Some problems with array

Initialize an array

arr=(<element1> <element2> ...)
#===================================================
# example
arrNum=(1 2 3 4)

Access elements

${<NameOfArray>[index]}
#===================================================
# example
echo ${arrNum[1]}    # => 2

Print all elements

${<NameOfArray>[*]}    
# or 
${<NameOfArray>[@]}
#===================================================
# example
echo ${arrNum[*]}    # => 1 2 3 4

Get lengh

${#<NameOfArray>[*]} 
# or 
${#<NameOfArray>[@]}
#===================================================
# example
echo ${#arrNum[*]}    # => 4

——— Have fun! 🙂 ———

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s