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Operating Systems OS X (Apple) Help in explaining this echo conundrum. Post 302993921 by wisecracker on Thursday 16th of March 2017 06:40:29 AM
Old 03-16-2017
Hi Corona688...
Quote:
I don't see any point fighting it when there's better alternatives though. Your solution is twice as complicated and much less efficient than just using printf once to do both jobs.
Perhaps but my non-rooted Android phone does NOT have printf it only has the same as my echo but the terminal I have on it does emulate the escape codes and the shell resembles a cut down version of bash, probably 'bash --posix' as I can only call it as 'sh'. Hence my experiments with 'echo' over a period of time.
 

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scrl(3XCURSES)						  X/Open Curses Library Functions					    scrl(3XCURSES)

NAME
scrl, scroll, wscrl - scroll a window SYNOPSIS
cc [ flag... ] file... -I /usr/xpg4/include -L /usr/xpg4/lib -R /usr/xpg4/lib -lcurses [ library... ] c89 [ flag... ] file... -lcurses [ library... ] #include <curses.h> int scrl(int n); int scroll(WINDOW *win); int wscrl(WINDOW *win, int n); PARAMETERS
n number and direction of lines to scroll win pointer to the window in which to scroll DESCRIPTION
The scroll() function scrolls the window win up one line. The current cursor position is not changed. The scrl() and wscrl() functions scroll the window stdscr or win up or down n lines, where n is a positive (scroll up) or negative (scroll down) integer. The scrollok(3XCURSES) function must be enabled for these functions to work. RETURN VALUES
On success, these functions return OK. Otherwise, they return ERR. ERRORS
None. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |Unsafe | +-----------------------------+-----------------------------+ SEE ALSO
clearok(3XCURSES), libcurses(3XCURSES), attributes(5), standards(5) SunOS 5.11 5 Jun 2002 scrl(3XCURSES)
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