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Full Discussion: Longest length of string in array
Top Forums Shell Programming and Scripting Longest length of string in array Post 302572246 by mmab on Wednesday 9th of November 2011 12:11:54 PM
Old 11-09-2011
Longest length of string in array
I would be grateful if someone could help me. I am trying to write a .sh script in UNIX.

I have the following code;
Code:
User[0]=john
User[1]=james
User[2]=ian
User[3]=martin
 
for x in ${User[@]}
do
  print ${#x}
done

This produces the following output;
Code:
4
5
3
6

What I would like to do is only print the longest length of string, in this case '6'. (I will also be storing the single result in a variable for later use). I have experimented with awk & gawk etc and I'm really struggling. The above code is a very simple breakdown of a more complicated problem, but if someone could solve the above it would make a big difference.

Appologies if this is very straight forward, quite new to this.
Regards

---------- Post updated at 05:11 PM ---------- Previous update was at 05:02 PM ----------

I should of added that i need to keep the for loop, hopefully there is a way of doing it within this kind of loop.
Last edited by Scott; 11-09-2011 at 01:23 PM.. Reason: Please use code tags
 

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LEARN ABOUT CENTOS

paps

PAPS(1) 						      General Commands Manual							   PAPS(1)

NAME

       paps - UTF-8 to PostScript converter using Pango

SYNOPSIS

       paps [options] files...

DESCRIPTION

       paps reads a UTF-8 encoded file and generates a PostScript language rendering of the file. The rendering is done by creating outline curves
       through the pango ft2 backend.

OPTIONS

       These programs follow the usual GNU command line syntax, with long options starting with  two  dashes  (`-').   A  summary  of  options	is
       included below.

       --landscape
	      Landscape output. Default is portrait.

       --columns=cl
	      Number of columns output. Default is 1.

       --font=desc
	      Set the font description. Default is Monospace 12.

       --rtl  Do rtl layout.

       --paper ps
	      Choose paper size. Known paper sizes are legal, letter, a4. Default is A4.

       --bottom-margin=bm
	      Set bottom margin in postscript points (1/72 inch). Default is 36.

       --top-margin=tm
	      Set top margin. Default is 36.

       --left-margin=lm
	      Set left margin. Default is 36.

       --right-margin=rm
	      Set right margin. Default is 36.

       --help Show summary of options.

       --header
	      Draw page header for each page.

       --markup
	      Interpret the text as pango markup.

       --encoding=ENCODING
	      Assume the documentation encoding is ENCODING.

       --lpi  Set the lines per inch. This determines the line spacing.

       --cpi  Set the characters per inch. This is an alternative method of specifying the font size.

       --stretch-chars
	      Indicates  that  characters  should be stretched in the y-direction to fill up their vertical space. This is similar to the texttops
	      behaviour.

AUTHOR

       paps was written by Dov Grobgeld <dov.grobgeld@gmail.com>.

       This manual page was written by Lior Kaplan <kaplan@debian.org>, for the Debian project (but may be used by others).

								  April  17, 2006							   PAPS(1)
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