Need to convert a pipe delimited text file to tab delimited Post: 302940431

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Top Forums UNIX for Dummies Questions & Answers Need to convert a pipe delimited text file to tab delimited Post 302940431 by wisecracker on Sunday 5th of April 2015 11:09:01 AM

04-05-2015

Registered User

Longhand using builtins only to show that it can be done, (there are much better methods), using OSX 10.7.5, default bash terminal:-

Code:

#!/bin/bash
# tab.sh
> /tmp/txt
> /tmp/text
echo "1|A|apple|A|apple
2|B|bottle|A|apple
2|B|bottle
1|A|apple
2|B|bottle
" > /tmp/txt
text=$(cat /tmp/txt)
echo "$text"
# Working part start.
count=0
while [ $count -lt ${#text} ]
do
	if [ "${text:$count:1}" = "|" ]
	then
		printf "	" >> /tmp/text
	else
		printf "${text:$count:1}" >> /tmp/text
	fi
	count=$((count+1))
done
# Replace the final newline.
echo "" >> /tmp/text
# Working part end.
cat /tmp/text
hexdump -C /tmp/text
exit 0

Results:-

Code:

Last login: Sun Apr  5 16:00:45 on ttys000
AMIGA:barrywalker~> cd Desktop/Code/Shell
AMIGA:barrywalker~/Desktop/Code/Shell> chmod 755 tab.sh
AMIGA:barrywalker~/Desktop/Code/Shell> ./tab.sh
1|A|apple|A|apple
2|B|bottle|A|apple
2|B|bottle
1|A|apple
2|B|bottle
1	A	apple	A	apple
2	B	bottle	A	apple
2	B	bottle
1	A	apple
2	B	bottle
00000000  31 09 41 09 61 70 70 6c  65 09 41 09 61 70 70 6c  |1.A.apple.A.appl|
00000010  65 0a 32 09 42 09 62 6f  74 74 6c 65 09 41 09 61  |e.2.B.bottle.A.a|
00000020  70 70 6c 65 0a 32 09 42  09 62 6f 74 74 6c 65 0a  |pple.2.B.bottle.|
00000030  31 09 41 09 61 70 70 6c  65 0a 32 09 42 09 62 6f  |1.A.apple.2.B.bo|
00000040  74 74 6c 65 0a                                    |ttle.|
00000045
AMIGA:barrywalker~/Desktop/Code/Shell> _

IMPORTANT NOTE: You have asked for TAB delimiters but have shown SPACE delimiters so be aware that this is TAB not SPACE! Hence the hexdump.
Also trailing newlines can be a problem but not in this particular case...

EDIT:
What have you attempted so far?
Also there are only nelines are carriage returns needed with the newlines too?

Last edited by wisecracker; 04-05-2015 at 01:38 PM.. Reason: See above...

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LEARN ABOUT PHP

key

KEY(3)									 1								    KEY(3)

key - Fetch a key from an array

SYNOPSIS

       mixed key (array  &$array)

DESCRIPTION

       key(3) returns the index element of the current array position.

PARAMETERS

	      o $array
		- The array.

RETURN VALUES

	The  key(3)  function  simply  returns the key of the array element that's currently being pointed to by the internal pointer. It does not
       move the pointer in any way. If the internal pointer points beyond the end of the elements list or the array is empty, key(3) returns NULL.

EXAMPLES

       Example #1

	      key(3) example

	      <?php
	      $array = array(
		  'fruit1' => 'apple',
		  'fruit2' => 'orange',
		  'fruit3' => 'grape',
		  'fruit4' => 'apple',
		  'fruit5' => 'apple');

	      // this cycle echoes all associative array
	      // key where value equals "apple"
	      while ($fruit_name = current($array)) {
		  if ($fruit_name == 'apple') {
		      echo key($array).'<br />';
		  }
		  next($array);
	      }
	      ?>

	      The above example will output:

	      fruit1<br />
	      fruit4<br />
	      fruit5<br />

SEE ALSO

       current(3), next(3).

PHP Documentation Group 														    KEY(3)

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