![]() The tr command | |
Original author(s) | Douglas McIlroy (AT&T Bell Laboratories) |
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Developer(s) | Various open-source and commercial developers |
Initial release | November 1973 |
Repository | |
Written in | C |
Operating system | Unix, Unix-like, Plan 9, Inferno, OS-9, MSX-DOS, IBM i |
Platform | Cross-platform |
Type | Command |
License | coreutils: GPLv3+ Plan 9: MIT License |
tr is a command in Unix, Plan 9, Inferno, and Unix-like operating systems. It is an abbreviation of translate or transliterate, indicating its operation of replacing or removing specific characters in its input data set.