1、Shell版
#获取当前脚本所在绝对路径 cur_dir=$(cd "$(dirname "$0")"; pwd)
char current_absolute_path[MAX_SIZE]; //获取当前目录绝对路径 if (NULL == realpath("./", current_absolute_path)) { printf("***Error***\n"); exit(-1); } strcat(current_absolute_path, "/"); printf("current absolute path:%s\n", current_absolute_path);
方法二:用getcwd函数。这种方法用于开机启动程序获取自身目录会出错。
char current_absolute_path[MAX_SIZE]; //获取当前目录绝对路径 if (NULL == getcwd(current_absolute_path, MAX_SIZE)) { printf("***Error***\n"); exit(-1); } printf("current absolute path:%s\n", current_absolute_path);
方法三:用readlink函数。这种方法最可靠,可用于开机启动程序获取自身目录。
char current_absolute_path[MAX_SIZE]; //获取当前程序绝对路径 int cnt = readlink("/proc/self/exe", current_absolute_path, MAX_SIZE); if (cnt < 0 || cnt >= MAX_SIZE) { printf("***Error***\n"); exit(-1); } //获取当前目录绝对路径,即去掉程序名 int i; for (i = cnt; i >=0; --i) { if (current_absolute_path[i] == '/') { current_absolute_path[i+1] = '\0'; break; } } printf("current absolute path:%s\n", current_absolute_path);