Understanding System Calls and Process Management
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12 Terms
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signal()
Assigns a response to a signal
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SIG_IGN
Signal handler that ignores the signal.
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SIG_DFL
Default system response to a signal.
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PID
Unique identifier for a process.
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pipe()
Communication channel between two processes.
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dup2()
Redirects one file descriptor to another.
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exec()
Replaces current process with a new one.
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fork()
Creates a new child process.
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open()
Opens a file, returning a file descriptor.
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close()
Closes a file descriptor to free memory.
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read()
Reads data from a file descriptor into a buffer.
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write()
Writes data to a file descriptor from a buffer.