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45 lines
1.0 KiB
Bash
45 lines
1.0 KiB
Bash
#!/bin/sh
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## Recursively search upward in parent and grandparent directories for
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## existence of the specified inode by any testable type. If two arguments
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## are passed assumes the first is a valid argument to the test command
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## (man test for details). If just one assumes a type of -e if the name
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## matches the base name of the command (default: pdhas). Otherwise, the
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## last character of the file name is assumed to be the type (without the
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## dash) and validated that it is okay.
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pdhas() {
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script=${0##*/}
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typ=e
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entry="$1"
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dir="$PWD"
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if test $# -eq 1; then
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ntyp=${script#pdhas}
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test -n "$ntyp" && typ="$ntyp"
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elif test $# -eq 2; then
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typ=$(printf "%s" "$1" | tail -c 1)
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entry="$2"
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fi
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case "$typ" in
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b | c | d | e | f | g | G | h | k | L | N | O | P | r | s | S | t | u | w | x) ;;
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*)
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printf "Invalid file test type: %s\n" $typ >&2
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exit 1
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;;
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esac
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while true; do
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path="$dir/$entry"
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# echo checking $path
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test -"$typ" "$path" && break
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test "$dir" = "" && return 1
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dir=${dir%/*}
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done
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echo "$path"
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return 0
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}
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pdhas "$@"
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