blob: 1b253e3ddf8ba8fb93e1accea47f50aa312f0215 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
# Move back up the directory tree to the first directory matching the name
bd() {
# Check arguments; default to ".."
if [ "$#" -gt 1 ] ; then
printf >&2 'bd(): Too many arguments\n'
return 2
fi
set -- "${1:-..}"
# Look at argument given; default to going up one level
case $1 in
# If it's slash, dot, or dot-dot, we'll just go there, like `cd` would
/|.|..) ;;
# Anything else with a slash anywhere is an error
*/*)
printf >&2 'bd(): Illegal slash\n'
return 2
;;
# Otherwise, add and keep chopping at the current directory until it's
# empty or it matches the request, then shift the request off
*)
set -- "$1" "$PWD"
while : ; do
case $2 in
*/"$1"|'') break ;;
*/) set -- "$1" "${2%/}" ;;
*) set -- "$1" "${2%/*}" ;;
esac
done
shift
;;
esac
# If we have nothing to change into, there's an error
if [ -z "$1" ] ; then
printf >&2 'bd(): No match\n'
return 1
fi
# We have a match; try and change into it
command cd -- "$1"
}
|