bash等同于Python的os.path.normpath？

your_command_goes_here | sed \'s?^\\./??\'

./

pax$ find -name \'qq*sh\'
./qq.ksh
./qq.sh
./qq.zsh
./qq2.sh
./qq2.zsh
./qqq/qq.sh

pax$ find -name \'qq*sh\' | sed \'s?^./??\'
qq.ksh
qq.sh
qq.zsh
qq2.sh
qq2.zsh
qqq/qq.sh

os.path.normpath

$ mkdir /tmp/one /tmp/one/two
$ ln -s /tmp/one/two /tmp/foo
$ python -c \'import os.path; print os.path.normpath(\"/tmp/foo/..\")\'
/tmp
$ ls /tmp/foo/..
two

/tmp/foo/..

/tmp/one

/tmp

$filename

$filename

filename=${filename#./}
find | sed -e \'s!^\\./!!\'

find

-printf

find path1 path2

.

find -printf \'%P\\n\'

find path1 path2 .

sed

newpath=`echo -n \"$oldpath\" | python -c \'import sys, os; print os.path.normpath(sys.stdin.readline())\'`

normpath() {
    [[ -z \"$1\" ]] && return

    local skip=0 p o c

    p=\"$1\"
    # check if we have absolute path and if not make it absolute
    [[ \"${p:0:1}\" != \"/\" ]] && p=\"$PWD/$p\"

    o=\"\"
    # loop on processing all path elements
    while [[ \"$p\" != \"/\" ]]; do
        # retrive current path element
        c=\"$(basename \"$p\")\"
        # shink our path on one(current) element
        p=\"$(dirname \"$p\")\"

        # basename/dirname correct handle multimple \"/\" chars
        # so we can not warry about them

        # skip elements \"/./\" 
        [[ \"$c\" == \".\" ]] && continue
        if [[ \"$c\" == \"..\" ]]; then
            # if we have point on parent dir, we must skip next element
            # in other words \"a/abc/../c\" must become \"a/c\"
            let \"skip += 1\"
        elif [[ 0 -lt $skip ]]; then
            # skip current element and decrease skip counter
            let \"skip -= 1\"
        else
            # this is normal element and we must add it to result
            [[ -n \"$o\" ]] && o=\"/$o\"
            o=\"$c$o\"
        fi
    done

    # last thing - restore original absolute path sign
    echo \"/$o\"
}

find -type f | sed \'s/^\\.\\///\'

realpath

realpath ..   # the most interesting thing

realpath .    # equivalent to `pwd\' and to `echo $PWD\'

os.path.normpath

realpath

realpath -m