Linux
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How to background a process: 2-Minute Linux Tips
In this Linux tip, learn how you can move a running task into the background and what that means. Once you use the bg command, you have the ability to run other commands.
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How to use the lsof command: 2-Minute Linux Tips
In this Linux tip, learn how to use the lsof (list open files) command. To properly list all open files, you should use sudo. Otherwise you’re likely to run into a lot of Permission Denied warnings.
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How to use apparmor: 2-Minute Linux Tips
In this Linux tip, learn about apparmor. It’s a security module that runs by default on certain Linux systems – like newer Ubuntu and Debian. Apparmor enforces restrictions using file system paths while SELinux applies security labels...
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How to use the wget command: 2-Minute Linux Tips
In this Linux tip, learn the wget command. It makes downloading pages from web sites – even recursively – very easy. Keep in mind that this command downloads whatever html code defines the page.
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How to use the du command: 2-Minute Linux Tips
In this Linux tip, we’re going to look at the du command that reports on disk usage – whether individual files or directories.
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How to use the split command: 2-Minute Linux Tips
In this Linux tip, we’re going to look at the split command that breaks files into pieces --according to your instructions if you like -- and gives the pieces sequential names.
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How to use the date command: 2-Minute Linux Tips
In this Linux tip, learn how to use the date command. In its simplest form, it provides the date and time in a nice format, including the time zone.
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How to use the bmon command: 2-Minute Linux Tips
In this Linux tip, learn how to use the bmon command. It’s a graphical tool for looking at network bandwidth.
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How to use the uniq command: 2-Minute Linux Tips
In this Linux tip, learn how to use the uniq command. It’s a command that’s very useful when you want to reduce or summarize information.
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How to use the screen command: 2-Minute Linux Tips
In this Linux tip, learn how to use the screen command. It's a command that allows you to detach an SSH session and then reconnect to it.
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How to use the tee command: 2-Minute Linux Tips
In this Linux tip, learn how to use the tee command. It’s a very simple command that allows you to run some other command and send its output both to the screen and to a file at the same time.
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How to use the who command: 2-Minute Linux Tips
In this Linux tip, learn how to use the who command. It will show you details regarding who is logged in and about the system.
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How to use the expr command: 2-Minute Linux Tips
Learn the expr command. It allows you to do mathematical calculations on the command line.
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How to use the ac command: 2-Minute Linux Tips
Learn how to use the ac command. It reports on user login times, so if you’re interested in knowing how much time various users are spending on a Linux server, this command is a good choice.
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How to use the sudo command: 2-Minute Linux Tips
Learn how to use the sudo command. It’s a very important command for Linux security because it provides a way for individual users to run specific commands with the authority of root.
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How to use the env command: 2-Minute Linux Tips
Learn how to use the env command. The most useful thing it does is to provide information on your shell environment when you’re working on the Linux command line.
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How to use the touch command: 2-Minute Linux Tips
In this Linux tip, learn how to use the touch command. It allows you to create an empty file or update a file’s last updated date/time settings.
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How to use the wc command: 2-Minute Linux Tips
Learn the wc command. It provides an easy way to count the lines, words and characters in a file or in output from some other command.
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