Open file bash linux

doctor Brain

Иногда, работая в терминале, возникает необходимость открыть какой-либо файл. Но при этом нет никакого желания возвращаться в менеджер файлов операционной системы (для MacOS — это Finder), искать путь к файлу и открывать или запускать его с помощью программы, предназначенной для взаимодействия с нужным нам файлом по умолчанию. Это долго и утомительно.

К счастью в терминале есть команда open , которая позволит нам открыть файл в UNIX-подобной операционной системе (в том числе в MacOS и Linux).

В простейшем виде синтаксис этой команды выглядит так:

После команды через пробел указывается относительный или абсолютный путь к открываемому файлу.

Таким же образом можно открыть и сайт, указав его адрес:

А еще с помощью команды open можно открыть менеджер файлов операционной системы (для MacOS — это Finder) из текущей директории. В этом случае используется специальный символ . (точка):

Менеджер файлов можно открыть и для родительской директории. В таком случае нужно использовать две точки .. :

Чтобы сменить программу, в которой необходимо открыть файл, необходимо воспользоваться опцией -a :

Остальные опции и возможности команды open можно просмотреть из консоли с помощью команды:

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How to open the file in bash

The file is used to store the data permanently and use the data in any script when requires. A file can be opened for reading, writing, or appending. Many bash commands exist to open a file for reading or writing, such as `cat`, `less`, `more` etc. Any text editor can be used to open a file in bash. nano, vim, vi, etc., an editor is used to open a file from the terminal. Many GUI editors also exist in Linux to open a file, such as Gedit, Geany, etc. The file can be opened for reading or writing by using bash script also. The ways to open a file for various purposes have been shown in this tutorial.

Open file using Bash commands:

The uses of shell commands to open a file for creating or reading are shown in this tutorial. The uses of `cat`, `less`, and `more` commands have shown here.

Use of `cat` command:

The `cat` is a very useful command of bash to create or display the file’s content. Any file type can be created easily and quickly by opening the file using the `cat` command with the ‘>’ symbol. Run the following `cat` command to open a file named file1.txt for writing. If the filename already exists, then the previous content of the file will be overwritten by the new content; otherwise, a new file will be created.

Add the following content to the file.

A bash script is a command-line interpreted language.
Many automated tasks can be done easily using a bash script.

Press Ctrl+D to finish the writing task. The following output will appear after creating the file.

Now, run the following `cat` command to open the file.txt file for reading.

The following output will appear after executing the above command.

Use of `less` command:

The `less` command is used to open a file for reading only. It is mainly used to read the content of the large file. The user can move backward or forward through the file by using this command. It works faster than other text editors.

Run the following command to open the file1.txt file for reading. Here, the content of the file is very small. So when the user presses the enter key, then the content will go upward. Press the character ‘q’ to return to the command prompt.

The following output will appear after opening the file using the `less` command and pressing the enter key.

Use of `more` command:

Like the `less` command, the `more` command is used to open a large file for reading only. This command is mainly used to read a file’s large content in multiple pages to help the readers read long files.

Run the following command to open the file1.txt file for reading by using the `more` command. It is a small file. So all content of the file has displayed on one page.

The following output will appear after opening the file using the `more` command.

Open file using command-line editors:

The uses of vi and nano command-line editors for opening the file to create and read have been shown in this part of this tutorial.

Use of vi editors:

One of the popular text editors of Linux is vi editors. It is installed on Ubuntu by default. The user can easily create, edit, and view any file by using this text editor. The advanced version of vi editors is called vim editor, which is not installed by default. This part of the tutorial shows how to use vi editor to open a file for creating and reading. Run the following command to open the file2.txt file for writing.

You have to press the character ‘i’ to start writing into the vi editor. Add the following content to the file.

Writing a file using vi editors.

You can do any of the following tasks after writing the content of the file.

1. Type :wq to quit the editor after saving the file.
2. Type :w to keep the file open in the editor after saving.
3. Type :q to quit the editor without saving the file.

The following output shows that ‘:wq’ has been typed to quit the editor after saving the file.

Run the following command to open the file2.txt file and check the content exists or not that was added in the file.

The following output shows that the file contains the data that was added before. Here,’:’ has typed to quit the editor.

Use of nano editor:

Another useful and popular editor of Linux is the nano editor that is used to open a file for writing and reading. It is easier to use than the vi editor and more user-friendly than other command-line editors. Run the following command to open the file3.txt file for writing using nano editor.

Add the following content to the file.

Writing a file using nano editor.

If you type Ctrl+X after adding the content to the file, it will ask you to save the file. The following output will appear if you press the character, ‘y’. Now, press the enter to quit the editor after saving the file.

Open file using GUI text editor:

The ways to use gedit and geany GUI-based text editor have shown in the part of this tutorial.

Use of gedit editor:

The gedit is mostly used GUI-based text editor that is installed by default on maximum Linux distributions. Multiple files can be opened by using this editor. Run the following command the open the existing file1.txt file using gedit editor.

The following output will appear after executing the command.

Use of geany editor:

Geany is a more powerful GUI-based editor than the gedit editor, and you have to install it to use it. It can be used to write code for many types of programming languages. Run the following command to install the geany editor.

After installing the editor, run the following command to open the file1.txt file.

The following output will appear after executing the command.

Conclusion:

Many ways to open a file for reading or writing have been shown in this tutorial by using bash command, command-line editors, and GUI-based editors. The Linux users can select any of the ways mention here to open a file in bash.

About the author

Fahmida Yesmin

I am a trainer of web programming courses. I like to write article or tutorial on various IT topics. I have a YouTube channel where many types of tutorials based on Ubuntu, Windows, Word, Excel, WordPress, Magento, Laravel etc. are published: Tutorials4u Help.

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bash open file

To open a bash file for editing (something with an . sh suffix) you can use a text editor like nano. If you want to run a bash script you can do it in several ways.

How do I open a file in Terminal?

1. Open the file using cat command.
2. Open the file using less command.
3. Open the file using more command.
4. Open the file using nl command.
5. Open the file using gnome-open command.
6. Open the file using head command.
7. Open the file using tail command.

How do I open bash in terminal?

To check for Bash on your computer, you can type “bash” into your open terminal, like shown below, and hit the enter key. Note that you will only get a message back if the command is not successful. If the command is successful, you will simply see a new line prompt waiting for more input.

How do I open a file in Linux command line?

To open any file from the command line with the default application, just type open followed by the filename/path. Edit: as per Johnny Drama’s comment below, if you want to be able to open files in a certain application, put -a followed by the application’s name in quotes between open and the file.

How do I open and edit a file in Linux?

1. Open the file in vim with the command «vim». .
2. Type «/» and then the name of the value you would like to edit and press Enter to search for the value in the file. .
3. Type «i» to enter insert mode.
4. Modify the value that you would like to change using the arrow keys on your keyboard.

How do I open a DOCX file in Linux?

LibreOffice is a free, open-source, actively maintained and frequently updated office productivity suite that is compatible with Microsoft Office applications, including Microsoft Word. You can save your LibreOffice Writer documents in . doc or . docx format, and then either opens correctly in Microsoft Word.

How do you write to a file in Linux?

Basically, the command is asking to type a desired text you want to write to a file. If you want to keep the file empty just press “ctrl+D” or if you want to write the content to the file, type it and then press “ctrl+D”.

What is command line bash?

Bash is a Unix shell and command language written by Brian Fox for the GNU Project as a free software replacement for the Bourne shell. . Bash is a command processor that typically runs in a text window where the user types commands that cause actions.

What does bash mean in terminal?

Bash is the shell, or command language interpreter, for the GNU operating system. The name is an acronym for the ‘Bourne-Again SHell’, a pun on Stephen Bourne, the author of the direct ancestor of the current Unix shell sh, which appeared in the Seventh Edition Bell Labs Research version of Unix.

How do I run a program in bash?

In order to run a Bash script on your system, you have to use the “bash” command and specify the script name that you want to execute, with optional arguments. Alternatively, you can use “sh” if your distribution has the sh utility installed. As an example, let’s say that you want to run a Bash script named “script”.

How do I open a PDF file in Linux?

1. Okular. It is universal document viewer which is also a free software developed by KDE. .
2. Evince. It is a lightweight document viewer which comes as the default on Gnome desktop environment. .
3. Foxit Reader. It is a cross platform, small and fast secure PDF reader. .
4. Firefox (PDF. JS) .
5. XPDF. .
6. GNU GV. .
7. Mupdf. .
8. Qpdfview.

How do I open and edit a file in Terminal?

To edit any config file, simply open the Terminal window by pressing the Ctrl+Alt+T key combinations. Navigate to the directory where the file is placed. Then type nano followed by the filename that you want to edit. Replace /path/to/filename with the actual file path of the configuration file that you want to edit.

How do I edit a file without opening it in Linux?

Yes, you can use ‘sed’ (the Stream EDitor) to search for any number of patterns or lines by number and replace, delete, or add to them, then write the output to a new file, after which the new file can replace the original file by renaming it to the old name.

How do you edit a text file in Linux?

1. Press the ESC key for normal mode.
2. Press i Key for insert mode.
3. Press :q! keys to exit from the editor without saving a file.
4. Press :wq! Keys to save the updated file and exit from the editor.
5. Press :w test. txt to save the file as test. txt.

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