FM / attr

/proc/7/attr

Name	Size	Mode	Actions
current	0	0666	edit dl rm
exec	0	0666	edit dl rm
fscreate	0	0666	edit dl rm
keycreate	0	0666	edit dl rm
prev	0	0444	edit dl rm
sockcreate	0	0666	edit dl rm

Edit: /proc/7/attr/prev (0B)

cmd: