Cicada

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

$ 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 RUST_BACKTRACE='full'
export LESS="-R"
export COPYFILE_DISABLE=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

see doc (to add)

To do list

• Special characters
• Shell expansion
• job controls (Ctrl-Z, fg, bg etc)
• and less...

Won't do list

• functions
• Windows support
• and more...

Related projects

• xonsh - A python-powered, cross-platform, Unix-gazing shell.