"zip" =>'unzip -Lq $pathname',
"jar" =>'unzip -Lq $pathname',
"xpi" =>'unzip -Lq $pathname',
+ "crx" =>'unzip -Lq $pathname',
"a" =>'ar x $pathname',
"deb" =>'ar x $pathname;'
.'for i in *.tar.gz;do j=`basename $i .tar.gz`;mkdir -p $j;cd $j;tar xzf ../$i;cd ..;rm -f $i;done',