Info Catalog
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38 Operating System Interface
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This chapter is about starting and getting out of Emacs, access to
values in the operating system environment, and terminal input, output.
Building Emacs, for related information. Display,
for additional operating system status information pertaining to the
terminal and the screen.
· Starting Up Customizing Emacs startup processing.
· Getting Out How exiting works (permanent or temporary).
· System Environment Distinguish the name and kind of system.
· User Identification Finding the name and user id of the user.
· Time of Day Getting the current time.
· Time Zone Rules Rules for time zones and daylight saving time.
· Time Conversion Converting a time from numeric form to
calendrical data and vice versa.
· Time Parsing Converting a time from numeric form to text
and vice versa.
· Processor Run Time Getting the run time used by Emacs.
· Time Calculations Adding, subtracting, comparing times, etc.
· Timers Setting a timer to call a function at a certain time.
· Idle Timers Setting a timer to call a function when Emacs has
been idle for a certain length of time.
· Terminal Input Accessing and recording terminal input.
· Terminal Output Controlling and recording terminal output.
· Sound Output Playing sounds on the computer’s speaker.
· X11 Keysyms Operating on key symbols for X Windows.
· Batch Mode Running Emacs without terminal interaction.
· Session Management Saving and restoring state with X Session Management.
· Desktop Notifications Desktop notifications.
· File Notifications File notifications.
· Dynamic Libraries On-demand loading of support libraries.
· Security Considerations Running Emacs in an unfriendly environment.