A utility for running arbitrary commands when files change. Uses kqueue(2) or
inotify(7) to avoid polling. entr was written to make rapid feedback and
automated testing natural and completely ordinary.
./configure
make test
make install
To see available build options run ./configure -h
Incomplete inotify support on Windows Subsystem for Linux and Docker for Mac can
cause entr to respond inconsistently. Setting the environment variable
ENTR_INOTIFY_WORKAROUND will enable entr to operate in these environments.
Symlinks can be monitored for changes by setting the environment variable
ENTR_INOTIFY_SYMLINK.
Rebuild a project if source files change, limiting output to the first 20 lines:
$ find src/ | entr sh -c 'make | head -n 20'
Launch and auto-reload a node.js server:
$ ls *.js | entr -r node app.js
Clear the screen and run a query after the SQL script is updated:
$ echo my.sql | entr -cp psql -f /_
Rebuild project if a source file is modified or added to the src/ directory:
$ while sleep 0.1; do ls src/*.rb | entr -d make; done
Auto-reload a web server, or terminate if the server exits
$ ls * | entr -rz ./httpd
A release history as well as features in the upcoming release are covered in the NEWS file.