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Full Discussion: For loop to break apart word
Top Forums Shell Programming and Scripting For loop to break apart word Post 302778183 by SkySmart on Sunday 10th of March 2013 01:41:07 AM
Old 03-10-2013
For loop to break apart word
Code:
notimes=5
word=excellency

the word excellency contains 10 letters. 10 letters divided by 2 = 5. which means, 5 two-groups of letters are in the word excellency.

i need to perform a function on each group of letters. but the only thing i can think of is the following, which i just know isn't efficient:

Code:
while [ $notimes -le 5 ] ; 
do
lum1=$(echo $word | cut -c1-2)
lum2=$(echo $word | cut -c3-4)
lum3=$(echo $word | cut -c5-6)
lum4=$(echo $word | cut -c7-8)
lum5=$(echo $word | cut -c9-10)
mycommand lum1 lum2 ......
 
done

in the above scenario, we know the word (excellency). but in the scenario this script will work on, the words will be unknown. but the number of characters in whatever the word is will always be divided by 2.

in the above while loop scenario, i knew the number of characters in the word, because i knew the word, so i hardcoded the "cut" command to break it apart. but that wont be case when this script is put to work.

how can i automate the while loop? awk?
Last edited by SkySmart; 03-10-2013 at 03:53 AM..
 

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LEARN ABOUT OSF1

deroff

deroff(1)						      General Commands Manual							 deroff(1)

NAME

       deroff - Deletes neqn, nroff, and tbl constructs

SYNOPSIS

       deroff [-i  | -l] [-kpuw] [-ma  | -me  | -mm  | -ms] file...

       deroff [-i  | -l] [-kpuw] -mm  -ml  file...

       The deroff command reads the specified files (or standard input by default), removes all nroff requests, macro calls, backslash constructs,
       eqn constructs (between and lines and between delimiters), and tbl descriptions, replacing many of them with spaces  or	blank  lines,  and
       writes the remainder of the file to standard output.

OPTIONS

       Suppresses  processing  of  included  files  (.so and Keeps blocks of text specified by requests or macros; for example, the request.  Sup-
       presses processing of included files whose names begin with /usr/lib (such as macro files in /usr/lib/tmac).  Interprets man  macros  only.
       Interprets  me  macros  only.  Ignores mm macros and deletes mm list structures. The -mm option must be specified with this option.  Inter-
       prets ms and mm macros only.  Interprets ms macros only.  Performs special paragraph processing.  Removes _  and    in  underlined  and
       boldfaced  words.  Automatically sets the -w option.  Formats output into a word list, containing one word per line, with all other charac-
       ters deleted.

       In text, a word is any string that contains at least two letters and is composed of letters, digits, ampersands (&), and  apostrophes  (').
       In  a  macro call, a word is a string that begins with at least two letters and contains a total of at least three letters.  Delimiters are
       any characters other than letters, digits, ampersands, and apostrophes.

       Trailing ampersands and apostrophes are removed from words.

DESCRIPTION

       The deroff command normally follows chains of included files (.so and requests) and processes those files.  If a file was already included,
       a naming it is ignored and a

																	 deroff(1)
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