Para o bash, o PATH é definido inicialmente em /etc/profile
# Setup some default paths. Note that this order will allow user installed
# software to override 'system' software.
# Modifying these default path settings can be done in different ways.
# To learn more about startup files, refer to your shell's man page.
: ${ORIGINAL_PATH=${PATH}}
if [ ${CYGWIN_NOWINPATH-addwinpath} = "addwinpath" ] ; then
PATH="/usr/local/bin:/usr/bin${PATH:+:${PATH}}"
else
PATH="/usr/local/bin:/usr/bin"
fi
Por padrão, inclui o Windows PATH
Se você precisar modificá-lo, o melhor lugar será .bash_profile
e .bashrc