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| tab | Changes spaces into tabs. |
| tabs | Sets tab stops on terminals. |
| tail | Writes a file to standard output, beginning at a specified point. |
| talk | Converse with another user. |
| talkd | Provides the server function for the talk command. |
| tapechk | Performs consistency checking on the streaming tape device. |
| tar | Manipulates archives. |
| tbl | Formats tables for the nroff and troff commands. |
| tc | Interprets text into the troff command output for the Tektronix 4015 system. |
| tcbck | Audits the security state of the system. |
| tcopy | Copies a magnetic tape. |
| tcpdump | Prints out packet headers. |
| tctl | Gives subcommands to a streaming tape device. |
| tdigest | Converts the terms files. |
| tee | Displays the output of a program and copies it into a file. |
| telinit | Initializes and controls processes. |
| telnet | Connects the local host with a remote host, using the TELNET interface. |
| telnetd | Provides the server function for the TELNET protocol. |
| termdef | Queries terminal characteristics. |
| test | Evaluates conditional expressions. |
| tftp | Transfers files between hosts using the Trivial File Transfer Protocol (TFTP). |
| tftpd | Provides the server function for the Trivial File Transfer Protocol. |
| tic | Translates the terminfo descriptor files from source to compiled format. |
| time | Prints the time of the execution of a command. |
| timed | Invokes the time server daemon at system startup time. |
| timedc | Returns information about the timed daemon. |
| timex | Reports, in seconds, the elapsed time, user time, and system execution time for a command. |
| tip | Connects to a remote system. |
| tn | Connects the local host with a remote host, using the TELNET interface. |
| tn3270 | Connects the local host with a remote host using the TELNET interface. |
| tokstat | Shows token-ring device driver and device statistics. |
| touch | Updates the access and modification times of a file. |
| tprof | Reports CPU usage. |
| tput | Queries the terminfo descriptor files in the terminfo database. |
| tr | Translates characters. |
| trace | Records selected system events. |
| tracesoff | Turns off tracing of a subsystem, a group of subsystems, or a subserver. |
| traceson | Turns on tracing of a subsystem, a group of subsystems, or subserver. |
| traceroute | Prints the route that IP packets take to a network host. |
| trbsd (BSD) | Translates characters. |
| trcdead | Extract the trace buffer from a system dump image. |
| trcnm | Generates a kernel name list. |
| trcrpt | Formats a report from the trace log. |
| trcstop | Stops the trace function. |
| trcupdate | Adds, replaces, or deletes trace report format templates. |
| troff | Formats text for printing on typesetting devices. |
| trpt | Performs protocol tracing on TCP sockets. |
| true | Returns an exit value of zero (true). |
| tset | Initializes terminals. |
| tsh | Interprets commands in a trusted shell. |
| tsm | Provides terminal state management. |
| tsort | Sorts an unordered list of ordered pairs (a topological sort). |
| ttt | Starts the tic-tac-toe game. |
| tty | Writes to standard output the full path name of your terminal. |
| turnacct | Provides an interface to the accton command to turn process accounting on or off. |
| turnoff | Sets the permission codes off for files in the /usr/games directory. |
| turnon | Sets permission codes on for files in the /usr/games directory. |
| tvi | Provides a trusted editor with a full-screen display. |
| twconvdict | Converts other user dictionary to the AIX user dictionary. This command only applies to AIX Version 4.2 or higher. |
| twconvfont | Converts other font files to a BDF font file. This command only applies to AIX Version 4.2 or higher. |
| type | Writes a description of the command type. |
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