The Linux working system is a robust and versatile instrument that can be utilized for all kinds of duties. One of the basic duties that you would be able to carry out on a Linux system is to execute a program. Nevertheless, in case you are new to Linux, chances are you’ll not understand how to do that. This text will give you a step-by-step information on the right way to execute a Linux program and not using a title.
To execute a program in Linux, you have to first open a terminal window. There are a number of methods to do that. A technique is to press the “Ctrl” + “Alt” + “T” keys concurrently. One other approach is to click on on the “Terminal” icon on the desktop. After getting opened a terminal window, you should utilize the “cd” command to vary to the listing the place this system is positioned. For instance, if this system is positioned within the “/dwelling/consumer/bin” listing, you’ll kind the next command:
“`
cd /dwelling/consumer/bin
“`
After getting modified to the right listing, you should utilize the “./” operator to execute this system. For instance, if this system is called “program.sh”, you’ll kind the next command:
“`
./program.sh
“`
This can execute this system and show the output within the terminal window. If this system requires any arguments, you’ll be able to cross them to this system after this system identify. For instance, if this system requires a filename as an argument, you’ll kind the next command:
“`
./program.sh filename.txt
“`
This can execute this system and cross the filename.txt file as an argument. You may as well use the “|” operator to redirect the output of this system to a different command. For instance, if you wish to redirect the output of this system to a file, you’ll kind the next command:
“`
./program.sh > output.txt
“`
Utilizing Pipes and Filters
Pipes and filters are basic ideas in Unix methods and are important for highly effective command-line manipulation.
A pipe is a mechanism that enables the output of 1 command to be handed as enter to a different command. Filters are instructions that course of their enter and generate output. By combining pipes and filters, customers can create advanced command sequences that carry out subtle operations.
To create a pipe, use the pipe image (|). The command earlier than the pipe outputs to the pipe, and the command after the pipe reads enter from the pipe. For instance, the next command makes use of a pipe to cross the output of the ls command to the grep command, which filters the outcomes to show solely information with a “.txt” extension:
“`
ls | grep “.txt”
“`
Filters can be utilized to carry out a variety of duties, together with:
| Filter | Description |
|---|---|
| grep | Seek for a sample in textual content |
| sed | Carry out textual content substitution and modifying |
| awk | Carry out sample matching and knowledge manipulation |
| lower | Extract particular columns from a file |
| uniq | Take away duplicate strains from a file |
| type | Type strains in a file |
| wc | Rely strains, phrases, and characters in a file |
By combining pipes and filters, customers can create advanced command sequences that carry out subtle operations. For instance, the next command makes use of a sequence of pipes and filters to extract the second column from a file, take away duplicate strains, and rely the variety of occurrences of every distinctive worth:
“`
lower -d ‘,’ -f 2 file.csv | uniq | type | awk ‘{print $1, $2}’ | wc -l
“`
Easy methods to Execute Linux Applications
There are numerous methods to execute Linux packages. One widespread approach is to make use of the command line interface (CLI). To do that, you will want to open a terminal window. You are able to do this by urgent **Ctrl + Alt + T** or by clicking on the terminal icon in your desktop surroundings.
After getting a terminal window open, you should utilize the **cd** command to vary to the listing the place this system you wish to execute is positioned. For instance, if this system is positioned within the /dwelling/consumer/bin listing, you’ll kind the next command:
***cd /dwelling/consumer/bin***
As soon as you might be within the right listing, you’ll be able to execute this system by typing its identify adopted by any obligatory arguments. For instance, to execute the ls command, you’ll kind the next command:
***ls***
This can record the contents of the present listing.
You may as well execute packages utilizing a graphical consumer interface (GUI). To do that, you will want to seek out this system in your desktop surroundings’s menu or launcher. After getting discovered this system, you’ll be able to click on on it to execute it.
Folks Additionally Ask
How do I execute a Linux program with arguments?
You’ll be able to execute a Linux program with arguments by typing this system’s identify adopted by the arguments. For instance, to execute the ls command with the -l argument, you’ll kind the next command:
***ls -l***
How do I execute a Linux program within the background?
You’ll be able to execute a Linux program within the background by including an ampersand (&) to the top of the command. For instance, to execute the ls command within the background, you’ll kind the next command:
***ls &***
How do I execute a Linux program as a special consumer?
You’ll be able to execute a Linux program as a special consumer through the use of the sudo command. For instance, to execute the ls command as the basis consumer, you’ll kind the next command:
***sudo ls***
