Once you have the source you can follow the build directions.
Jsi is version-controlled using fossil.
So pulling down the Jsi fossil repository simplifies keeping current:
fossil clone http://jsish.org/jsi jsi.fossil fossil open ../jsi.fossil cd jsi ./configure make
If you need to get the fossil application:
- On Ubuntu: "apt-get install fossil", or
- Get it from http://www.fossil-scm.org/index.html/uv/download.html
Specific releases are on Sourceforge.
However, only a few releases are available this way, as Jsi source is now actually managed via fossil.
You can download a binary for Linux or Windows from http://sourceforge.net/projects/jsish/files/.
This is the fastest way to give jsish a test drive without having to build anything. But it is also the least flexible.
caveat: Binaries have no readline support. Although on Linux you can run with: rlwrap jsish to get command-line editing.