[TUHS] UNIX Backslash History

Doug McIlroy doug at cs.dartmouth.edu
Mon Oct 28 06:31:28 AEST 2019

> What is the special meaning of using / as directory partition in UNIX? And \ as  the escape character.

\ came from Multics. The first day Multics ran at Bell Labs Bob Morris
famously typed backslash-newline at the login prompt and crashed the

Multics had a hierarchical file system, too, but I don't recall how
pathnames were punctuated.


More information about the TUHS mailing list