bash + for loop + output index number and element bash + for loop + output index number and element bash bash

bash + for loop + output index number and element


arrays bash printf

You can iterate over the indices of the array, i.e. from 0 to ${#array[@]} - 1.

#!/usr/bin/basharray=(one two three)# ${#array[@]} is the number of elements in the arrayfor ((i = 0; i < ${#array[@]}; ++i)); do    # bash arrays are 0-indexed    position=$(( $i + 1 ))    echo "$position,${array[$i]}"done

Output

1,one2,two3,three

arrays bash printf

The simplest way to iterate seems to be:

#!/usr/bin/basharray=(one two three)# ${!array[@]} is the list of all the indexes set in the arrayfor i in ${!array[@]}; do  echo "$i, ${array[$i]}"done

Recent Posts
How can I color dots in a xy scatterplot according to column value?
How to update a claim in ASP.NET Identity?
What does {0} mean when initializing an object?
Accessing members of items in a JSONArray with Java
How to log SQL statements in Spring Boot?
Powershell Get-WebSite name parameter is ignored
How to detect scroll to bottom of html element
Java synchronized method
How to test controllers with CodeIgniter?
Detect Visual Composer
Matplotlib: Specify format of floats for tick labels
Rails join a list of strings with commas and "and" before the last