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Full Discussion: How to read multiple lines from Std Input into an array
Top Forums Shell Programming and Scripting How to read multiple lines from Std Input into an array Post 302400692 by bharath.gct on Thursday 4th of March 2010 12:16:52 AM
Old 03-04-2010
Thanks all for your reply!

Ok, I think I left 1 requirement in my first post. I am going to get my filenames (inputs) thru email and there are going to be a lot of filenames (and NO constant count on number of files) which I would be passing to the script for processing.

I was thinking if I can just copy and paste all the filenames into the standard input and read it in my script thru an array/any-other way and process them each in a loop.

I have tried the above examples but in which I was not able to paste all the filenames at a single shot! When I do paste, after the first line since there is a return key in the list of filenames, the script breaks.

Please help me do this! Let me know if you have any questions!

---------- Post updated at 12:16 AM ---------- Previous update was at 12:10 AM ----------

Simply put, the read command, I believe, reads only one line from the Standard Input. So, I will end up giving my filename list one by one which I will not be able to do as the list is huge. Is there a way to read multiple lines from Std input at a single stretch?
 

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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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