KSH For Loop Array: Iterate Through Array Values

by on July 7, 2009 · 4 comments· LAST UPDATED July 7, 2010


How do I use ksh for loop to iterate thought array values under UNIX / Linux / BSD operating systems?

You can define array as follows:

set -A arrayName value1 value2 value3

For example, create an array called characters with three values as follows:

set -A characters Mugen Jin Fuu

To print first value, enter:

echo ${characters[0]}

To print 3rd and last value, enter:

echo ${characters[2]}

To print all values, enter:

echo ${characters[@]}

To count number of items in an array called characters, enter:

echo ${#characters[@]}

You can use for loop as follows to iterate through all values:

for i in ${characters[@]}; do echo "Samurai Champloo character - $i"; done

Sample outputs:

Samurai Champloo character - Mugen
Samurai Champloo character - Jin
Samurai Champloo character - Fuu

You can add two more items as follows to exiting array:


Sample Shell Script

# set array called nameservers
set -A nameservers
# print all name servers
for i in ${nameservers[@]
	echo $i
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{ 4 comments… read them below or add one }

1 Nisrine August 19, 2011 at 7:05 am

If i need to print the next value in the array if a certain condition is verified
for example:
for i in “${array[@]}”
if(….) then
echo $(i+1)

$(i+1) is wrong what can i do?


2 Jason October 16, 2012 at 12:26 pm

Hi Nisrine,

I hope my necromancing is welcome here, in case your issue is still relevant.

$(ì+1) should actually be $((i+1)), since double parentheses evaluate mathematical expressions.

I hope this helps someone!



3 Nisrine October 16, 2012 at 2:14 pm

Thank you for ur reply! working!


4 Ken June 18, 2012 at 9:21 pm

Excellent just what i needed for looping through an array


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