tcsh
| TENEX C Shell | |
|---|---|
 Screenshot of a sample tcsh session | |
| Developers | Ken Greer, Paul Placeway, Christos Zoulas, et al. |
| Stable release | 6.24.16 
/ 9 July 2025 |
| Written in | C |
| Operating system | Cross-platform |
| Predecessor | C shell |
| Type | Unix shell |
| License | 2002: BSD-3-Clause 1991: BSD-4-Clause |
| Website | www |
| Repository | |
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).