December 2018
Beginner
320 pages
8h 57m
English
Content preview from CentOS Quick Start Guide
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Defining a signal and its types
A signal is a kind of software interrupt to a process. A signal can also be considered as a notification that needs to be processed for a specific event. Kill, pkill, and killall are programs that are used to deliver these signals to processes. On Linux, every signal name begins with the characters SIG. The signal numbers described in the following table may vary on different Linux hardware platforms, however, in any case, the signal name and meaning will remain the same.
The following table lists the popular signals used for process management, along with their descriptions:
|
Signal no. |
Signal name |
Meaning |
Description |
|
1 |
SIGHUP |
Hangup |
Given when controlling Terminal hangup (closed when user ... |
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