diff --git a/bin/scripts/unix/idea.sh b/bin/scripts/unix/idea.sh
index e6b6d7e3d2c8..25606d590da7 100755
--- a/bin/scripts/unix/idea.sh
+++ b/bin/scripts/unix/idea.sh
@@ -6,7 +6,7 @@
 #
 
 UNAME=`which uname`
-GREP=`which grep`
+GREP=`which egrep`
 GREP_OPTIONS=""
 CUT=`which cut`
 READLINK=`which readlink`
@@ -80,7 +80,7 @@ VERSION_LOG=`"$MKTEMP" -t java.version.log.XXXXXX`
 "$JDK/bin/java" -version 2> "$VERSION_LOG"
 "$GREP" 'OpenJDK' "$VERSION_LOG"
 OPEN_JDK=$?
-"$GREP" "64-Bit\|x86_64" "$VERSION_LOG"
+"$GREP" "64-Bit|x86_64" "$VERSION_LOG"
 BITS=$?
 "$RM" -f "$VERSION_LOG"
 if [ $OPEN_JDK -eq 0 ]; then
@@ -136,7 +136,7 @@ if [ -z "$VM_OPTIONS_FILE" ]; then
 fi
 
 if [ -r "$VM_OPTIONS_FILE" ]; then
-  VM_OPTIONS=`"$CAT" "$VM_OPTIONS_FILE" | "$GREP" -ve "^#.*" | "$TR" '\n' ' '`
+  VM_OPTIONS=`"$CAT" "$VM_OPTIONS_FILE" | "$GREP" -v "^#.*" | "$TR" '\n' ' '`
   VM_OPTIONS="$VM_OPTIONS -Djb.vmOptionsFile=\"$VM_OPTIONS_FILE\""
 fi