How can I extract the content following a specific string in the shell?

We can use string manipulation in a shell script to extract the content after a specific string. The specific method is as follows:

1. Use the “#” character to delete the content in front of the string.

str="Hello World"
result="${str#*o}"
echo $result  # 输出： World

In the code above, ${str#*o} removes the first occurrence of the character “o” and all characters before it in the string.

1. Use the “##” character to remove the content before the string (greedy matching):

str="Hello World"
result="${str##*o}"
echo $result  # 输出： rld

In the above code, ${str##*o} means deleting the last occurrence of the character “o” and its preceding content from the string.

Please choose the appropriate method of string truncation based on specific needs.