bin $path)
blob - 80d5470505d973a4af7ed9d56368c919bc9553c5
blob + f3e57ee6dfc9866207d4f4aa62bc63ebe10b3589
--- man/man1/9.1
+++ man/man1/9.1
.I cmd .
It sets
.B $PLAN9
+if necessary
and adds
.B $PLAN9/bin
to the beginning of
.PP
If run with no arguments,
.B 9
-does not do anything. This is so that it can be invoked from
+does not do anything, so it can be invoked from
.IR sh -style
shells using
.B .
.I 9.rc
is the same as
.I 9
-but written for the shell
+but written for use by the shell
.IR rc (1).
.SH EXAMPLES
Search for greek in the password file: