fswatch
fswatch is a small program using the Mac OS X FSEvents API to monitor a directory.
When an event about any change to that directory is received, the specified
shell command is executed by /bin/bash
If you're on GNU/Linux,
inotifywatch (part of the
inotify-tools
package on most distributions) provides similar
functionality.
Update: fswatch
can now be used across many platforms including BSD, Debian, and Windows.
Syntax / A Simple Example
The new way that can watch multiple paths - for versions 1.x and higher:
fswatch -o ~/path/to/watch | xargs -n1 -I{} ~/script/to/run/when/files/change.sh
Note: The number output by -o
will get added to the end of the xargs
command if not for the -I{}
. If you do choose to use that number, place {}
anywhere in your command.
The older way for versions 0.x:
fswatch ~/path/to/watch ~/script/to/run/when/files/change.sh
Installation with Homebrew
As of 9/12/13 it was added back in to homebrew - yay! So, update your formula list (brew update
) and then all you need to do is:
brew install fswatch
Installation without Homebrew
Type these commands in Terminal.app
cd /tmp
git clone https://github.com/alandipert/fswatch
cd fswatch/
make
cp fswatch /usr/local/bin/fswatch
If you don't have a c
compiler on your system you may need to install Xcode or Xcode command line tools - both free. However, if that is the case, you should probably just check out homebrew.
Additional Options for fswatch
version 1.x
Usage:
fswatch [OPTION] ... path ...
Options:
-0, --print0 Use the ASCII NUL character (0) as line separator.
-1, --one-event Exit fsw after the first set of events is received.
-e, --exclude=REGEX Exclude paths matching REGEX.
-E, --extended Use exended regular expressions.
-f, --format-time Print the event time using the specified format.
-h, --help Show this message.
-i, --insensitive Use case insensitive regular expressions.
-k, --kqueue Use the kqueue monitor.
-l, --latency=DOUBLE Set the latency.
-L, --follow-links Follow symbolic links.
-n, --numeric Print a numeric event mask.
-o, --one-per-batch Print a single message with the number of change events.
in the current batch.
-p, --poll Use the poll monitor.
-r, --recursive Recurse subdirectories.
-t, --timestamp Print the event timestamp.
-u, --utc-time Print the event time as UTC time.
-v, --verbose Print verbose output.
-x, --event-flags Print the event flags.
See the man page for more information.
Best Answer
After registering with Apple as a developer, click on iOS as seen below. From there, click on "Download". Scroll through the versions until you find the one you would like, then click "Download" on the one you want!
As shown on How to add base SDK for 10.5 in xCode 4, you have to open up the installer, extract your package, and then run the installer. Once the package is installed, it should be compatible with later versions of xcode.