Cicada

Latest Version

A simple, semi-toy Unix shell written in Rust.

Install Cicada Shell

Note: Rust environment is needed for installation

You can try cicada out without installing it by checking out the repository and run cargo run in its root directory.

install cicada

$ cargo install -f cicada

This will install cicada into ~/.cargo/bin/.

Or, if you've checked out the cicada repository, you can do this:

$ git clone https://github.com/mitnk/cicada $ cd cicada $ make install

This will install cicada under your /usr/local/bin. Use sudo if needed.

Set cicada as your login shell

Appending /usr/local/bin/cicada into your /etc/shells, then run $ chsh -s /usr/local/bin/cicada

Usage (Features so far)

```

run programs

$ ls Desktop Documents Downloads Dropbox Movies Music

with pipeline

$ man awk | awk -F "[ ,.\"]+" '{for(i=1;i<=NF;i++)A[$i]++}END{for(k in A)print k, A[k]}' | sort -k2nr | head -n8 the 70 of 40 a 27 is 27 and 24 are 21 in 21 to 21

with redirections

$ ls file-not-exist 2>&1 | wc > e.txt $ cat e.txt 1 7 46

do math arithmetic

$ 1 + 2 * 3 - 4 3 $ (1 + 2) * (3 - 4) / 8.0 -0.375 ```

RC File

Cicada use RC file: "~/.cicadarc". Currently only support ENVs and aliases:

```

A sample RC file

export RUSTBACKTRACE='full' export LESS="-R" export COPYFILEDISABLE=1

export PATH="/usr/local/bin:$PATH"

specify the history file,

its default path is "~/.local/share/cicada/history.sqlite"

export HISTORY_FILE=/Users/mitnk/.local/share/xonsh/xonsh-history.sqlite

alias ls="ls -G" alias ll="ls -lh" ```

Completions

Cicada currently only support simplifed completion. It uses YMAL files to define completion. Put your completion files under ~/.cicada/completers/. And one completion file is like this:

``` $ ls ~/.cicada/completers/ brew.yaml git.yaml pip.yaml vox.yaml

$ cat ~/.cicada/completers/pip.yaml - install: - --force-reinstall - -U - --upgrade - -r - --requirement - --user - download - uninstall - freeze - list - show - check - search: - --no-cache-dir - --timeout - wheel - hash - completion - help ```

After define this file, you can complete pip with $ pip ins<Tab> to get $ pip install, and $ pip install --re<Tab> to get $ pip install --requirement.

To do list

Won't do list

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