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Full Discussion: Escape character - sed
Top Forums Shell Programming and Scripting Escape character - sed Post 302244415 by era on Wednesday 8th of October 2008 02:33:11 AM
Old 10-08-2008
You are not copy+pasting correctly, and not reporting back what the error message is. "Still no good" is not a useful diagnostic. But if you carefully use your mouse to copy+paste the commands above, and carefully copy+paste any errors back here, we might be able to help you.

"Unknown option to s" means you have something after (what sed thinks is) the final separator which is not a valid option for s/from/to/gp (here, "g" and "p" are options). In this case, it's simply because you still use slash as the separator, without escaping those slashes which are not separators. Change the separator to %, or escape the slashes as required.

Also, your command is partial; you are missing the "to" part \1$answer\2
 

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LEARN ABOUT MINIX

paste

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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