python中调用linux命令及os.system的返回值

ゝ一世哀愁。 2022-11-10 03:59 691阅读 0赞

使用os.system(cmd)即可在python中使用linux命令。

示例：

在aa文件夹下创建了bb,cc两个文件夹，并且用ls展示出来。

\#coding = utf-8  
import os  
path = '/root/Download/dir/'  
pathb = '\{\}\{\}'.format(path,'bb')  
pathc = '\{\}\{\}'.format(path,'cc')  
   
if not os.path.exists(pathb):  
    os.system("mkdir \{\}".format(pathb))  
   
if not os.path.exists(pathc):  
    os.system("mkdir \{\}".format(pathc))  
   
os.system(path)  
结果：

2.os.system(cmd)的返回值。

如果执行成功，那么会返回0，表示命令执行成功。

\#coding = utf-8  
import os  
path = '/root/Downloads/dir/'  
   
if os.system("ls \{\}".format(path)) == 0:  
    print("return 0 represent success!")

否则，则是执行错误，有以下几种错误分类：

"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"

错误分类参考博客：http://xingyunbaijunwei.blog.163.com/blog/static/76538067201341342330373/  
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原文链接：https://blog.csdn.net/lwgkzl/article/details/81060016