New article – Signal Handling in Linux

This article introduces signals in Linux to the reader. It explains the nature of signals, how to use them and gives few small use examples.

Read the article here.

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One Comment

  1. Mehul Solanki says:

    Hi Alex,

    I read your article is is nice to get basic knowledge about signal.
    I am little bit confused about sigaction api. Here sigaction api is having three argument and last argument is showing the struct sigaction *oldact. What is the use of that third argument. In manual page they have written that it is used to replace old signal action. but how it will replace old action. I m confused about that thing. Can you give demonstration code for that how it can switch to old action.

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