Storing values in an array using shell scripting

Question

This works fine since because i'm directly inputting the data.

declare -a arr
arr=( $(awk '/123456789/{print NR}' filename) )
echo ${arr[0]}
echo ${arr[*]}

Bt when i do as below, it doesn't work. Can u let me know how the parameter 'name' can be used in the command below :

echo  Enter your search string:  
read name
declare -a arr
arr=( $(awk '/"$name"/{print NR}' filename )
echo ${arr[0]}
echo ${arr[*]}

anubhava · Accepted Answer · 2012-06-05 08:07:57Z

2

Based on your comments I am posting this answer. This is the script that will work for you:

read -e -p "Enter your search string: " name
#echo "name: [$name]"
declare -a arr
arr=( $(awk /"$name"'/{print NR}' x ) )
echo ${arr[0]}
echo ${arr[*]}

answered Jun 5, 2012 at 8:07

anubhava

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8 Comments

Jackie James Over a year ago

@ Anubhava : Thank U. Your comments and modifications in the script are very helpful But what's wrong in the above script ?

anubhava Over a year ago

@JackieJames: Sorry to respond late, I think you've figured it out that your script had one missing right parenthesis ) in awk command.

Jackie James Over a year ago

@ Anubhava : No, not paranthesis it's misplace of single quote. arr=( $(awk /"$name"'/{print NR}' x ) ) correct arr=( $(awk /"$name"/'{print NR}' filename ) misplace of single quote

Jackie James Over a year ago

@ Anubhava : Can you please look into this 'Is it possible to write the below code in shell script?' This is another different post.

Jackie James Over a year ago

@ Anubhava : Can u please check the post by title "Is it possible to write the below code in shell script?"

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Jens · Accepted Answer · 2012-06-05 13:13:14Z

1

arr=( $(awk /"$name"/'{print NR}' filename ) )

edited Jun 5, 2012 at 13:13

answered Jun 5, 2012 at 7:14

Jens

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3 Comments

Jackie James Over a year ago

echo enter the string to be searched : read name declare -a arr arr=( $(awk /"$name"/'{print NR}' filename ) echo ${arr[0]} echo ${arr[*]} Output : enter the string to be searched : 123456789 ./newarray.sh: line 4: unexpected EOF while looking for matching `)'

Jackie James Over a year ago

@ Jens : Your command is right but there is a misplace of single quote. arr=( $(awk /"$name"'/{print NR}' filename ) ) Thank U, Anubhava :)

Jens Over a year ago

No, there's no misplacement. There are no spaces around the / so the shell parses /"$name"/'{print NR}' as one token.

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