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To convert a string to lowercase in Bash, we can use the `tr` command. The `tr` command is used to translate or delete characters. We can use it to translate uppercase characters to lowercase characters.
Here is an example code snippet that demonstrates how to use the `tr` command to convert a string to lowercase:
echo "HELLO WORLD" | tr '[:upper:]' '[:lower:]'
In this example, we are using the `echo` command to output the string “HELLO WORLD”. We then pipe the output to the `tr` command. The `tr` command translates all uppercase characters to lowercase characters.
The output of this command will be:
We can also use variables to store the string we want to convert to lowercase. Here is an example:
myString="THIS IS A TEST"
echo $myString | tr '[:upper:]' '[:lower:]'
In this example, we are storing the string “THIS IS A TEST” in the variable `myString`. We then use the `echo` command to output the value of the variable. We pipe the output to the `tr` command to convert the string to lowercase.
In conclusion, converting a string to lowercase in Bash is a simple task that can be accomplished using the `tr` command. By using this command, we can easily translate all uppercase characters to lowercase characters.