Exit Code: 127 1. 3. 错误原因分析 执行Linux命令返回127错误码的原因主要有两种: 命令不存在:当我们执行一个不存在的命令时,Linux系统会返回127错误码。这通常是因为我们输入的命令有误,或者所执行的命令不存在于系统的可执行路径中。 命令路径未设置:有时候,即使我们输入的命令是正确的,但由于命令的路径未正确设置,在执行命令时也会返回127
"sh","-c",cmdstring,(char*)0);_exit(127);//exec只在执行失败时才返回原有的进程}else{while(waitpid(pid,&status,0)<0){if(errno!=EINTR){status=-1;break;}}}returnstatus;//如果waitpid成功,则返回子进程的退出状态
} return 0; } 错误对照表: errno0 : Success errno1 : Operation not permitted errno2 : No such file or directory errno3 : No such process errno4 : Interrupted system call errno5 : Input/output error errno6 : No such device or address errno7 : Argument list too long errno8 : Exec fo...
printf("errno : %5d , error : %s\n", err, strerror(err)); } void showAllErr() { int i = 0; for(;i < 256; i++) { showError(i); } } int main(int argc, char * argv[]) { showAllErr(); return 0; } 2、运行上面代码,结果如下 errno : 0 , error : Success errno : ...
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return0;}intmy_system(constchar*command){pid_t pid;intstatus;if(command==NULL)return1;if((pid=fork())<0)status=-1;elseif(pid==0){execl("/bin/sh","sh","-c",command,NULL);exit(127);}else{while(waitpid(pid,&status,0)<0){if(errno==EINTR)continue;status=-1;break;}}return...
int main(int argc, char ** argv) { int i = 0; for(i = 0; i < 256; i++) printf("errno.%02d is: %s\n", i, strerror(i)); return 0; } 编译此程序用命令: gcc -Wall strerror.c 执行程序: ./a.out 输出如下: errno.00 is: Success ...
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## Return codes:# 0 success# 1 incorrect invocationimportjsonimportsysdefComposeAdUserName(domainName, userName):""" Examples: composedUserName = "{0}@{1}".format(userName, domainName), when using userName@domainName """composedUserName ="{0}.{1}".format(domainName, userName)returncomposed...
(x_bootmem);unsigned long x_bootmem_size=0;EXPORT_SYMBOL(x_bootmem_size);staticint __initx_bootmem_setup(char*str){x_bootmem_size=memparse(str,&str);x_bootmem=alloc_bootmem(x_bootmem_size);printk("Reserved %lu bytes from %p for x\n",x_bootmem_size,x_bootmem);return1;}__...