mktemp:tldr:a061b
mktemp: Create an empty temporary file with a given suffix and print the absolute path to file.
$ mktemp --suffix "${-ext}"
try on your machine
The mktemp command is used to create unique temporary files and directories.
In this specific example, mktemp --suffix "${-ext}", the --suffix option is used to provide a custom suffix for the generated temporary file.
The "$-ext" part is likely a variable that contains the desired suffix. The "$" is used to access the value of a variable in shell scripting. So, it would be replaced by the actual value of the variable.
For example, if the variable $-ext holds the value ".txt", then the command would create a temporary file with a suffix of ".txt".
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.