export PS_OBJDUMP=objdump
export PS_OBJCOPY=objcopy
export PS_READELF=readelf
export PS_NM=nm
export PS_STRIP=strip
export PS_DATE="date --iso-8601=seconds"
export PS_TAR=tar
export PS_MD5SUM=md5sum
export PS_TIMEOUT=timeout
export PS_GREP=grep