| Index Entry | Section |
|---|
|
| T | | |
|---|
| tabn | 8.2.3 Output settings |
| tabs | 8.2.5 Combination settings |
| tandem | 8.2.2 Input settings |
| tee | 6.1 tee: Redirect output to multiple files |
| TERM | 11.5 su: Run a command with substitute user and group id |
| terminal check | 5.3.1 File type tests |
| terminal file name, printing | 8.4 tty: Print file name of terminal on standard input |
| terminal lines, currently used | 9.6 who: Print who is currently logged in |
| terminal settings | 8.2 stty: Print or change terminal characteristics |
| test | 5.3 test: Check file types and compare values |
| text, displaying | 4.1 echo: Print a line of text |
| this in date strings | 3.6 Relative item in date strings |
| time | 8.2.7 Special settings |
| time directives | 10.1.1 Time directives |
| time formats | 10.1 date: Print or set system date and time |
| time of day item | 3.3 Time of day item |
| time setting | 10.1.5 Setting the time |
| time units | 12.1 sleep: Delay for a specified time |
| time zone correction | 3.3 Time of day item |
| time zone item | 3.4 Time zone item |
| time, printing or setting | 10.1 date: Print or set system date and time |
| today in date strings | 3.6 Relative item in date strings |
| tomorrow | 10.1.6 Options for date |
| tomorrow in date strings | 3.6 Relative item in date strings |
| tostop | 8.2.4 Local settings |
| true | 5.2 true: Do nothing, successfully |
| tty | 8.4 tty: Print file name of terminal on standard input |
| Twenex | Why GNU su does not support the `wheel' group |
| two-way parity | 8.2.1 Control settings |
|
| U | | |
|---|
| u, and disabling special characters | 8.2.6 Special characters |
| uname | 10.2 uname: Print system information |
| Universal Coordinated Time | 3.4 Time zone item |
| Universal Time (Coordinated) | 3.4 Time zone item |
| uppercase, translating to lowercase | 8.2.2 Input settings |
| USER | 11.5 su: Run a command with substitute user and group id |
| user id, switching | 11.5 su: Run a command with substitute user and group id |
| user information, commands for | 9. User information |
| user name, printing | 9.2 logname: Print current login name |
| usernames, printing current | 9.5 users: Print login names of users currently logged in |
| users | 9.5 users: Print login names of users currently logged in |
| utilities for shell programming | |
| utmp | 9.2 logname: Print current login name |
|
| V | | |
|---|
| valid file names, checking for | 7.3 pathchk: Check file name portability |
| version number, finding | 2. Common options |
| version of operating system | 10.2 uname: Print system information |
| vtn | 8.2.3 Output settings |
|
| W | | |
|---|
| week in date strings | 3.6 Relative item in date strings |
| werase | 8.2.6 Special characters |
| wheel group, not supported | 11.5 su: Run a command with substitute user and group id |
| who | 9.6 who: Print who is currently logged in |
| who am i | 9.6 who: Print who is currently logged in |
| whoami | 9.3 whoami: Print effective user id |
| working context | 8. Working context |
| working directory, printing | 8.1 pwd: Print working directory |
| writable file check | 5.3.2 Access permission tests |
| write, allowed | 9.6 who: Print who is currently logged in |
|
| X | | |
|---|
| xcase | 8.2.4 Local settings |
| XON/XOFF flow control | 8.2.2 Input settings |
|
| Y | | |
|---|
| year in date strings | 3.6 Relative item in date strings |
| yes | 4.3 yes: Print a string until interrupted |
| yesterday | 10.1.6 Options for date |
| yesterday in date strings | 3.6 Relative item in date strings |
|
| Z | | |
|---|
| zero-length string check | 5.3.4 String tests |
|
