8+ Show 使い方 References

Echo show不具合に効くリセット方法とリセット後の手順について簡単解説！よこぽよブログ from hokkoridays.com

The Basics of Show

Show is a command-line tool that is commonly used in Unix-based operating systems. It is used to display the contents of a file or a command output in the terminal. The basic syntax of the show command is:

show [options] [file]

The options can be used to modify the behavior of the command, while the file argument specifies the file to be displayed. In this article, we will explore the various ways in which the show command can be used to improve your productivity.

Displaying the Contents of a File

The most basic use of the show command is to display the contents of a file in the terminal. To do this, simply type:

show filename

This will display the contents of the file in the terminal. You can scroll through the contents using the arrow keys or the page up/down keys.

Displaying Line Numbers

If you want to display the line numbers along with the contents of the file, you can use the -n option. For example:

show -n filename

This will display the contents of the file along with line numbers.

Displaying Specific Lines

You can also use the show command to display specific lines of a file. To do this, use the syntax:

show filename | sed -n 'x,yp'

Here, x and y are the starting and ending line numbers, respectively. For example, to display lines 10 to 20 of a file, you can use:

show filename | sed -n '10,20p'

Displaying the Contents of a Directory

In addition to displaying the contents of a file, the show command can also be used to display the contents of a directory. To do this, use the -R option. For example:

show -R directoryname

This will display the contents of the directory, including all the subdirectories and files.

Sorting the Contents

You can also use the show command to sort the contents of a file or directory. To do this, use the -r option to sort in reverse order. For example:

show -r filename

This will display the contents of the file in reverse order.

Displaying Hidden Files

By default, the show command does not display hidden files. To display hidden files, use the -a option. For example:

show -a directoryname

This will display all the files in the directory, including the hidden files.

Filtering the Contents

You can also use the show command to filter the contents of a file or directory based on a pattern. To do this, use the syntax:

show filename | grep pattern

Here, pattern is the string or regular expression that you want to search for. For example, to display all the lines in a file that contain the word "error", you can use:

show filename | grep error

Conclusion

In conclusion, the show command is a powerful tool that can be used to improve your productivity in the terminal. By mastering the various options and syntaxes of the show command, you can display, sort, filter, and manipulate the contents of files and directories in a more efficient and effective way. So go ahead and start exploring the possibilities of the show command today!