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Top Forums Shell Programming and Scripting Read a multiline text from a console - supporting arrow keys Post 302715481 by wenclu on Monday 15th of October 2012 03:18:36 AM
Old 10-15-2012
Read a multiline text from a console - supporting arrow keys

Hi,

I try to read a multiline text from a console and write it to a file using a bash script. I want to end reading from a console if a user types the [Enter] key twice. I tried this loop:
Code:
while read LINE; do
if [ ! $LINE ] 2>/dev/null; then
   break
fi
echo -e ${LINE} >> $file
done

However, it doesn't support the arrow keys

Do you have any idea?

Thanks in advance
 

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Tk_InitConsoleChannels(3)				       Tk Library Procedures					 Tk_InitConsoleChannels(3)

__________________________________________________________________________________________________________________________________________________

NAME
Tk_InitConsoleChannels - Install the console channels as standard channels SYNOPSIS
#include <tk.h> Tk_InitConsoleChannels(interp) ARGUMENTS
Tcl_Interp *interp (in) Interpreter in which the console channels are created. _________________________________________________________________ DESCRIPTION
Tk_InitConsoleChannels is invoked to create a set of console channels and install them as the standard channels. All I/O on these channels will be discarded until Tk_CreateConsoleWindow is called to attach the console to a text widget. This function is for use by shell applications based on Tk, like wish, on platforms which have no standard channels in graphical mode, like Win32. The interp argument is the interpreter in which to create and install the console channels. NOTE: If this function is used it has to be called before the first call to Tcl_RegisterChannel, directly, or indirectly through other channel functions. Because otherwise the standard channels will be already initialized to the system defaults, which will be nonsensical for the case Tk_InitConsoleChannels is for. SEE ALSO
console(n) KEYWORDS
standard channels, console Tk 8.5 Tk_InitConsoleChannels(3)
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