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Top Forums Programming How do you detect keystrokes in canonical mode? Post 302573710 by Corona688 on Tuesday 15th of November 2011 09:55:38 AM
Old 11-15-2011
You don't.

From man termios:

Code:
       In canonical mode:

       * Input  is  made  available  line by line.  An input line is available
         when one of the line delimiters is typed (NL, EOL, EOL2;  or  EOF  at
         the start of line).  Except in the case of EOF, the line delimiter is
         included in the buffer returned by read(2).

You'll get the [[A, etc. as arrow key escape-sequences after you hit ENTER. It's not stripping them out, but you won't get anything until you hit ENTER.

If you want individual keystrokes, use noncanonical (raw) mode.
 

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PASTE(1)						      General Commands Manual							  PASTE(1)

NAME
paste - paste multiple files together SYNOPSIS
paste [-s] [-d list] file... OPTIONS
-d Set delimiter used to separate columns to list. -s Print files sequentially, file k on line k. EXAMPLES
paste file1 file2 # Print file1 in col 1, file2 in col 2 paste -s f1 f2 # Print f1 on line 1 and f2 on line 2 paste -d : file1 file2 # Print the lines separated by a colon DESCRIPTION
Paste concatenates corresponding lines of the given input files and writes them to standard output. The lines of the different files are separated by the delimiters given with the option -s. If no list is given, a tab is substituted for every linefeed, except the last one. If end-of-file is hit on an input file, subsequent lines are empty. Suppose a set of k files each has one word per line. Then the paste output will have k columns, with the contents of file j in column j. If the -s flag is given, then the first file is on line 1, the second file on line 2, etc. In effect, -s turns the output sideways. If a list of delimiters is given, they are used in turn. The C escape sequences , , \, and are used for linefeed, tab, backslash, and the null string, respectively. PASTE(1)
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