What is the Linux bash or sed command that can be used to increase a version number?

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One option is to use the sed command to search for the version number pattern and replace it with an incremented value. For example, if the version number is in the format "x.y.z", the command could be:

sed -i 's/\(.*\)\.\(.*\)\.\(.*\)/\1.$((\2+1)).\3/' version.txt

This command will find the version number in the file "version.txt" and increment the middle number. Alternatively, if you just want to increment the last number, you can use:

sed -i 's/\(.*\)\.\(.*\)\.\([^\.]*\)$/\1.\2.$((\3+1))/' version.txt

This command will increment the last number in the version string.