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#From: "Grigoriy Strokin" <grg@philol.msu.ru>
#Newsgroups: comp.unix.shell
#Subject: fast basename and dirname functions for BASH/SH
#Date: Sat, 27 Dec 1997 21:18:40 +0300
#
#Please send your comments to grg@philol.msu.ru
function basename()
{
local name="${1##*/}"
echo "${name%$2}"
}
function dirname()
{
local dir="${1%${1##*/}}"
[ "${dir:=./}" != "/" ] && dir="${dir%?}"
echo "$dir"
}
# Two additional functions:
# 1) namename prints the basename without extension
# 2) ext prints extension of a file, including "."
function namename()
{
local name=${1##*/}
local name0="${name%.*}"
echo "${name0:-$name}"
}
function ext()
{
local name=${1##*/}
local name0="${name%.*}"
local ext=${name0:+${name#$name0}}
echo "${ext:-.}"
}