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Top Forums Shell Programming and Scripting Generating a POSIX random number? Post 302977487 by wisecracker on Tuesday 19th of July 2016 05:54:32 AM
Old 07-19-2016
Hi RavinderSingh13...

I can't use Python in any guise as I have no idea if it is part of ALL *NIX installations.
Similarly Perl, but I have no knowledge of Perl programming anyhow.

It had to be purely POSIX 'sh' compliant and it became much more difficult than I had imagined. As Don so succinctly put it WRT my Post #1:-
Quote:
"/dev/urandom" is not specified by POSIX. So, besides being ugly, it doesn't really conform to POSIX.
There is also the fact that, is Python subject to POSIX compliance?

Again, I have no idea, so rather than use it I avoided it...

In fact I have all but abandoned Python in preference to shell scripting now.

And finally, all my Python code that I have uploaded to the WWW usually works form Python 1.4.0, (Classic AMIGA 1200(HD)), to Python 3.4.3, my latest on various current platforms without modification. This is also seriously difficult to do!

However thanks for your input...

Last edited by wisecracker; 07-19-2016 at 07:03 AM..
 

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IDLE(1) 						      General Commands Manual							   IDLE(1)

NAME
IDLE - An Integrated DeveLopment Environment for Python SYNTAX
idle [ -dins ] [ -t title ] [ file ...] idle [ -dins ] [ -t title ] ( -c cmd | -r file ) [ arg ...] idle [ -dins ] [ -t title ] - [ arg ...] DESCRIPTION
This manual page documents briefly the idle command. This manual page was written for Debian because the original program does not have a manual page. For more information, refer to IDLE's help menu. IDLE is an Integrated DeveLopment Environment for Python. IDLE is based on Tkinter, Python's bindings to the Tk widget set. Features are 100% pure Python, multi-windows with multiple undo and Python colorizing, a Python shell window subclass, a debugger. IDLE is cross-plat- form, i.e. it works on all platforms where Tk is installed. OPTIONS
-h Print this help message and exit. -n Run IDLE without a subprocess (see Help/IDLE Help for details). The following options will override the IDLE 'settings' configuration: -e Open an edit window. -i Open a shell window. The following options imply -i and will open a shell: -c cmd Run the command in a shell, or -r file Run script from file. -d Enable the debugger. -s Run $IDLESTARTUP or $PYTHONSTARTUP before anything else. -t title Set title of shell window. A default edit window will be bypassed when -c, -r, or - are used. [arg]* and [file]* are passed to the command (-c) or script (-r) in sys.argv[1:]. EXAMPLES
idle Open an edit window or shell depending on IDLE's configuration. idle foo.py foobar.py Edit the files, also open a shell if configured to start with shell. idle -est "Baz" foo.py Run $IDLESTARTUP or $PYTHONSTARTUP, edit foo.py, and open a shell window with the title "Baz". idle -c "import sys; print sys.argv" "foo" Open a shell window and run the command, passing "-c" in sys.argv[0] and "foo" in sys.argv[1]. idle -d -s -r foo.py "Hello World" Open a shell window, run a startup script, enable the debugger, and run foo.py, passing "foo.py" in sys.argv[0] and "Hello World" in sys.argv[1]. echo "import sys; print sys.argv" | idle - "foobar" Open a shell window, run the script piped in, passing '' in sys.argv[0] and "foobar" in sys.argv[1]. SEE ALSO
python(1). AUTHORS
Various. 21 September 2004 IDLE(1)
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