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drewdevault.com
Drew
@drewdevault.com
2 followers 11 following 7 posts
I write free and open source software for fun and for a living.
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drewdevault.com
A terminal session begins by listing the contents of the current directory, which contains three files; "hello", "world" and "hello world". The filename variable is set to "hello world" and then rm $filename is executed, without quoting the variable. The directory contents are listed again, showing "hello" and "world" left behind.
January 26, 2026 at 9:35 AM
drewdevault.com
Can your shell do this?
A terminal session demonstrating features of the xc shell. A list of three items, "echo", "hello", and "world", is assigned to a variable, and then various ways of utilizing this list are demonstrated. $x prints "hello world". Two printf commands are used to show that $x expands into three arguments, but $"x expands into just one. The use of $x(1) and $x(2-) demonstrate access to individual list items and a subset of items respectively.
January 26, 2026 at 9:31 AM