C program to execute shell script

Learn more. Execute a shell script using execl in C program [closed] Ask Question. Asked 3 years, 10 months ago. Active 3 years, 10 months ago. Viewed 5k times. Improve this question. Amir Ali. Amir Ali Amir Ali 3 1 1 silver badge 3 3 bronze badges. If this does not work, then please edit your question and say so, along with any errors or warnings that may be produced when you try. Well, something must be wrong then.

Unfortunately, you don't tell us what's happening. The former can be done with sudo but there are a few things you need to know before you can go off using sudo.

StackOverflow: Using fork,pipe,select Depending on what you are doing, you may not need root. How are we doing? Please help us improve Stack Overflow. Take our short survey. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Asked 12 years, 10 months ago. Active 5 months ago. Viewed k times. Improve this question. Kredns Kredns Add a comment. Yes, this actually calls the shell twice. Hi Matt. This is useful. But, I see it is blocking. How do I make it asynchronous?

A simple way is Ganesh Ganesh 41 1 1 bronze badge. Store you command in a char array parameters, and malloc space for the result. Sign up or log in Sign up using Google. Sign up using Facebook.

Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Helping communities build their own LTE networks. We all use the built in terminal window in Linux distributions like Ubuntu, Fedora, etc. But how do they actually work? In this article, We are going to handle some under the hood features and algorithms what actually work inside a shell.

All Linux operating systems have a terminal window to write in commands. But how are they executed properly after they are entered? Also, how are extra features like keeping the history of commands and showing help handled?

All of this can be understood by creating your own shell. The Basics After a command is entered, the following things are done: Command is entered and if length is non-null, keep it in history.

Parsing : Parsing is the breaking up of commands into individual words and strings Checking for special characters like pipes, etc is done Checking if built-in commands are asked for.