| EPERM | 1 | Operation not permitted |
| ENOENT | 2 | No such file or directory |
| ESRCH | 3 | No such process |
| EINTR | 4 | Interrupted system call |
| EIO | 5 | I/O error |
| ENXIO | 6 | No such device or address |
| E2BIG | 7 | Argument list too long |
| ENOEXEC | 8 | Exec format error |
| EBADF | 9 | Bad file descriptor |
| ECHILD | 10 | No child process |
| EAGAIN | 11 | Resource temporarily unavailable |
| EWOULDBLOCK | 11 | Resource temporarily unavailable |
| ENOMEM | 12 | Out of memory |
| EACCES | 13 | Permission denied |
| EFAULT | 14 | Bad address |
| ENOTBLK | 15 | Block device required |
| EBUSY | 16 | Resource busy |
| EEXIST | 17 | File exists |
| EXDEV | 18 | Cross-device link |
| ENODEV | 19 | No such device |
| ENOTDIR | 20 | Not a directory |
| EISDIR | 21 | Is a directory |
| EINVAL | 22 | Invalid argument |
| ENFILE | 23 | Too many open files in system |
| EMFILE | 24 | No file descriptors available |
| ENOTTY | 25 | Not a tty |
| ETXTBSY | 26 | Text file busy |
| EFBIG | 27 | File too large |
| ENOSPC | 28 | No space left on device |
| ESPIPE | 29 | Invalid seek |
| EROFS | 30 | Read-only file system |
| EMLINK | 31 | Too many links |
| EPIPE | 32 | Broken pipe |
| EDOM | 33 | Domain error |
| ERANGE | 34 | Result not representable |
| EDEADLK | 35 | Resource deadlock would occur |
| EDEADLOCK | 35 | Resource deadlock would occur |
| ENAMETOOLONG | 36 | File name too long |
| ENOLCK | 37 | No locks available |
| ENOSYS | 38 | Function not implemented |
| ENOTEMPTY | 39 | Directory not empty |
| ELOOP | 40 | Too many symbolic links |
| ENOMSG | 42 | No message of desired type |
| EIDRM | 43 | Identifier removed |
| ECHRNG | 44 | Channel number out of range |
| EL2NSYNC | 45 | Level 2 not synchronized |
| EL3HLT | 46 | Level 3 halted |
| EL3RST | 47 | Level 3 reset |
| ELNRNG | 48 | Link number out of range |
| EUNATCH | 49 | Protocol driver not attached |
| ENOCSI | 50 | No CSI structure available |
| EL2HLT | 51 | Level 2 halted |
| EBADE | 52 | Invalid exchange |
| EBADR | 53 | Invalid request descriptor |
| EXFULL | 54 | Exchange full |
| ENOANO | 55 | No anode |
| EBADRQC | 56 | Invalid request code |
| EBADSLT | 57 | Invalid slot |
| EBFONT | 59 | Bad font file format |
| ENOSTR | 60 | Device not a stream |
| ENODATA | 61 | No data available |
| ETIME | 62 | Timer expired |
| ENOSR | 63 | Out of streams resources |
| ENONET | 64 | Machine is not on the network |
| ENOPKG | 65 | Package not installed |
| EREMOTE | 66 | Object is remote |
| ENOLINK | 67 | Link has been severed |
| EADV | 68 | Advertise error |
| ESRMNT | 69 | Srmount error |
| ECOMM | 70 | Communication error on send |
| EPROTO | 71 | Protocol error |
| EMULTIHOP | 72 | Multihop attempted |
| EDOTDOT | 73 | RFS specific error |
| EBADMSG | 74 | Not a data message |
| EOVERFLOW | 75 | Value too large |
| ENOTUNIQ | 76 | Name not unique on network |
| EBADFD | 77 | File descriptor in bad state |
| EREMCHG | 78 | Remote address changed |
| ELIBACC | 79 | Can not access a needed shared library |
| ELIBBAD | 80 | Accessing a corrupted shared library |
| ELIBSCN | 81 | .lib section in a.out corrupted |
| ELIBMAX | 82 | Too many shared libraries |
| ELIBEXEC | 83 | Cannot exec a shared library directly |
| EILSEQ | 84 | Illegal byte sequence |
| ERESTART | 85 | Interrupted system call should be restarted |
| ESTRPIPE | 86 | Streams pipe error |
| EUSERS | 87 | Too many users |
| ENOTSOCK | 88 | Socket operation on non-socket |
| EDESTADDRREQ | 89 | Destination address required |
| EMSGSIZE | 90 | Message too long |
| EPROTOTYPE | 91 | Protocol wrong type for socket |
| ENOPROTOOPT | 92 | Protocol not available |
| EPROTONOSUPPORT | 93 | Protocol not supported |
| ESOCKTNOSUPPORT | 94 | Socket type not supported |
| EOPNOTSUPP | 95 | Operation not supported |
| ENOTSUP | 95 | Operation not supported |
| EPFNOSUPPORT | 96 | Protocol family not supported |
| EAFNOSUPPORT | 97 | Address family not supported |
| EADDRINUSE | 98 | Address already in use |
| EADDRNOTAVAIL | 99 | Cannot assign requested address |
| ENETDOWN | 100 | Network is down |
| ENETUNREACH | 101 | Network is unreachable |
| ENETRESET | 102 | Network dropped connection |
| ECONNABORTED | 103 | Software caused connection abort |
| ECONNRESET | 104 | Connection reset by peer |
| ENOBUFS | 105 | No buffer space available |
| EISCONN | 106 | Transport endpoint is connected |
| ENOTCONN | 107 | Transport endpoint not connected |
| ESHUTDOWN | 108 | Cannot send after shutdown |
| ETOOMANYREFS | 109 | Too many references |
| ETIMEDOUT | 110 | Connection timed out |
| ECONNREFUSED | 111 | Connection refused |
| EHOSTDOWN | 112 | Host is down |
| EHOSTUNREACH | 113 | No route to host |
| EALREADY | 114 | Operation already in progress |
| EINPROGRESS | 115 | Operation now in progress |
| ESTALE | 116 | Stale file handle |
| EUCLEAN | 117 | Structure needs cleaning |
| ENOTNAM | 118 | Not a XENIX named type file |
| ENAVAIL | 119 | No XENIX semaphores available |
| EISNAM | 120 | Is a named type file |
| EREMOTEIO | 121 | Remote I/O error |
| EDQUOT | 122 | Quota exceeded |
| ENOMEDIUM | 123 | No medium found |
| EMEDIUMTYPE | 124 | Wrong medium type |
| ECANCELED | 125 | Operation canceled |
| ENOKEY | 126 | Required key not available |
| EKEYEXPIRED | 127 | Key has expired |
| EKEYREVOKED | 128 | Key has been revoked |
| EKEYREJECTED | 129 | Key was rejected by service |
| EOWNERDEAD | 130 | Owner died |
| ENOTRECOVERABLE | 131 | State not recoverable |
| ERFKILL | 132 | Operation not possible due to RF-kill |
| EHWPOISON | 133 | Memory page has hardware error |