Tcsh
| TENEX C Shell | |
|---|---|
| Screenshot of a sample tcsh session | |
| Developer(s) | Ken Greer, Paul Placeway, Christos Zoulas, et al. | 
| Stable release | 6.24.15 
   / 4 February 2025 | 
| Repository | https://cvsweb.netbsd.org/bsdweb.cgi/src/bin/csh/ | 
| Written in | C | 
| Operating system | Cross-platform | 
| Type | Unix shell | 
| License | 2002: BSD-3-Clause 1991: BSD-4-Clause | 
| Website | www | 
tcsh (/ˌtiːˈsiːʃɛl/ “tee-see-shell”, /ˈtiːʃɛl/ “tee-shell”, or as “tee see ess aitch”, tcsh) is a Unix shell based on and backward compatible with the C shell (csh).