[readlink 獲取當前進程對應proc/self/exe]
shell中 readlink /proc/self/exe
READLINK(2)
NAME
readlink - read value of a symbolic link
SYNOPSIS
#include <unistd.h>
ssize_t readlink(const char *path, char *buf, size_t bufsiz);
NAME
readlink - read value of a symbolic link
SYNOPSIS
#include <unistd.h>
ssize_t readlink(const char *path, char *buf, size_t bufsiz);