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Linux® Desk Reference, Second Edition by Scott Hawkins

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Glossary

child process

The process resulting from a fork() and exec() sequence of system calls. The process that initiated the fork() is called the parent.

exec()

A system call that, when invoked, transfers the attributes and resources of the currently executing process to another (presumably different) program specified as a parameter of the system call. In this way new processes are made.

fork()

A system call that creates a near-exact (everything but PID) duplicate of the currently executing process. Used in conjunction with exec() to start up new programs.

gid

Group id. Numeric value associated with some group identity. Specified in /etc/group.

hard link

A second (or third, or fourth…) inode that points to a file.

inode

The data structure ...

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