# Checking for binary "scripts" without magic number is permitted but not # required by POSIX. However, it is preferable to getting errors like # Syntax error: word unexpected (expecting ")") # from trying to execute ELF binaries for the wrong architecture. T=`mktemp -d "${TMPDIR:-/tmp}/sh-test.XXXXXXXX"` || exit trap 'rm -rf "${T}"' 0 printf '\0echo bad\n' >"$T/testshellproc" chmod 755 "$T/testshellproc" PATH=$T:$PATH testshellproc 2>/dev/null