linux命令执行后无论成功与否都有一个返回值：
如果为 0，则表示命令执行成功，其它值则表示错误，
具体的错误码含义如下：
"os error code 1: operation not permitted" "os error code 2: no such file or directory" "os error code 3: no such process" "os error code 4: interrupted system call" "os error code 5: input/output error" "os error code 6: no such device or address" "os error code 7: argument list too long" "os error code 8: exec format error" "os error code 9: bad file descriptor" "os error code 10: no child processes" "os error code 11: resource temporarily unavailable" "os error code 12: cannot allocate memory" "os error code 13: permission denied" "os error code 14: bad address" "os error code 15: block device required" "os error code 16: device or resource busy" "os error code 17: file exists" "os error code 18: invalid cross-device link" "os error code 19: no such device" "os error code 20: not a directory" "os error code 21: is a directory" "os error code 22: invalid argument" "os error code 23: too many open files in system" "os error code 24: too many open files" "os error code 25: inappropriate ioctl for device" "os error code 26: text file busy" "os error code 27: file too large" "os error code 28: no space left on device" "os error code 29: illegal seek" "os error code 30: read-only file system" "os error code 31: too many links" "os error code 32: broken pipe" "os error code 33: numerical argument out of domain" "os error code 34: numerical result out of range" "os error code 35: resource deadlock avoided" "os error code 36: file name too long" "os error code 37: no locks available" "os error code 38: function not implemented" "os error code 39: directory not empty" "os error code 40: too many levels of symbolic links" "os error code 42: no message of desired type" "os error code 43: identifier removed" "os error code 44: channel number out of range" "os error code 45: level 2 not synchronized" "os error code 46: level 3 halted" "os error code 47: level 3 reset" "os error code 48: link number out of range" "os error code 49: protocol driver not attached" "os error code 50: no csi structure available" "os error code 51: level 2 halted" "os error code 52: invalid exchange" "os error code 53: invalid request descriptor" "os error code 54: exchange full" "os error code 55: no anode" "os error code 56: invalid request code" "os error code 57: invalid slot" "os error code 59: bad font file format" "os error code 60: device not a stream" "os error code 61: no data available" "os error code 62: timer expired" "os error code 63: out of streams resources" "os error code 64: machine is not on the network" "os error code 65: package not installed" "os error code 66: object is remote" "os error code 67: link has been severed" "os error code 68: advertise error" "os error code 69: srmount error" "os error code 70: communication error on send" "os error code 71: protocol error" "os error code 72: multihop attempted" "os error code 73: rfs specific error" "os error code 74: bad message" "os error code 75: value too large for defined data type" "os error code 76: name not unique on network" "os error code 77: file descriptor in bad state" "os error code 78: remote address changed" "os error code 79: can not access a needed shared library" "os error code 80: accessing a corrupted shared library" "os error code 81: .lib section in a.out corrupted" "os error code 82: attempting to link in too many shared libraries" "os error code 83: cannot exec a shared library directly" "os error code 84: invalid or incomplete multibyte or wide character" "os error code 85: interrupted system call should be restarted" "os error code 86: streams pipe error" "os error code 87: too many users" "os error code 88: socket operation on non-socket" "os error code 89: destination address required" "os error code 90: message too long" "os error code 91: protocol wrong type for socket" "os error code 92: protocol not available" "os error code 93: protocol not supported" "os error code 94: socket type not supported" "os error code 95: operation not supported" "os error code 96: protocol family not supported" "os error code 97: address family not supported by protocol" "os error code 98: address already in use" "os error code 99: cannot assign requested address" "os error code 100: network is down" "os error code 101: network is unreachable" "os error code 102: network dropped connection on reset" "os error code 103: software caused connection abort" "os error code 104: connection reset by peer" "os error code 105: no buffer space available" "os error code 106: transport endpoint is already connected" "os error code 107: transport endpoint is not connected" "os error code 108: cannot send after transport endpoint shutdown" "os error code 109: too many references: cannot splice" "os error code 110: connection timed out" "os error code 111: connection refused" "os error code 112: host is down" "os error code 113: no route to host" "os error code 114: operation already in progress" "os error code 115: operation now in progress" "os error code 116: stale nfs file handle" "os error code 117: structure needs cleaning" "os error code 118: not a xenix named type file" "os error code 119: no xenix semaphores available" "os error code 120: is a named type file" "os error code 121: remote i/o error" "os error code 122: disk quota exceeded" "os error code 123: no medium found" "os error code 124: wrong medium type" "os error code 125: operation canceled" "os error code 126: required key not available" "os error code 127: key has expired" "os error code 128: key has been revoked" "os error code 129: key was rejected by service" "os error code 130: owner died" "os error code 131: state not recoverable"
总结
以上所述是小编给大家介绍的linux命令返回值的含义，希望对大家有所帮助
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