通常，您可以检查它们是否在$ PATH上，如果它们不在$ PATH上，请安装它们。
对于蚂蚁：
ant -v代表冗长，ant -version打印出其版本。
-help, -h
print help on the command line options
-projecthelp, -p
gives information on possible targets for this project
-version
prints the version number and then exits ant
-quiet, -q
be extra quiet
-verbose, -v
be extra verbose
-debug, -d
print debugging information
-emacs, -e
produce logging information without adornments
-logfile <file>, -l <file>
use the given file to output log to
-logger <classname>
the class which is to perform logging
-listener <classname>
add an instance of the given class as a project listener
-noinput
do not allow interactive input
-buildfile <file>, -file <file>, -f <file>
use the given buildfile instead of the default build.xml file.
This is the ant equivalent of Makefile
-D<property>=<value>
use value for the given property
-keep-going, -k
execute all targets that do not depend on Failed target(s)
-propertyfile <file>
load all properties from file with -D properties taking prece-
dence
-inputhandler <class>
the class which will handle input requests
-find <file>, -s <file>
(s)earch for buildfile towards the root of the filesystem and
use it
-nice number
A niceness value for the main thread: 1 (lowest) to 10 (high-
est); 5 is the default
-nouserlib
Run ant without using the jar files from ${user.home}/.ant/lib
-noclasspath
Run ant without using CLASSPATH
-autoproxy
Java 1.5+ : use the OS proxies
-main <class>
override ant's normal entry point
对于tomcat：
如果tomcat / bin在$ PATH变量上，则version.sh将打印出该版本。
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