![How to extract a number from a string using Bash example - Linux Tutorials - Learn Linux Configuration How to extract a number from a string using Bash example - Linux Tutorials - Learn Linux Configuration](https://linuxconfig.org/wp-content/uploads/2014/12/00-how-to-extract-number-from-a-string-using-bash-example.png)
How to extract a number from a string using Bash example - Linux Tutorials - Learn Linux Configuration
nixCraft - Use bash 4.x parameter expansion to convert string on a Linux/Unix/macOS/*BSD: var="This is a test" echo "${var~~}" # Reverse var # echo "${var^^}" # UPPERCASE var # echo "${var,,}" #
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