mirror of
https://github.com/LCTT/TranslateProject.git
synced 2026-08-29 04:23:33 +08:00
ChenYi
GitHub
@@ -1,5 +1,8 @@
|
||||
translating by Flowsnow
|
||||
|
||||
How To Count The Number Of Files And Folders/Directories In Linux
|
||||
======
|
||||
|
||||
Hi folks, today again we came with set of tricky commands that help you in many ways. It's kind of manipulation commands which help you to count files and directories in the current directory, recursive count, list of files created by particular user, etc,.
|
||||
|
||||
In this tutorial, we are going to show you, how to use more than one command like, all together to perform some advanced actions using ls, egrep, wc and find command. The below set of commands which helps you in many ways.
|
||||
@@ -164,7 +167,6 @@ To experiment this, i'm going to create totally 7 files and 2 folders (5 regular
|
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|
||||
```
|
||||
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
via: https://www.2daygeek.com/how-to-count-the-number-of-files-and-folders-directories-in-linux/
|
||||
|
||||
@@ -0,0 +1,147 @@
|
||||
Best Linux Screenshot and Screencasting Tools
|
||||
======
|
||||
|
||||
|
||||
There comes a time you want to capture an error on your screen and send it to the developers or want help from _Stack Overflow,_ you need the right tools to take that screenshot and save it or send it. There are tools in the form of programs and others as shell extensions for GNOME. Not to worry, here are the best Linux Screenshot taking tools that you can use to take those screenshots or make a screencast.
|
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|
||||
## Best Linux Screenshot Or Screencasting Tools
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|
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### 1\. Shutter
|
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|
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[][2]
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|
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[Shutter][3] is one of the best Linux screenshot taking tools. It has the advantage of taking different screenshots depending on what you want to take on your screen. After you take the screenshot, it allows you to see the screenshot before saving it after you take the screenshot. It also includes an extension menu that shows up on your top panel for GNOME. That makes accessing the app much easier and much convenient for anyone to use.
|
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|
||||
You can take screenshots of a selection, a window, desktop, window under cursor, section, menu, tooltip or web. Shutter allows you to upload the screenshots directly to the cloud using the preferred cloud services provider. This Linux tool also allows you to edit your screenshots before you save them. It also comes with plugins that you can add or remove.
|
||||
|
||||
To install it, you will have to type the following in the terminal:
|
||||
|
||||
```
|
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sudo add-apt-repository -y ppa:shutter/ppa
|
||||
sudo apt-get update && sudo apt-get install shutter
|
||||
```
|
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|
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### 2. Vokoscreen
|
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|
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[][4]
|
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|
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|
||||
[Vokoscreen][5] is an app that allows you to record your screen as you show around and narrate what you are doing on the screen. It is easy to use, has a simple interface and includes a top panel menu for easy access when you are recording your screen.
|
||||
|
||||
|
||||
|
||||
You can choose to record the whole screen, a window or just a selection of an area. Customizing the recording is easy to get the type of screen recording you want to achieve. Vokoscreen even allows you to create a gif as a screen recording. You can also record yourself using the webcam in case you were narrating as tutorials so that you can engage the learners. Once you are done, you can playback the recording right from the application so that you don’t have to keep navigating to find the recording.
|
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|
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[][6]
|
||||
|
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You can install Vocoscreen from your distro repository. Or download the package from [pkgs.org][7] , select the Linux distro you are using.
|
||||
|
||||
```
|
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sudo dpkg -i vokoscreen_2.5.0-1_amd64.deb
|
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```
|
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|
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### 3. OBS
|
||||
|
||||
[][8]
|
||||
|
||||
[OBS][9] can be used to record your screen as well as record streams from the internet. It allows you to see whatever you are recording as you stream or as you narrate your screen recording. It allows you to choose the quality of your recording according to your preferences. It also allows you to choose the type of file you want your recording to save to. In addition to the feature of recording, you can switch to Studio mode allowing you to edit your recording to make a complete video without having to use any other external editing software. To install OBS in your Linux distribution, you must have FFmpeg installed on your machine. To install FFmpeg type the following in the terminal for ubuntu 14.04 and earlier:
|
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|
||||
```
|
||||
sudo add-apt-repository ppa:kirillshkrogalev/ffmpeg-next
|
||||
|
||||
sudo apt-get update && sudo apt-get install ffmpeg
|
||||
```
|
||||
|
||||
For ubuntu 15.04 and later you can just type the following in the terminal to install FFmpeg:
|
||||
|
||||
```
|
||||
sudo apt-get install ffmpeg
|
||||
```
|
||||
|
||||
If you have already installed FFmpeg, type the following in the terminal to install OBS:
|
||||
|
||||
```
|
||||
sudo add-apt-repository ppa:obsproject/obs-studio
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sudo apt-get update
|
||||
|
||||
sudo apt-get install obs-studio
|
||||
```
|
||||
|
||||
### 4. Green Recorder
|
||||
|
||||
[][10]
|
||||
|
||||
[Green recorder][11] is a simple interface based program that allows you to record the screen. You can choose what to record including video or just audio and allow you to show the mouse pointer and even follow it as you record your screen. You can record a window or just a selected area on your screen so that only what you want to record shows up in your recording. You can customize the number of frames to record in your final video. In case you want to start recording after a delay, you have the option to configure the delay you wish to set. You have the option to run a command after the recording is done that will run on your machine immediately after you stop recording.
|
||||
|
||||
|
||||
|
||||
To install green recorder, type the following in the terminal:
|
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|
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```
|
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sudo add-apt-repository ppa:fossproject/ppa
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||||
|
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sudo apt update && sudo apt install green-recorder
|
||||
```
|
||||
|
||||
### 5. Kazam
|
||||
|
||||
[][12]
|
||||
|
||||
[Kazam][13] Linux screenshot tool is very popular amongst Linux users. It is an intuitive simple to use app that allows you to take a screencast or a screenshot allowing you to customise the delay before taking a screencast or screenshot. It allows you to select the area, window or fullscreen you want to capture. Kazam’s interface is well laid out and not as complicated as other apps. Its features will leave you happy about taking your screenshots. Kazam also includes a system tray icon and menu that allows you to take the screenshot without going to the application itself.
|
||||
|
||||
|
||||
|
||||
To install Kazam, type the following in the terminal:
|
||||
|
||||
```
|
||||
sudo apt-get install kazam
|
||||
```
|
||||
|
||||
If the PPA is not found, you can install it manually using the following commands:
|
||||
|
||||
```
|
||||
sudo add-apt-repository ppa:kazam-team/stable-series
|
||||
|
||||
sudo apt-get update && sudo apt-get install kazam
|
||||
```
|
||||
|
||||
### 6. Screenshot tool GNOME extension
|
||||
|
||||
[][1]
|
||||
|
||||
There is a GNOME extension just named screenshot tool that always shows up on the system panel until you disable it. It is convenient since it just sits on the system panel until you will trigger it to take a screenshot. The main advantage of this tool is that it is the quickest to access since it is always in your system panel unless you deactivate it in the tweak utility tool. The tool also has a preferences window allowing you to tweak it to your preferences. To install it on your GNOME desktop, head to extensions.gnome.org and search for “_Screenshot Tool”._
|
||||
|
||||
You must have the gnome extensions chrome extension installed as well as GNOME tweaks tool installed to use the tool.
|
||||
|
||||
[][14]
|
||||
|
||||
The **Linux screenshot tools** are quite helpful especially when you don’t know what to do when you come across a problem and want to share the error with [the Linux community][15] or the developers of a program that you are using. Learning developers or programmers or anyone else need it will find these tools useful to share your screenshots. Youtubers and tutorial makers will find the screencasting tools even more useful when they use them to record their tutorials and post them.
|
||||
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
via: http://www.linuxandubuntu.com/home/best-linux-screenshot-screencasting-tools
|
||||
|
||||
作者：[linuxandubuntu][a]
|
||||
译者：[译者ID](https://github.com/译者ID)
|
||||
校对：[校对者ID](https://github.com/校对者ID)
|
||||
|
||||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||||
|
||||
[a]:http://www.linuxandubuntu.com
|
||||
[1]:http://www.linuxandubuntu.com/uploads/2/1/1/5/21152474/gnome-screenshot-extension-compressed_orig.jpg
|
||||
[2]:http://www.linuxandubuntu.com/uploads/2/1/1/5/21152474/shutter-linux-screenshot-taking-tools_orig.jpg
|
||||
[3]:http://shutter-project.org/
|
||||
[4]:http://www.linuxandubuntu.com/uploads/2/1/1/5/21152474/vokoscreen-screencasting-tool-for-linux_orig.jpg
|
||||
[5]:https://github.com/vkohaupt/vokoscreen
|
||||
[6]:http://www.linuxandubuntu.com/uploads/2/1/1/5/21152474/vokoscreen-preferences_orig.jpg
|
||||
[7]:https://pkgs.org/download/vokoscreen
|
||||
[8]:http://www.linuxandubuntu.com/uploads/2/1/1/5/21152474/obs-linux-screencasting-tool_orig.jpg
|
||||
[9]:https://obsproject.com/
|
||||
[10]:http://www.linuxandubuntu.com/uploads/2/1/1/5/21152474/green-recording-linux-tool_orig.jpg
|
||||
[11]:https://github.com/foss-project/green-recorder
|
||||
[12]:http://www.linuxandubuntu.com/uploads/2/1/1/5/21152474/kazam-screencasting-tool-for-linux_orig.jpg
|
||||
[13]:https://launchpad.net/kazam
|
||||
[14]:http://www.linuxandubuntu.com/uploads/2/1/1/5/21152474/gnome-screenshot-extension-preferences_orig.jpg
|
||||
[15]:http://www.linuxandubuntu.com/home/top-10-communities-to-help-you-learn-linux
|
||||
@@ -1,114 +0,0 @@
|
||||
translating by Flowsnow
|
||||
|
||||
The Fold Command Tutorial With Examples For Beginners
|
||||
======
|
||||
|
||||
|
||||
|
||||
Have you ever found yourself in a situation where you want to fold or break the output of a command to fit within a specific width? I have find myself in this situation few times while running VMs, especially the servers with no GUI. Just in case, if you ever wanted to limit the output of a command to a particular width, look nowhere! Here is where **fold** command comes in handy! The fold command wraps each line in an input file to fit a specified width and prints it to the standard output.
|
||||
|
||||
In this brief tutorial, we are going to see the usage of fold command with practical examples.
|
||||
|
||||
### The Fold Command Tutorial With Examples
|
||||
|
||||
Fold command is the part of GNU coreutils package, so let us not bother about installation.
|
||||
|
||||
The typical syntax of fold command:
|
||||
```
|
||||
fold [OPTION]... [FILE]...
|
||||
```
|
||||
|
||||
Allow me to show you some examples, so you can get a better idea about fold command. I have a file named **linux.txt** with some random lines.
|
||||
|
||||
[![][1]][2]
|
||||
|
||||
To wrap each line in the above file to default width, run:
|
||||
```
|
||||
fold linux.txt
|
||||
```
|
||||
|
||||
**80** columns per line is the default width. Here is the output of above command:
|
||||
|
||||
[![][1]][3]
|
||||
|
||||
As you can see in the above output, fold command has limited the output to a width of 80 characters.
|
||||
|
||||
Of course, we can specify your preferred width, for example 50, like below:
|
||||
```
|
||||
fold -w50 linux.txt
|
||||
```
|
||||
|
||||
Sample output would be:
|
||||
|
||||
[![][1]][4]
|
||||
|
||||
Instead of just displaying output, we can also write the output to a new file as shown below:
|
||||
```
|
||||
fold -w50 linux.txt > linux1.txt
|
||||
```
|
||||
|
||||
The above command will wrap the lines of **linux.txt** to a width of 50 characters, and writes the output to new file named **linux1.txt**.
|
||||
|
||||
Let us check the contents of the new file:
|
||||
```
|
||||
cat linux1.txt
|
||||
```
|
||||
|
||||
[![][1]][5]
|
||||
|
||||
Did you closely notice the output of the previous commands? Some words are broken between lines. To overcome this issue, we can use -s flag to break the lines at spaces.
|
||||
|
||||
The following command wraps each line in a given file to width "50" and breaks the line at spaces:
|
||||
```
|
||||
fold -w50 -s linux.txt
|
||||
```
|
||||
|
||||
Sample output:
|
||||
|
||||
[![][1]][6]
|
||||
|
||||
See? Now, the output is much clear. This command puts each space separated word in a new line and words with length > 50 are wrapped.
|
||||
|
||||
In all above examples, we limited the output width by columns. However, we can enforce the width of the output to the number of bytes specified using **-b** option. The following command breaks the output at 20 bytes.
|
||||
```
|
||||
fold -b20 linux.txt
|
||||
```
|
||||
|
||||
Sample output:
|
||||
|
||||
[![][1]][7]
|
||||
|
||||
**Also read:**
|
||||
|
||||
+ [The Uniq Command Tutorial With Examples For Beginners][8]
|
||||
|
||||
For more details, refer the man pages.
|
||||
```
|
||||
man fold
|
||||
```
|
||||
|
||||
And, that's for now folks. You know now how to use fold command to limit the output of a command to fit in a specific width. I hope this was useful. We will be posting more useful guides everyday. Stay tuned!
|
||||
|
||||
Cheers!
|
||||
|
||||
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
via: https://www.ostechnix.com/fold-command-tutorial-examples-beginners/
|
||||
|
||||
作者：[SK][a]
|
||||
译者：[译者ID](https://github.com/译者ID)
|
||||
校对：[校对者ID](https://github.com/校对者ID)
|
||||
|
||||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||||
|
||||
[a]:https://www.ostechnix.com/author/sk/
|
||||
[1]:data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
|
||||
[2]:http://www.ostechnix.com/wp-content/uploads/2018/01/fold-command-1.png
|
||||
[3]:http://www.ostechnix.com/wp-content/uploads/2018/01/fold-command-2.png
|
||||
[4]:http://www.ostechnix.com/wp-content/uploads/2018/01/fold-command-3-1.png
|
||||
[5]:http://www.ostechnix.com/wp-content/uploads/2018/01/fold-command-4.png
|
||||
[6]:http://www.ostechnix.com/wp-content/uploads/2018/01/fold-command-5-1.png
|
||||
[7]:http://www.ostechnix.com/wp-content/uploads/2018/01/fold-command-6-1.png
|
||||
[8]:https://www.ostechnix.com/uniq-command-tutorial-examples-beginners/
|
||||
@@ -0,0 +1,118 @@
|
||||
Fold命令入门级示例教程
|
||||
======
|
||||
|
||||
|
||||
|
||||
你有没有发现自己在某种情况下想要折叠或打破命令的输出用于适应特定的宽度？ 在运行虚拟机的时候，我遇到了几次这种的情况，特别是没有GUI的服务器。 以防万一，如果你想限制一个命令的输出为一个特定的宽度，现在看看这里！ **fold**命令在这里就能派的上用场了！ fold命令以适合指定的宽度调整输入文件中的每一行并将其打印到标准输出。
|
||||
|
||||
在这个简短的教程中，我们将看到fold命令的用法，带有实例哦。
|
||||
|
||||
### fold命令示例教程
|
||||
|
||||
fold命令是GNU coreutils包的一部分，所以我们不用为安装的事情烦恼。
|
||||
|
||||
fold命令的典型语法：
|
||||
```
|
||||
fold [OPTION]... [FILE]...
|
||||
```
|
||||
|
||||
请允许我向您展示一些示例，以便您更好地了解fold命令。 我有一个名为linux.txt文件，内容是随机的。
|
||||
|
||||
Allow me to show you some examples, so you can get a better idea about fold command. I have a file named **linux.txt** with some random lines.
|
||||
|
||||
![][2]
|
||||
|
||||
要将上述文件中的每一行换行为默认宽度，请运行：
|
||||
|
||||
```
|
||||
fold linux.txt
|
||||
```
|
||||
|
||||
每行**80**列是默认的宽度。 这里是上述命令的输出：
|
||||
|
||||
![][3]
|
||||
|
||||
正如你在上面的输出中看到的，fold命令已经将输出限制为80个字符的宽度。
|
||||
|
||||
当然，我们可以指定您的首选宽度，例如50，如下所示：
|
||||
|
||||
```
|
||||
fold -w50 linux.txt
|
||||
```
|
||||
|
||||
Sample output would be:
|
||||
|
||||
![][4]
|
||||
|
||||
我们也可以将输出写入一个新的文件，如下所示：
|
||||
|
||||
```
|
||||
fold -w50 linux.txt > linux1.txt
|
||||
```
|
||||
|
||||
以上命令将把**linux.txt**的行宽度改为50个字符，并将输出写入到名为**linux1.txt**的新文件中。
|
||||
|
||||
让我们检查一下新文件的内容：
|
||||
|
||||
```
|
||||
cat linux1.txt
|
||||
```
|
||||
|
||||
![][5]
|
||||
|
||||
你有没有注意到前面的命令的输出？ 有些词在行之间被打破。 为了解决这个问题，我们可以使用-s标志来在空格处换行。
|
||||
|
||||
以下命令将给定文件中的每行调整为宽度“50”，并在空格处换到新行：
|
||||
|
||||
```
|
||||
fold -w50 -s linux.txt
|
||||
```
|
||||
|
||||
示例输出：
|
||||
|
||||
![][6]
|
||||
|
||||
看清楚了吗？ 现在，输出很清楚。 换到新行中的单词都是用空格隔开的，所在行单词的长度大于50的时候就会被调整到下一行。
|
||||
|
||||
在所有上面的例子中，我们用列来限制输出宽度。 但是，我们可以使用**-b**选项将输出的宽度强制为指定的字节数。 以下命令以20个字节中断输出。
|
||||
|
||||
```
|
||||
fold -b20 linux.txt
|
||||
```
|
||||
|
||||
Sample output:
|
||||
|
||||
![][7]
|
||||
|
||||
**另请阅读：**
|
||||
|
||||
+ [Unix命令入门级示例教程][8]
|
||||
|
||||
有关更多详细信息，请参阅man手册页。
|
||||
```
|
||||
man fold
|
||||
```
|
||||
|
||||
而且，这些就是所有的内容了。 您现在知道如何使用fold命令以适应特定的宽度来限制命令的输出。 我希望这是有用的。 我们将每天发布更多有用的指南。 敬请关注！
|
||||
|
||||
干杯!
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
via: https://www.ostechnix.com/fold-command-tutorial-examples-beginners/
|
||||
|
||||
作者：[SK][a]
|
||||
译者：[Flowsnow](https://github.com/Flowsnow)
|
||||
校对：[校对者ID](https://github.com/校对者ID)
|
||||
|
||||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||||
|
||||
[a]:https://www.ostechnix.com/author/sk/
|
||||
[1]:data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
|
||||
[2]:http://www.ostechnix.com/wp-content/uploads/2018/01/fold-command-1.png
|
||||
[3]:http://www.ostechnix.com/wp-content/uploads/2018/01/fold-command-2.png
|
||||
[4]:http://www.ostechnix.com/wp-content/uploads/2018/01/fold-command-3-1.png
|
||||
[5]:http://www.ostechnix.com/wp-content/uploads/2018/01/fold-command-4.png
|
||||
[6]:http://www.ostechnix.com/wp-content/uploads/2018/01/fold-command-5-1.png
|
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[7]:http://www.ostechnix.com/wp-content/uploads/2018/01/fold-command-6-1.png
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[8]:https://www.ostechnix.com/uniq-command-tutorial-examples-beginners/
|
||||
Reference in New Issue
Block a user