New Features In Bash Version 4.x - Part 1
In February of 2009 however a new major version of bash (4.0) appeared and it began to show up in distributions last fall. Today the current version of bash is 4.1 and it, too ,is beginning to show up in distributions such as Ubuntu 10.04 and (I presume, since I haven't checked yet) Fedora 13.
So what's new in bash? A bunch of things, though most of them tend to be rather small. In this series we will look at features that, I feel, are of the most use to ordinary shell users starting with a couple of the small ones.
Better help
The help command, which is used to display documentation for the shell's builtin commands, got some much needed attention in the new version of bash. The command has some new options and the help text itself has been reformatted and improved. For example, here is the result of the help cd command in bash 3.2:
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