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Full Discussion: Using nested for loop to iterate over file names
Top Forums Shell Programming and Scripting Using nested for loop to iterate over file names Post 302932508 by Don Cragun on Thursday 22nd of January 2015 04:22:59 AM
Old 01-22-2015
Telling us what OS and shell you're using helps us create a solution that will work in your environment.

With a 1993 or later version of ksh or with a recent bash, here are a couple of ways to do what you seem to want:
Code:
#!/bin/ksh
files=( AAA BBB CCC DDD EEE FFF GGG HHH III JJJ KKK LLL MMM NNN OOO PPP QQQ)

total=${#files[@]}
echo "Total files in array : $total"

echo 'Using nested for loops...'
fileset=""
for (( i = 0 ; i < total ; i += 5 ))
do	for ((j = 0; j < 5 && (i + j) < total; j++))
	do	fileset="$fileset ${files[i + j]}"
	done
	echo $fileset
	fileset=""
done

echo 'Using array subsets...'
for ((i = 0; i < total; i += 5))
do	fileset="${files[@]:i:5}"
	echo "$fileset"
done

which (with both of those shells) produces the output:
Code:
Total files in array : 17
Using nested for loops...
AAA BBB CCC DDD EEE
FFF GGG HHH III JJJ
KKK LLL MMM NNN OOO
PPP QQQ
Using array subsets...
AAA BBB CCC DDD EEE
FFF GGG HHH III JJJ
KKK LLL MMM NNN OOO
PPP QQQ

 

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LEARN ABOUT HPUX

dce_version

dce_version(8)															    dce_version(8)

NAME

       dce_version - print version information for HP DCE/9000 components

SYNOPSIS

       /opt/dcelocal/etc/dce_version [-uvlG] [-g group_list] [-f version_file] [files ... ]

OPTIONS

       -u	 Print a usage message.

       -v	 Print DCE version.  This is the default behavior.

	-l	 List available groups of interesting files.

       -F	 Print the name of the default version information file.

       -G	 Search files in all groups for what strings.

       -g group_list
		 Search  files	in  groups specified by group_list for what strings.  group_list is a comma or white-space-separated list of group
		 names.  The available group names can be listed with -l.

       -f version_file
		 Specify an alternate version information file to use.	 The  version  information  file  contains  the  DCE  version  string  and
		 group/file lists.  The default version information file is /opt/dcelocal/etc/dce_vinfo.

DESCRIPTION

       By  default,  dce_version prints the version of DCE that is currently installed.  It can also print the what strings for one or more groups
       of ``interesting'' DCE files, list the available group names and descriptions, or search any specified file for	DCE  what  strings.   More
       than one action can be specified in a single invocation of dce_version.

       Filenames to be searched for DCE what strings should be specified after any command line options.

FILES

       /opt/dcelocal/etc/dce_vinfo

SEE ALSO

       what(1)

HP DCE
																    dce_version(8)
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