: undo URL encoded data sed 's/%0[dD]%0[aA]/\ /g s/+/ /g s/_/ /g s/%09/ /g s/%21/!/g s/%22/"/g s/%23/#/g s/%24/$/g s/%26/\&/g s/%27/'\''/g s/%28/(/g s/%29/)/g s/%2[aA]/*/g s/%2[bB]/+/g s/%2[cC]/,/g s/%2[dD]/-/g s/%2[eE]/./g s/%2[fF]/\//g s/%3[aA]/:/g s/%3[bB]/;/g s/%3[cC]//g s/%3[fF]/?/g s/%40/@/g s/%5[bB]/[/g s/%5[cC]/\\/g s/%5[dD]/]/g s/%5[eE]/^/g s/%5[fF]/_/g s/%60/`/g s/%7[bB]/{/g s/%7[cC]/|/g s/%7[dD]/}/g s/%7[eE]/~/g s/%20/ /g s/%25/%/g'