If you have an existing O'Reilly or Microsoft Press book, you can get $4.99 E-book upgrade.
The details are at https://members.oreilly.com/account/benefits but you do need to to create a free logon to see it.

If you have an existing O'Reilly or Microsoft Press book, you can get $4.99 E-book upgrade.
The details are at https://members.oreilly.com/account/benefits but you do need to to create a free logon to see it.

I let a tool I liked sit dead for a year rather than build the features I wanted. An MCP server meant I never had to, and your customers can do the same to your product.
du -sh for the quick answer, ncdu for the cleanup, df for the disk itself: every command for checking directory size in Linux, plus why du and df never agree.
One :%s command replaces every match in a file before a find dialog would even open. The Vim substitute patterns worth the muscle memory: flags, ranges, capture groups, and multi-file edits.
Your existing team is buried in the complexity of your existing product. AI rewards the team with a blank slate. Most companies don't have one.