1、命令行實現(xiàn)：轉(zhuǎn)自：http://www.linuxdiyf.com/viewarticle.php?id=84177

#!/bin/sh

cur_dir=$(pwd)

echo $cur_dir

注意：在cur_dir后沒空格，=后面也不能有空格，不然它會認(rèn)為空格不是路徑而報錯

?

2、程序?qū)崿F(xiàn)：轉(zhuǎn)自：http://topic.csdn.net/u/20071217/13/78e81ffa-b30c-4685-a58a-2eb5e181b825.html

#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>

int getpath(char *buf)
{
?????? long size;
?????? char *ptr;
?????? size = pathconf(".",_PC_PATH_MAX);
?????? if((ptr = (char*)malloc((size_t)size)) != NULL)
?????? {
????????????? memset(ptr,0,size);
????????????? sprintf(ptr,"/proc/%d/exe",getpid());
?????? }

?????? else

???????????? return -1;

?????? return readlink(ptr,buf,size);
}

int main()
{
?????? char buf[128];
?????? getpath(buf);
?????? printf("%s\n",buf);
}

?

轉(zhuǎn)自：http://hi.baidu.com/jrckkyy/blog/item/6f74ebee3b4768e3b3fb9542.html

http://hi.baidu.com/xlt1888/blog/item/0958fd86668b73cc9123d99f.html

?

#include <unistd.h>
#include <stdio.h>

int main(int argc , char* argv[])
{
???????? char buf[1024] = { 0 };
???????? int n=0;

???????? n =readlink("/proc/self/exe" , buf , sizeof(buf));
???????? if( n > 0 && n < (int)sizeof(buf))
???????? {

?????????????????? Buf[n]= ‘\0’;
?????????????????? printf("%s\n", buf);
???????? }
}

?

還可以利用getcwd函數(shù)來實現(xiàn)。