blob: f69cd5039bafeba9389cad0657b609634018481e (
plain)
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
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
#!/bin/bash
#From: kaz@ashi.footprints.net (Kaz Kylheku)
#Newsgroups: comp.os.linux.misc
#Subject: Re: bash question: subdirectories
#Message-ID: <slrn8a0gu9.v5n.kaz@ashi.FootPrints.net>
#Date: Tue, 08 Feb 2000 16:24:35 GMT
#Actually it can be made to. That is to say, it is possible to code a recursive
#descender function in the bash language. Here is an example.
#
#What is nice about this is that you can embed the function into your shell
#script. The function changes the current working directory as it descends.
#So it can handle arbitrarily deep paths. Whereas paths generated by the
#find command can cause a problem when they get too long; the kernel has a
#hard limit on the length of the string passed to the open() and other
#system calls.
#There are races; what if the directory tree is blown away during the traversal?
#The function won't be able to crawl back up using the .. link and will just
#bail.
# Recursive Directory Traverser
# Author: Kaz Kylheku
# Date: Feb 27, 1999
# Copyright 1999
# Function parameter usage:
# $1 directory to search
# $2 pattern to search for
# $3 command to execute
# $4 secret argument for passing down path
function recurse
{
local file
local path
if [ "$4" = "" ] ; then
path="${1%/}/"
else
path="$4$1/"
fi
if cd "$1" ; then
for file in $2; do
if [ -f "$file" ] || [ -d "$file" ]; then
eval "$3"
fi
done
for file in .* * ; do
if [ "$file" = "." ] || [ "$file" = ".." ] ; then
continue
fi
if [ -d "$file" ] && [ ! -L "$file" ]; then
recurse "$file" "$2" "$3" "$path"
fi
done
cd ..
fi
}
recurse "$1" "$2" 'echo "$path$file"'
|
