常用Linux错误代码含义，如下表所示：
名称 | 值 | 描述 |
EPERM | 1 | 操作不允许 |
ENOENT | 2 | 无此文件或目录 |
ESRCH | 3 | 无此进程 |
EINTR | 4 | 中断系统调用 |
EIO | 5 | I/O 错误 |
ENXIO | 6 | 无此设备或地址 |
E2BIG | 7 | 参数列表过长 |
ENOEXEC | 8 | 执行文件错误 |
EBADF | 9 | 错误的文件数 |
ECHILD | 10 | 无子进程 |
EAGAIN | 11 | 再尝试一下 |
ENOMEM | 12 | 内存溢出 |
EACCES | 13 | 要求被否定 |
EFAULT | 14 | 错误地址 |
ENOTBLK | 15 | 块设备请求 |
EBUSY | 16 | 设备或者资源忙 |
EEXIST | 17 | 文件存在 |
EXDEV | 18 | Cross-device link |
ENODEV | 19 | 无此设备 |
ENOTDIR | 20 | 不是一个目录文件 |
EISDIR | 21 | I是一个目录文件 |
EINVAL | 22 | 无效的参数 |
ENFILE | 23 | 文件表溢出 |
EMFILE | 24 | 打开文件过多 |
ENOTTY | 25 | 不是一个TTY设备 |
ETXTBSY | 26 | 文件忙 |
EFBIG | 27 | 文件过大 |
ENOSPC | 28 | 此设备上没有空间了 |
ESPIPE | 29 | 无效的偏移 |
EROFS | 30 | 只读文件系统 |
EMLINK | 31 | 链接过多 |
EPIPE | 32 | 错误的管道 |
EDOM | 33 | Math argument out of domain |
ERANGE | 34 | Math result not representable |
EDEADLK | 35 | Resource deadlock would occur |
ENAMETOOLONG | 36 | 文件名过长 |
ENOLCK | 37 | No record locks available |
ENOSYS | 38 | 函数没有实现 |
ENOTEMPTY | 39 | 目录非空 |
ELOOP | 40 | Too many symbolic links encountered |
EWOULDBLOCK | 41 | Same as EAGAIN |
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 |
EDEADLOCK | - | Same as EDEADLK |
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 for defined data type |
ENOTUNIQ | 76 | Name not unique on network |
EBADFD | 77 | File descriptor in bad state |
EREMCHG | 78 | Remote address changed |
ELIBACC | 79 | Cannot access a needed shared library |
ELIBBAD | 80 | Accessing a corrupted shared library |
ELIBSCN | 81 | A .lib section in an .out is corrupted |
ELIBMAX | 82 | Linking in 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 on transport |
EPFNOSUPPORT | 96 | Protocol family not supported |
EAFNOSUPPORT | 97 | Address family not supported by protocol |
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 |
ECONNABORTED | 103 | Software caused connection |
ECONNRESET | 104 | Connection reset by |
ENOBUFS | 105 | No buffer space available |
EISCONN | 106 | Transport endpoint |
ENOTCONN | 107 | Transport endpoint |
ESHUTDOWN | 108 | Cannot send after transport |
ETOOMANYREFS | 109 | Too many references |
ETIMEDOUT | 110 | Connection timed |
ECONNREFUSED | 111 | Connection refused |
EHOSTDOWN | 112 | Host is down |
EHOSTUNREACH | 113 | No route to host |
EALREADY | 114 | Operation already |
EINPROGRESS | 115 | Operation now in |
ESTALE | 116 | Stale NFS file handle |
EUCLEAN | 117 | Structure needs cleaning |
ENOTNAM | 118 | Not a XENIX-named |
ENAVAIL | 119 | No XENIX semaphores |
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 |