ksh.kshrc revision 1.21 
1:
2#	$OpenBSD: ksh.kshrc,v 1.21 2016/09/09 16:11:12 rpe Exp $
3#
4# NAME:
5#	ksh.kshrc - global initialization for ksh
6#
7# DESCRIPTION:
8#	Each invocation of /bin/ksh processes the file pointed
9#	to by $ENV (usually $HOME/.kshrc).
10#	This file is intended as a global .kshrc file for the
11#	Korn shell.  A user's $HOME/.kshrc file simply requires
12#	the line:
13#		. /etc/ksh.kshrc
14#	at or near the start to pick up the defaults in this
15#	file which can then be overridden as desired.
16#
17# SEE ALSO:
18#	$HOME/.kshrc
19#
20
21# RCSid:
22#	$From: ksh.kshrc,v 1.4 1992/12/05 13:14:48 sjg Exp $
23#
24#	@(#)Copyright (c) 1991 Simon J. Gerraty
25#
26#	This file is provided in the hope that it will
27#	be of use.  There is absolutely NO WARRANTY.
28#	Permission to copy, redistribute or otherwise
29#	use this file is hereby granted provided that
30#	the above copyright notice and this notice are
31#	left intact.
32
33case "$-" in
34*i*)	# we are interactive
35	# we may have su'ed so reset these
36	USER=`whoami 2>/dev/null`
37	USER=${USER:-`id | sed 's/^[^(]*(\([^)]*\)).*/\1/'`}
38	UID=`id -u`
39	case $UID in
40	0) PS1S='# ';;
41	esac
42	PS1S=${PS1S:-'$ '}
43	HOSTNAME=${HOSTNAME:-`uname -n`}
44	HOST=${HOSTNAME%%.*}
45
46	PROMPT="$USER:!$PS1S"
47	#PROMPT="<$USER@$HOST:!>$PS1S"
48	PPROMPT='$USER:$PWD:!'"$PS1S"
49	#PPROMPT='<$USER@$HOST:$PWD:!>'"$PS1S"
50	PS1=$PPROMPT
51	# $TTY is the tty we logged in on,
52	# $tty is that which we are in now (might by pty)
53	tty=`tty`
54	tty=`basename $tty`
55	TTY=${TTY:-$tty}
56	# $console is the system console device
57	console=$(sysctl machdep.console_device)
58	console=${console#*=}
59
60	set -o emacs
61
62	alias ls='ls -CF'
63	alias h='fc -l | more'
64
65	case "$TERM" in
66	sun*-s)
67		# sun console with status line
68		if [ "$tty" != "$console" ]; then
69			# ilabel
70			ILS='\033]L'; ILE='\033\\'
71			# window title bar
72			WLS='\033]l'; WLE='\033\\'
73		fi
74		;;
75	xterm*)
76		ILS='\033]1;'; ILE='\007'
77		WLS='\033]2;'; WLE='\007'
78		parent="`ps -ax 2>/dev/null | grep $PPID | grep -v grep`"
79		case "$parent" in
80		*telnet*)
81		export TERM=xterms;;
82		esac
83		;;
84	*)	;;
85	esac
86	# do we want window decorations?
87	if [ "$ILS" ]; then
88		function ilabel { print -n "${ILS}$*${ILE}">/dev/tty; }
89		function label { print -n "${WLS}$*${WLE}">/dev/tty; }
90
91		alias stripe='label "$USER@$HOST ($tty) - $PWD"'
92		alias istripe='ilabel "$USER@$HOST ($tty)"'
93
94		# Run stuff through this to preserve the exit code
95		function _ignore { local rc=$?; "$@"; return $rc; }
96
97		function wftp { ilabel "ftp $*"; "ftp" "$@"; _ignore eval istripe; }
98
99		function wcd     { \cd "$@";     _ignore eval stripe; }
100
101		function wssh    { \ssh "$@";    _ignore eval 'istripe; stripe'; }
102		function wtelnet { \telnet "$@"; _ignore eval 'istripe; stripe'; }
103		function wrlogin { \rlogin "$@"; _ignore eval 'istripe; stripe'; }
104		function wsu     { \su "$@";     _ignore eval 'istripe; stripe'; }
105
106		alias su=wsu
107		alias cd=wcd
108		alias ftp=wftp
109		alias ssh=wssh
110		alias telnet=wtelnet
111		alias rlogin=wrlogin
112		eval stripe
113		eval istripe
114		PS1=$PROMPT
115	fi
116	alias quit=exit
117	alias cls=clear
118	alias logout=exit
119	alias bye=exit
120	alias p='ps -l'
121	alias j=jobs
122	alias o='fg %-'
123	alias df='df -k'
124	alias du='du -k'
125	alias rsize='eval `resize`'
126;;
127*)	# non-interactive
128;;
129esac
130# commands for both interactive and non-interactive shells
131
132# is $1 missing from $2 (or PATH) ?
133function no_path {
134  eval _v="\$${2:-PATH}"
135  case :$_v: in
136  *:$1:*) return 1;;		# no we have it
137  esac
138  return 0
139}
140# if $1 exists and is not in path, append it
141function add_path {
142  [ -d ${1:-.} ] && no_path $* && eval ${2:-PATH}="\$${2:-PATH}:$1"
143}
144# if $1 exists and is not in path, prepend it
145function pre_path {
146  [ -d ${1:-.} ] && no_path $* && eval ${2:-PATH}="$1:\$${2:-PATH}"
147}
148# if $1 is in path, remove it
149function del_path {
150  no_path $* || eval ${2:-PATH}=`eval echo :'$'${2:-PATH}: |
151    sed -e "s;:$1:;:;g" -e "s;^:;;" -e "s;:\$;;"`
152}
153