November 1999
Intermediate to advanced
832 pages
19h 28m
English
Content preview from Practical Programming in Tcl & Tk, Third EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Cross-Platform Support
Tcl is designed so that you can write scripts that run unchanged on UNIX, Macintosh, and Windows platforms. In practice, you may need a small amount of code that is specific to a particular platform. You can find out information about the platform via the tcl_platform variable. This is an array with these elements defined:
tcl_platform(platform) is one of unix, macintosh, or windows.
tcl_platform(os) identifies the operating system. Examples include MacOS, Solaris, Linux, Win32s (Windows 3.1 with the Win32 subsystem), Windows 95, Windows NT, and SunOS.
tcl_platform(osVersion) gives the version number of the operating system.
tcl_platform(machine) identifies the hardware. Examples include ppc (Power PC), 68k (68000 family), ...
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