- ECOMM
- EKEYREJECTED
- ELIBACC
- ENABLE_ACL
- ENABLE_ESMTP
- ENABLE_PCMK_REMOTE
- ENABLE_SNMP
- ENABLE_VERSIONED_ATTRS
- ENDIAN_LOCAL
- ENODATA
- ENOKEY
- ENOSR
- ENOSTR
- ENOTUNIQ
- ENUM_DYLD_BOOL
- EOS
- EOS_CHAR
- EPOCH_SECONDS
- EREMOTEIO
- ERROR_SUFFIX
- ETIME
- EUNATCH
- EXIT_FAILURE
- EXIT_REASON_MAX_LEN
- EXIT_SUCCESS
- EXPAND_CONSTRAINT_IDREF