unix bsd

cat command

I am a new Linux and Unix system user. How do I use cat command on Linux or Unix-like operating systems? Can you provide basic examples and syntax usage for cat command?

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What is a tty under Linux / UNIX? How do I find out what tty I’m on?

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How do I display my current path settings under Linux / FreeBSD / OpenBSD / NetBSD / Apple OS X / UNIX like operating systems using bash or ksh or csh / tcsh shell?

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How do I execute a script on remote server called server2.example.com from my PC? How to run a shell/python/perl script on remote Unix-like systems?

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How do I find the largest top files and directories on a Linux or Unix like operating systems?

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How do I delete a file under Linux / UNIX / BSD / AIX / HP-UX operating system?

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