5 Posts Tagged ‘zsh’

Zsh: manipulate filenames with modifiers like `:r` (root) and `:e` (extension)

2026-08-24

Zsh modifiers are a family of suffixes that transform words as they’re expanded. Several of them are dedicated to slicing up filenames, replacing fiddly calls to dirname, basename, and friends. Let’s take a look at them now!

Zsh: select files with arbitrary code in `(e)` or `+` glob qualifiers

2026-08-07

Zsh glob qualifiers can select files by many built-in attributes: type, size, modification time, and more. But when no built-in qualifier fits, you can bring in the e or + qualifiers to run arbitrary code, making globs a fully programmable file filter. With great power comes great responsibility!

Zsh: list recently modified files with `(m0)` glob qualifiers

2026-08-04

My downloads directory is a junk pile that I just never get around to fully clearing. So if I’ve just downloaded a bunch of files, I normally want to work with them and ignore the rest of the files.

Zsh: select generated files with `(om[1])` glob qualifiers

2026-01-27

I’ve recently been using memray, a memory profiler for Python, to optimize the startup memory usage (and time) for a client. It’s a fantastic tool, but its flexibility hampers getting instant feedback. It takes three commands to profile a program, generate a flame graph from the profile, and open the flame graph in the browser: