#stdin

Redirecionamentos e Condutores no Linux

Um conceito importante no Linux é o redirecionamento. Como o Linux foi criado por programadores para programadores, fez-se necessário que os comandos e processos tivessem a habilidade de tratar as entradas e saídas de dados com grande facilidade.

Antes de detalharmos a habilidade de redirecionamento do Linux precisamos definir o que são entradas padrão, saída padrão e saída de erro.

Entrada…

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KEY TOPICS

WATERVILLE — Collaborative Consulting, the Massachusetts-based technology business that opened a site in Waterville this year, has been purchased by CGI Group Inc., a multibillion dollar global leader in information technology and business processing services based in Montreal, Quebec.(More…)

SinterCast is the world’s largest supplier of the control technology used by…

A wierd way to invoke the compiler

Did you know that you can run the compiler from sources specified in stdin?  Here’s an example:

// m.c #include <stdio.h> int main() { int x = 3; printf("%d\n", x); return 0; }

You have to specify the language for the code explicitly, since that can’t be inferred from the filename when that file data is coming from stdin:

$ cat m.c | clang -g -x c - -o f $ ./f 3

Solution: Writing to stdin of background process #dev #it #answer

Writing to stdin of background process

I’m on an Ubuntu 10.04 box, and started a server in the background (myserver &) over ssh. It’s been running fine, but I need a way to get at the server’s stdin, as the only way to control the server is through this method.

Is there some way to get at the stdin of an already-running process so I can write to it (and hopefully read its stdout)? Obviously, if…

Answer: Writing to stdin of background process #answer #computers #it

Writing to stdin of background process

I’m on an Ubuntu 10.04 box, and started a server in the background (myserver &) over ssh. It’s been running fine, but I need a way to get at the server’s stdin, as the only way to control the server is through this method.

Is there some way to get at the stdin of an already-running process so I can write to it (and hopefully read its stdout)? Obviously, if…

Solution: Can I send some text to the STDIN of an active process running in a screen session? #answer #solution #programming

Can I send some text to the STDIN of an active process running in a screen session?

I have a long-running server process inside a screen session on my Linux server. It’s a bit unstable (and sadly not my software so I can’t fix that!), so I want to script a nightly restart of the process to help stability. The only way to make it do a graceful shutdown is to go to the screen process, switch to the…