failures=0 check() { if ! eval "[ $* ]"; then echo "Failed: $*" : $((failures += 1)) fi } check '"$(PATH=/libexec command -V ld-elf.so.1)" = "ld-elf.so.1 is /libexec/ld-elf.so.1"' check '"$(PATH=/libexec command -V ld-elf.so.1; :)" = "ld-elf.so.1 is /libexec/ld-elf.so.1"' check '"$(PATH=/libexec command -pv ld-elf.so.1)" = ""' check '"$(PATH=/libexec command -pv ld-elf.so.1; :)" = ""' PATH=/libexec:$PATH check '"$(command -V ld-elf.so.1)" = "ld-elf.so.1 is /libexec/ld-elf.so.1"' check '"$(command -V ld-elf.so.1; :)" = "ld-elf.so.1 is /libexec/ld-elf.so.1"' check '"$(command -pv ld-elf.so.1)" = ""' check '"$(command -pv ld-elf.so.1; :)" = ""' PATH=/libexec check '"$(command -v ls)" = ""' case $(command -pv ls) in /*/ls) ;; *) echo "Failed: \$(command -pv ls) match /*/ls" : $((failures += 1)) ;; esac exit $((failures > 0))