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Usually, this command is simply passed to the Bourne shell, which means that you can execute whole scripts, should you choose to do so. Lastly, Unix runs Bourne shell scripts when it boots. If you want to modify the boot-time behavior of a system, you need to learn to write and modify Bourne shell scripts.
You could easily open up another shell connection and run the command, but it would be quicker to simply stop the editor, run the command quickly, copy the text, and bring your editor to the foreground. The following is a sequence that illustrates how this example would look on your shell.
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Feb 22, 2009 · now when i make the call to ls > out.txt it exits my shell??? it still writes to out.txt and if i run the shell again i can call cat < out.txt and it works fine. But, if pid == 0 shouldn't the current process be the child so the call to exit(0) would quit the child process and return to the parent?? I don't know why that is exiting the shell?
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Oct 04, 2012 · I was trying to write a program which is similar to "sh" shell. However, I am having problem dealing with background process. Everything is working fine except the following case: As it should be, I fork() a child process and use execvp() in child to load the target program in it.