/dev/stdin, stdout, stderr

1 개요

/dev/stdin, /dev/stdout, /dev/stderr

• 표준스트림 특수 파일

/dev/stdin	표준입력
/dev/stdout	표준출력
/dev/stderr	표준에러

[root@zetawiki ~]# ll /dev/std*
lrwxrwxrwx 1 root root 15 Nov 21  2013 /dev/stderr -> /proc/self/fd/2
lrwxrwxrwx 1 root root 15 Nov 21  2013 /dev/stdin -> /proc/self/fd/0
lrwxrwxrwx 1 root root 15 Nov 21  2013 /dev/stdout -> /proc/self/fd/1

[root@zetawiki ~]# ll /proc/self/fd/[0-2]
lrwx------ 1 root root 64 Jul 13 09:34 /proc/self/fd/0 -> /dev/pts/0
lrwx------ 1 root root 64 Jul 13 09:34 /proc/self/fd/1 -> /dev/pts/0
lrwx------ 1 root root 64 Jul 13 09:34 /proc/self/fd/2 -> /dev/pts/0

[root@zetawiki ~]# tty
/dev/pts/0

2 같이 보기

• 표준스트림
• tty
• mknod
• /proc/self/fd

3 참고

• http://unix.stackexchange.com/questions/18239/understanding-dev-and-its-subdirs-and-files