Gem output fixups

libexec/mcd/mcd-gem

@@ -37,13 +37,13 @@ case $1 in
     seth --abi-decode 'f()(address)' "$gem"
   ;;
   name)
-    mcd ilks | sed -n "/$MCD_ILK/p" | awk '{$1=$2=$3=""; print $0}' | sed 's/^ *//g'
+    mcd ilks | sed -n "/^$MCD_ILK/p" | awk '{$1=$2=$3=""; print $0}' | sed 's/^ *//g'
   ;;
   symbol)
-    mcd ilks | sed -n "/$MCD_ILK/p" | awk '{print $2}'
+    mcd ilks | sed -n "/^$MCD_ILK/p" | awk '{print $2}'
   ;;
   decimals)
-    mcd ilks | sed -n "/$MCD_ILK/p" | awk '{print $3}'
+    mcd ilks | sed -n "/^$MCD_ILK/p" | awk '{print $3}'
   ;;
   balance)
     mcd-gem-balance "$2";

libexec/mcd/mcd-gem-balance

@@ -19,14 +19,16 @@ case $1 in
   "")   {
     exec 3< <(mcd gem balance vat)
     exec 4< <(mcd gem balance ink)
-    exec 5< <(mcd gem balance ext)
     echo "vat $(cat <&3) Unlocked collateral ($gem)"
     echo "ink $(cat <&4) Locked collateral ($gem)"
-    echo "ext $(cat <&5) External account balance ($gem)"
-    if [[ "$gem" == "WETH" ]]; then
-      eth=$(mcd --to-wad "$(seth --to-hex "$(seth balance "$ETH_FROM")")")
-      echo "eth $eth External account balance (ETH)"
-      echo
+    if [[ ! -z "$ETH_FROM" ]]; then
+      exec 5< <(mcd gem balance ext)
+      echo "ext $(cat <&5) External account balance ($gem)"
+      if [[ "$gem" == "WETH" ]]; then
+        eth=$(mcd --to-wad "$(seth --to-hex "$(seth balance "$ETH_FROM")")")
+        echo "eth $eth External account balance (ETH)"
+        echo
+      fi
     fi
   };;
   *)   { mcd gem balance; };;