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tcsh:tldr:60dcd
"tcsh" stands for "TENEX C Shell" and it is a Unix command shell or a command line interpreter for Unix-like operating systems. It is an enhanced version of the C Shell (csh).
The "tcsh" command starts a new shell process with tcsh as the command interpreter. Once started, tcsh provides a command line interface where you can execute commands, run scripts, and perform various shell operations.
Some of the key features of tcsh include:
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Command history: tcsh keeps track of previously executed commands, allowing you to recall and reuse them using the arrow keys or specific commands.
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Tab completion: By pressing the Tab key, tcsh can complete partially typed commands or suggest available options or files.
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Job control: tcsh allows you to manage background processes, pause, resume, or terminate them, and switch between running tasks using job control commands.
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Command aliasing: tcsh lets you create custom command shortcuts called aliases, simplifying the execution of frequently used commands.
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Command scripting: Like other shells, tcsh allows you to write shell scripts containing a series of commands to automate tasks or perform complex operations.
By running the "tcsh" command, you open a new shell session with tcsh as the interpreter, providing you with an interactive environment to navigate the file system, execute commands, and perform various shell-related tasks.