Some latin1 latin2 character replacement commands for linux. but first backup your computer / files
source: http://internetlifeforum.com/general-server-webmaster-discussion/473-how-convert-file-one-character-set-another-via-command-line/

sed -i 's/ĂŠ/é/g' filename;
sed -i 's/Ă˝/ý/g' filename;
sed -i 's/řĂ/ří/g' filename;
sed -i 's/Ă­Ĺ/íř/g' filename;
sed -i 's/Ă­m/ím/g' filename;
sed -i 's/ĂŠ/é/g' filename;
sed -i 's/ĹĄĂ/ší/g' filename;
sed -i 's/če/če/g' filename;
sed -i 's/řá/řá/g' filename;
sed -i 's/čů/čů/g' filename;
sed -i 's/čí/čí/g' filename;
sed -i 's/ňů/ňů/g' filename;
sed -i 's/ĹĄ/š/g' filename;
sed -i 's/ĹŻ/ů/g' filename;
sed -i 's/jĂ/jí/g' filename;
sed -i 's/jĂ/jí/g' filename;
sed -i 's/Ă­b/íb/g' filename;
sed -i 's/ĂĄ/á/g' filename;
sed -i 's/Ĺ/ř/g' filename;
sed -i 's/Ä/ě/g' filename;
sed -i 's/Ă­ /í /g' filename;