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- sys break
- sys cemt
- sys chdir
- sys chmod
- sys chown
- sys close
- sys creat
- sys exec
- sys exit
- sys fork
- sys fstat
- sys getuid
- sys gtty
- sys ilgins
- sys intr
- sys link
- sys mkdir
- sys mount
- sys open
- sys quit
- sys read
- sys rele
- sys seek
- sys setuid
- sys smdate
- sys stat
- sys stime
- sys stty
- sys tell
- sys time
- sys umount
- sys unlink
- sys wait
- sys write