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#!/bin/sh
set -e
for f; do
test -r "$f"
shebang="$(sed 1q < "$f" | \
tr '\t' ' ' | \
sed -n 's/#! *\([^ ]\+\)\(\| \+.*\)$/\1\n\2/p' | \
sed 's/^ *//')"
test -n "$shebang"
path="$(printf '%s\n' "$shebang" | sed -n 1p)"
program="$(printf '%s\n' "$path" | sed 's/^.*\/\([^/]\+\)$/\1/')"
arguments="$(printf '%s\n' "$shebang" | sed -n 2p)"
argument1="$(printf '%s\n' "$arguments" | cut -d ' ' -f 1)"
if test -z "$path"; then
continue
fi
test -x "$path"
if test "$program" = env; then
which -- "${arguments}" >/dev/null 2>/dev/null
elif test "$program" = shebang; then
which -- "${argument1}" >/dev/null 2>/dev/null
fi
done
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