Linux Basics - Revision history

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orig>Wiki admin at 12:54, 3 November 2020

2020-11-03T12:54:06Z

orig>Wiki admin at 12:51, 3 November 2020

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orig>Wiki admin at 12:45, 3 November 2020

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orig>Wiki admin at 12:19, 3 November 2020

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orig>Wiki admin at 17:45, 2 November 2020

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orig>Wiki admin at 17:35, 2 November 2020

2020-11-02T17:35:25Z

orig>Wiki admin at 15:06, 2 November 2020

2020-11-02T15:06:02Z

@@ Line 86: / Line 86: @@
 <br>
 For example, if we want to rename the file “text” to “new”, we can use “mv text new”. It takes the two arguments, just like the cp command.
 <br>
-This command is useful when you don't know where a file is saved or the actual name of the file. Using the -i argument with the command helps to ignore the case (it doesn't matter if it is uppercase or lowercase).
+[[File:Mv-example.png|none|left]]
 <br>

@@ Line 80: / Line 80: @@
 <br>
 . '''cp''' — Use the cp command to copy files through the command line. It takes two arguments: The first is the location of the file to be copied, the second is where to copy.
+<br>
 . '''mv''' — Use the mv command to move files through the command line. We can also use the mv command to rename a file.
 <br>

@@ Line 73: / Line 73: @@
 . '''man & --help''' — To know more about a command and how to use it, use the man command. It shows the manual pages of the command.
 <br>
-For example, “man cd” shows the manual pages of the cd command. Typing in the command name and the argument helps it show which ways the command can be used (e.g., cd –help).
+For example, “man touch” shows the manual pages of the touch command. Typing in the command name and the argument helps it show which ways the command can be used (e.g., cd –help).
 <br>
 [[File:Help-example.png|none|left]]

@@ Line 74: / Line 74: @@
 <br>
 For example, “man cd” shows the manual pages of the cd command. Typing in the command name and the argument helps it show which ways the command can be used (e.g., cd –help).
+<br>
 . '''cp''' — Use the cp command to copy files through the command line. It takes two arguments: The first is the location of the file to be copied, the second is where to copy.

@@ Line 68: / Line 68: @@
 <br>
 . '''touch''' — The touch command is used to create a file. It can be anything, from an empty txt file to an empty zip file. For example, “touch new.txt”.
+<br>
 . '''man & --help''' — To know more about a command and how to use it, use the man command. It shows the manual pages of the command.
 <br>

← Older revision	Revision as of 08:33, 5 April 2022
(No difference)

@@ Line 64: / Line 64: @@
 <br>
 It deletes both the folder and the files it contains when using only the rm command.
+<br>
 . '''touch''' — The touch command is used to create a file. It can be anything, from an empty txt file to an empty zip file. For example, “touch new.txt”.

@@ Line 38: / Line 38: @@
 <br>
 [[File:Pwd-Example3.png|none|left]]
 . '''ls''' — Use the "ls" command to know what files are in the directory you are in. You can see all the hidden files by using the command “ls -a”.
 <br>
 [[File:Ls-example.png|none|left]]
 . '''cd''' — Use the "cd" command to go to a directory. For example, if you are in the home folder, and you want to go to the downloads folder, then you can type in “cd Downloads”.
 <br>
@@ Line 48: / Line 50: @@
 <br>
 To go back from a folder to the folder before that, you can type “cd ..” . The two dots represent back.
 [[File:Cd-example.png|none|left]]
 . '''mkdir & rmdir''' — Use the mkdir command when you need to create a folder or a directory.
 <br>
 For example, if you want to make a directory called “DIY”, then you can type “mkdir DIY”.
 <br>
-Remember, as told before, if you want to create a directory named “DIY Hacking”, then you can type “mkdir DIY\ Hacking”. Use rmdir to delete a directory.
+Use rmdir to delete a directory.But rmdir can only be used to delete an empty directory. To delete a directory containing files, use rm.
 <br>
 . '''rm''' - Use the rm command to delete files and directories.  Use "rm -r" to delete just the directory.
 <br>

@@ Line 36: / Line 36: @@
 <br>
 It is denoted by a forward slash( / ). The user directory is usually something like "/home/username".
+<br>
 . '''ls''' — Use the "ls" command to know what files are in the directory you are in. You can see all the hidden files by using the command “ls -a”.
+<br>
 . '''cd''' — Use the "cd" command to go to a directory. For example, if you are in the home folder, and you want to go to the downloads folder, then you can type in “cd Downloads”.
 <br>
-Remember, this command is case sensitive, and you have to type in the name of the folder exactly as it is. But there is a problem with these commands.
+Remember, this command is case sensitive, and you have to type in the name of the folder exactly as it is.
 <br>
-Here, you can use a backward slash. That is, you can use “cd Raspberry\ Pi” in this case.
+If you just type “cd” and press enter, it takes you to the home directory.
 <br>
 To go back from a folder to the folder before that, you can type “cd ..” . The two dots represent back.
+[[File:Cd-example.png|none|left]]
 . '''mkdir & rmdir''' — Use the mkdir command when you need to create a folder or a directory.
 <br>

← Older revision		Revision as of 15:06, 2 November 2020
Line 36:		Line 36:
	<br>		<br>
	It is denoted by a forward slash( / ). The user directory is usually something like "/home/username".		It is denoted by a forward slash( / ). The user directory is usually something like "/home/username".
		+
		+	2. '''ls''' — Use the "ls" command to know what files are in the directory you are in. You can see all the hidden files by using the command “ls -a”.
		+
		+	3. '''cd''' — Use the "cd" command to go to a directory. For example, if you are in the home folder, and you want to go to the downloads folder, then you can type in “cd Downloads”.
		+	<br>
		+	Remember, this command is case sensitive, and you have to type in the name of the folder exactly as it is. But there is a problem with these commands.
		+	<br>
		+	Imagine you have a folder named “Raspberry Pi”. In this case, when you type in “cd Raspberry Pi”, the shell will take the second argument of the command as a different one,
		+	<br>
		+	so you will get an error saying that the directory does not exist.
		+	<br>
		+	Here, you can use a backward slash. That is, you can use “cd Raspberry\ Pi” in this case.
		+	Spaces are denoted like this: If you just type “cd” and press enter, it takes you to the home directory.
		+	<br>
		+	To go back from a folder to the folder before that, you can type “cd ..” . The two dots represent back.
		+
		+	4. '''mkdir & rmdir''' — Use the mkdir command when you need to create a folder or a directory.
		+	<br>
		+	For example, if you want to make a directory called “DIY”, then you can type “mkdir DIY”.
		+	<br>
		+	Remember, as told before, if you want to create a directory named “DIY Hacking”, then you can type “mkdir DIY\ Hacking”. Use rmdir to delete a directory.
		+	<br>
		+	But rmdir can only be used to delete an empty directory. To delete a directory containing files, use rm.
		+
		+	5. '''rm''' - Use the rm command to delete files and directories. Use "rm -r" to delete just the directory.
		+	<br>
		+	It deletes both the folder and the files it contains when using only the rm command.
		+
		+	6. '''touch''' — The touch command is used to create a file. It can be anything, from an empty txt file to an empty zip file. For example, “touch new.txt”.
		+
		+	7. '''man & --help''' — To know more about a command and how to use it, use the man command. It shows the manual pages of the command.
		+	<br>
		+	For example, “man cd” shows the manual pages of the cd command. Typing in the command name and the argument helps it show which ways the command can be used (e.g., cd –help).
		+
		+	8. '''cp''' — Use the cp command to copy files through the command line. It takes two arguments: The first is the location of the file to be copied, the second is where to copy.
		+
		+	9. '''mv''' — Use the mv command to move files through the command line. We can also use the mv command to rename a file.
		+	<br>
		+	For example, if we want to rename the file “text” to “new”, we can use “mv text new”. It takes the two arguments, just like the cp command.
		+
		+	10. '''locate''' — The locate command is used to locate a file in a Linux system, just like the search command in Windows.
		+	<br>
		+	This command is useful when you don't know where a file is saved or the actual name of the file. Using the -i argument with the command helps to ignore the case (it doesn't matter if it is uppercase or lowercase).
		+	<br>
		+	So, if you want a file that has the word “hello”, it gives the list of all the files in your Linux system containing the word "hello" when you type in “locate -i hello”. If you remember two words,
		+	<br>
		+	you can separate them using an asterisk (). For example, to locate a file containing the words "hello" and "this", you can use the command “locate -i hello*this”.