❶ 谁能用C给写个在linux下,遍历当前目录下的
UNIX环境高级编程,或者LINUX程序设计里头都有这个例子。
从《LINUX程序设计第二版》当中找了个print2.c的代码给你
/* We start with the appropriate headers and then a function, printdir,
which prints out the current directory.
It will recurse for subdirectories, using the depth parameter is used for indentation. */
#include <unistd.h>
#include <stdio.h>
#include <dirent.h>
#include <string.h>
#include <sys/stat.h>
void printdir(char *dir, int depth)
{
DIR *dp;
struct dirent *entry;
struct stat statbuf;
if((dp = opendir(dir)) == NULL) {
fprintf(stderr,"cannot open directory: %s\n", dir);
return;
}
chdir(dir);
while((entry = readdir(dp)) != NULL) {
lstat(entry->d_name,&statbuf);
if(S_ISDIR(statbuf.st_mode)) {
/* Found a directory, but ignore . and .. */
if(strcmp(".",entry->d_name) == 0 ||
strcmp("..",entry->d_name) == 0)
continue;
printf("%*s%s/\n",depth,"",entry->d_name);
/* Recurse at a new indent level */
printdir(entry->d_name,depth+4);
}
else printf("%*s%s\n",depth,"",entry->d_name);
}
chdir("..");
closedir(dp);
}
/* Now we move onto the main function. */
int main(int argc, char* argv[])
{
char *topdir, pwd[2]=".";
if (argc != 2)
topdir=pwd;
else
topdir=argv[1];
printf("Directory scan of %s\n",topdir);
printdir(topdir,0);
printf("done.\n");
exit(0);
}
❷ linux c怎么获取进程信息 当前目录
//获取当前进程名(进程目录在函数内已获取到)
boolGetLocalProgramName(char*processname)
{
charprocessdir[1024]={0};
char*path_end;
size_tlen=1024;
boolret=false;
do
{
if(readlink("/proc/self/exe",processdir,len)<=0)
{
fprintf(stderr,"[ERROR]cannotgetprocessname ");
break;
}
path_end=strrchr(processdir,'/');//进程目录
if(path_end==NULL)
{
fprintf(stderr,"[ERROR]cannotparseprocessname ");
break;
}
++path_end;
*path_end='