How to resolve the algorithm Shell one-liner step by step in the C programming language
How to resolve the algorithm Shell one-liner step by step in the C programming language
Table of Contents
Problem Statement
Show how to specify and execute a short program in the language from a command shell, where the input to the command shell is only one line in length. Avoid depending on the particular shell or operating system used as much as is reasonable; if the language has notable implementations which have different command argument syntax, or the systems those implementations run on have different styles of shells, it would be good to show multiple examples.
Let's start with the solution:
Step by Step solution about How to resolve the algorithm Shell one-liner step by step in the C programming language
The code you provided is a simple C program that prints the message "Hello" to the console. Here is a breakdown of the code:
main() { - This is the start of the main function, which is the entry point of the program.
printf("Hello\n"); - This line of code uses the printf function to print the string "Hello" followed by a newline character (\n) to the standard output.
} - This curly brace marks the end of the main function.
| gcc -w -x c -; ./a.out - This is a command that compiles the C code and then executes the resulting binary file. The -w flag suppresses compiler warnings, the -x c flag specifies that the input is C code, and the - flag tells the compiler to read the code from the standard input. The ./a.out command executes the compiled binary file.
When you run this code, it will print the message "Hello" to the console.
Source code in the c programming language
$ echo 'main() {printf("Hello\n");}' | gcc -w -x c -; ./a.out
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