In bash scripting, the conversion of the string is important for arithmetic operations. You can not perform the arithmetic operations on the string representation numbers. Also, the string conversion is important for data validation, comparison, and formatting output. So, for effective and efficient scripting, a clear concept of how to convert a bash string to int (integer) is essential.<\/p>\n
To convert a string into an int( integer) in bash, check the following methods:<\/p>\n
$((input_string))<\/code><\/li>\n- Using the expr command:
expr EXPRESSION<\/code><\/li>\n- Using the let command:
let EXPRESSION<\/code><\/li>\n- Using the bc command:
echo "expression" | bc [options]<\/code><\/li>\n- Using the awk command:\u00a0
echo "input_str" | awk 'pattern { action }'<\/code><\/li>\n- Using the perl command:
perl [options] -e 'action'<\/code><\/li>\n- Using a loop with conditional statements<\/li>\n
- Using the python command:
python3 [option] {action}<\/code>.<\/li>\n<\/ol>\n