Change the regex to match requirements Example 1 (line 1) Search in packages.xml files for those that reference a given package. Example 2 (line 3) Search in csproj files for references

Hunt in files for things.sh

find . -name packages.config -exec grep -H -n '^.*System.Windows.*' {} \;

find . -name *.csproj -exec grep -H -n '^.*<Reference Include="System.Windows.Controls.Toolkit.Internals, Version=4.0.5.0, Culture=neutral, PublicKeyToken=2c5c654d367bf4a7, processorArchitecture=MSIL">' {} \;