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Most people have some custom bash scripts, or aliases. The vast majority of these will work out of the box with zsh. Apart from some nice touches, like shared history, nice tab completion, globbing, and PS{1,4} being easier to customise, zsh will feel really familiar. There's a couple of config frameworks out and about for you to use, so it's probably the fastest bash alternative to set up, and get used to. Now saying it's the best replacement because it's pretty much the same is a bit of a poor argument. If nothing else, it'll become obvious that zsh is fast. If you spend some time configuring it, you'll find that some of it features are vastly more superior to bash's counterparts (eg spell check) See More
Once you've used zsh, bash feels like riding a bicycle after you get your drivers' license. See More
Zsh will take you through a procedure which is roughly 30 minutes in length before during install. Through this procedure it asks you to set different options and customize the shell the way you want it to. Most of these settings are also found in other shells, but to customize them you have to go dig configuration files while zsh allows you to do it in the beginning. See More
It works out of the box, not much configuration needed. Autocompletion is awesome - it even builds it from man pages. Great ncurses feedback and interaction! The scripting language is much more readable than POSIX. Better than bash for day-to-day use and for learning to use the CLI. See More
While other shells require a lot of set up to act the way you want them to and to have some useful features, fish works perfectly out of the box. It has all the most widely used features baked in and are there out of the box without having the need to install plugins or tweak any configuration files. See More
Fish has no support for !!, but you can use Oh My Fish shell framework and install bang-bang plugin to have this shortcut in Fish shell. The downside of using bang-bang is that it takes over ones default key bindings, for those that don't use them it should not be an issue but for those that do it is an annoyance to be considered. For sudo !!, this can also be achieved by making this custom function: function sudo
if test "$argv" = !!
eval command sudo $history[1]
else
command sudo $argv
end
end See More
Fish has no support for sudo !!, but you can use Oh My Fish shell framework and install bang-bang plugin to have this shortcut in Fish shell. This can also be achieved by making this custom function: function sudo
if test "$argv" = !!
eval command sudo $history[1]
else
command sudo $argv
end
end See More
Because it needs very little configuration to work properly, you can use Fish everywhere. If you are working on a system you don't usually work, installing Fish from the repository is easy and will give you the same experience as the installation on your own machine without having to drag a dotfile around. See More
Here is a sample. Notice that there are 2 files with spaces in names. ls produces a valid list, and for loop correctly iterated through its values. ➤ for a in (ls); ls -l $a; end
-rw-rw-r-- 1 sashka sashka 0 Apr 19 03:16 alma mater.txt
-rw-rw-r-- 1 sashka sashka 0 Apr 19 03:16 whatever i want.txt sh scripts tend to be fragile when there are lists containing values with spaces. Also: ➤ echo $PATH
/usr/bin /bin /usr/sbin /sbin /usr/local/bin
➤ echo $PATH[1]
/usr/bin
➤ echo $PATH[-1]
/usr/local/bin See More
Tcl is a saner scripting language built on the same principle as the Unix shell (everything is a string) with more than a hint of Lisp. eltclsh makes it possible to use Tcl interactively with tab completion for both language constructs and file paths. The result is that you can develop a snippet of Tcl code interactively and then paste it in your script. See More
TclVFS allows you access files inside ZIP archives or on remote HTTP and FTP servers like you would local files. If you put "package require vfs::urltype; vfs::urltype::Mount http" in your ~/.eltclshrc you can do things like "file copy http://example.com/file /tmp/file" (HTTPS is currently not supported by TclVFS.) See More
Dash is okay for quick scripts. Bash is undeniably the defacto standard, but ksh is a mainstay and all of your scripts, in order to be completely portable, should incorporate this where compatability into your scripts. zsh is nice, but with a wholly unsupported environment in all Unices, so you should best be advised to write with Bash, with compatibility for ksh, and since Mac defaults to zsh, have provisions in all of your scripts for those, for maximum portability. See More