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Full Discussion: Bash - multiple line carriage return
Top Forums Shell Programming and Scripting Bash - multiple line carriage return Post 302597711 by xqwzts on Saturday 11th of February 2012 04:03:34 PM
Old 02-11-2012
Bash - multiple line carriage return
Hello!

I have one strange question - let's say I have a long, multiple-line string displayed on the terminal using echo, and I would like to make a carriage return to the beginning of this string, no to the beginning of the last line - is something like that possible? I would like to be able to overwrite this multiple-line string, character by character, on my terminal (using "silent" read, and then outputing the value after checking some conditional instructions).

I will be really grateful for any suggestions.
 

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asa

asa(1)							      General Commands Manual							    asa(1)

NAME

       asa - interpret ASA carriage control characters

SYNOPSIS

       [files]

DESCRIPTION

       interprets  the	output	of  FORTRAN  programs that utilize ASA carriage control characters.  It processes either the files whose names are
       given as arguments, or the standard input if is specified or if no file names are given.  The first character of each line is assumed to be
       a control character.  The following control characters are interpreted as indicated:

	      (blank) Output a single new-line character before printing.

	      (space) (UNIX Standard only, see standards(5)) The rest of the line will be output without change.

	      A <newline> shall be output, then the rest of
		      the input line.

	      Output a new-page character before printing.

	      Overprint previous line.

	      (UNIX Standard only, see
		      standards(5))  The  <newline> of the previous line shall be replaced with one or more implementation-defined characters that
		      causes printing to return to column position 1, followed by the rest of the input line. If the + is the first  character	in
		      the input, it shall have the same effect as <space>.

       Lines  beginning  with other than the above characters are treated the same as lines beginning with a blank.  The first character of a line
       is printed.  If any such lines appear, an appropriate diagnostic is sent to standard error.  This program forces the  first  line  of  each
       input file to start on a new page.

       (UNIX Standard only, see standards(5)) The action of the asa utility is unspecified upon encountering any character other than those listed
       above as the first character in a line.

       To view the output of FORTRAN programs which use ASA carriage control characters and have them appear in normal form, can be used as a fil-
       ter:

       The output, properly formatted and paginated, is then directed to the line printer.  FORTRAN output previously sent to a file can be viewed
       on a user terminal screen by using:

EXTERNAL INFLUENCES

       For information about the UNIX standard environment, see standards(5).

   Environment Variables
       determines the interpretation of text within file as single- and/or multi-byte characters.

       determines the language in which messages are displayed.

       If or is not specified in the environment or is set to the empty string, the value of is used as a default for each  unspecified  or  empty
       variable.  If is not specified or is set to the empty string, a default of "C" (see lang(5)) is used instead of

       If  any	internationalization  variable	contains an invalid setting, behaves as if all internationalization variables are set to "C".  See
       environ(5).

   International Code Set Support
       Single- and multi-byte character code sets are supported.

SEE ALSO

       efl(1), f77(1), ratfor(1), standards(5).

STANDARDS CONFORMANCE

																	    asa(1)
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