3 signal-cli is a commandline interface for
[libsignal-service-java](https://github.com/WhisperSystems/libsignal-service-java). It supports registering, verifying, sending and receiving messages.
4 To be able to link to an existing Signal-Android/signal-cli instance, signal-cli uses a
[patched libsignal-service-java](https://github.com/AsamK/libsignal-service-java), because libsignal-service-java does not yet support
[provisioning as a slave device](https://github.com/WhisperSystems/libsignal-service-java/pull/21).
5 For registering you need a phone number where you can receive SMS or incoming calls.
6 signal-cli is primarily intended to be used on servers to notify admins of important events. For this use-case, it has a dbus interface (
[man page](https://github.com/AsamK/signal-cli/blob/master/man/signal-cli-dbus.5.adoc)), that can be used to send messages from any programming language that has dbus bindings.
10 You can
[build signal-cli](#building) yourself, or use the [provided binary files](https://github.com/AsamK/signal-cli/releases/latest), which should work on Linux, macOS and Windows. For Arch Linux there is also a
[package in AUR](https://aur.archlinux.org/packages/signal-cli/) and there is a
[FreeBSD port](https://www.freshports.org/net-im/signal-cli) available as well.
13 - at least Java Runtime Environment (JRE)
11
14 - native libraries: libzkgroup, libsignal-client
16 Those are bundled for x86_64 Linux, for other systems/architectures see:
[Provide native lib for libsignal](https://github.com/AsamK/signal-cli/wiki/Provide-native-lib-for-libsignal)
18 ### Install system-wide on Linux
19 See
[latest version](https://github.com/AsamK/signal-cli/releases).
21 export VERSION=<latest version, format "x.y.z">
22 wget https://github.com/AsamK/signal-cli/releases/download/v"${VERSION}"/signal-cli-"${VERSION}".tar.gz
23 sudo tar xf signal-cli-"${VERSION}".tar.gz -C /opt
24 sudo ln -sf /opt/signal-cli-"${VERSION}"/bin/signal-cli /usr/local/bin/
26 You can find further instructions on the Wiki:
27 - [Quickstart](https://github.com/AsamK/signal-cli/wiki/Quickstart)
28 - [DBus Service](https://github.com/AsamK/signal-cli/wiki/DBus-service)
32 For a complete usage overview please read the
[man page](https://github.com/AsamK/signal-cli/blob/master/man/signal-cli.1.adoc) and the
[wiki](https://github.com/AsamK/signal-cli/wiki).
34 Important: The USERNAME is your phone number in international format and must include the country calling code. Hence it should start with a "+" sign. (See
[Wikipedia](https://en.wikipedia.org/wiki/List_of_country_calling_codes) for a list of all country codes.)
36 * Register a number (with SMS verification)
38 signal-cli -u USERNAME register
40 You can register Signal using a land line number. In this case you can skip SMS verification process and jump directly to the voice call verification by adding the
`--voice` switch at the end of above register command.
42 Registering may require solving a CAPTCHA challenge:
[Registration with captcha](https://github.com/AsamK/signal-cli/wiki/Registration-with-captcha)
44 * Verify the number using the code received via SMS or voice, optionally add
`--pin PIN_CODE` if you've added a pin code to your account
46 signal-cli -u USERNAME verify CODE
50 signal-cli -u USERNAME send -m "This is a message" RECIPIENT
52 * Pipe the message content from another process.
54 uname -a | signal-cli -u USERNAME send RECIPIENT
58 signal-cli -u USERNAME receive
63 The password and cryptographic keys are created when registering and stored in the current users home directory:
65 `$XDG_DATA_HOME/signal-cli/data/` (
`$HOME/.local/share/signal-cli/data/`)
67 For legacy users, the old config directories are used as a fallback:
69 $HOME/.config/signal/data/
71 $HOME/.config/textsecure/data/
75 This project uses
[Gradle](http://gradle.org) for building and maintaining
76 dependencies. If you have a recent gradle version installed, you can replace
`./gradlew` with
`gradle` in the following steps.
78 1. Checkout the source somewhere on your filesystem with
80 git clone https://github.com/AsamK/signal-cli.git
86 3. Create shell wrapper in *build/install/signal-cli/bin*:
90 4. Create tar file in *build/distributions*:
94 ### Building a native binary with GraalVM (EXPERIMENTAL)
96 It is possible to build a native binary with
[GraalVM](https://www.graalvm.org).
97 This is still experimental and will not work in all situations.
99 1.
[Install GraalVM and setup the enviroment](https://www.graalvm.org/docs/getting-started/#install-graalvm)
100 2.
[Install prerequisites](https://www.graalvm.org/reference-manual/native-image/#prerequisites)
103 ./gradlew assembleNativeImage
105 The binary is available at *build/native-image/signal-cli*
107 ## FAQ and Troubleshooting
108 For frequently asked questions and issues have a look at the
[wiki](https://github.com/AsamK/signal-cli/wiki/FAQ)
112 This project uses libsignal-service-java from Open Whisper Systems:
114 https://github.com/WhisperSystems/libsignal-service-java
116 Licensed under the GPLv3: http://www.gnu.org/licenses/gpl-
3.0.html