diff --git a/attacks/Captive Portal/attack.sh b/attacks/Captive Portal/attack.sh
index 6313353..ec8b204 100755
--- a/attacks/Captive Portal/attack.sh	
+++ b/attacks/Captive Portal/attack.sh	
@@ -854,7 +854,7 @@ while [ \$AuthenticatorState = \"running\" ]; do
         # Aircrack-ng
         # Check if we've got the correct password by looking for
         # anything other than \"Passphrase not in\" or \"KEY NOT FOUND\".
-        local -r verifiedCondition="aircrack-ng -b $FluxionTargetMAC -w \"$FLUXIONWorkspacePath/candidate.txt\" \"$CaptivePortalHashPath\" | egrep -qi \"Passphrase not in|KEY NOT FOUND\""
+        local -r verifiedCondition="aircrack-ng -b $FluxionTargetMAC -w \"$FLUXIONWorkspacePath/candidate.txt\" \"$CaptivePortalHashPath\" | grep -Eqi \"Passphrase not in|KEY NOT FOUND\""
         ;;
     esac
     echo "
diff --git a/attacks/Captive Portal/language/hu.sh b/attacks/Captive Portal/language/hu.sh
old mode 100644
new mode 100755
diff --git a/attacks/Handshake Snooper/language/hu.sh b/attacks/Handshake Snooper/language/hu.sh
old mode 100644
new mode 100755
diff --git a/fluxion.sh b/fluxion.sh
index ae0eb25..5c128a4 100755
--- a/fluxion.sh
+++ b/fluxion.sh
@@ -438,7 +438,7 @@ fluxion_kill_lineage() {
 # ============================================================ #
 # Delete log only in Normal Mode !
 fluxion_conditional_clear() {
-  # Clear iff we're not in debug mode
+  # Clear if we're not in debug mode
   if [ ! $FLUXIONDebug ]; then clear; fi
 }
 
diff --git a/language/hu.sh b/language/hu.sh
old mode 100644
new mode 100755
diff --git a/lib/InterfaceUtils.sh b/lib/InterfaceUtils.sh
index 8ed1da8..e4a8450 100755
--- a/lib/InterfaceUtils.sh
+++ b/lib/InterfaceUtils.sh
@@ -99,7 +99,7 @@ function interface_hardware() {
   esac
 
   # Check for invalid InterfaceHardwareID (starts or ends with :) .. not a happy face, still won't quote it.
-  if echo "$InterfaceHardwareID" | egrep -q "^:|:$"; then
+  if echo "$InterfaceHardwareID" | grep -Eq "^:|:$"; then
     unset InterfaceHardwareID
     unset InterfaceHardwareBus
     return 2
diff --git a/lib/installer/InstallerUtils.sh b/lib/installer/InstallerUtils.sh
index 6e39975..3cc26a9 100755
--- a/lib/installer/InstallerUtils.sh
+++ b/lib/installer/InstallerUtils.sh
@@ -40,9 +40,9 @@ installer_utils_check_version() {
   local -r __installer_utils_check_version__info=$(timeout -s SIGTERM 20 curl "$1" 2>/dev/null)
 
   local -r __installer_utils_check_version__onlineVersion=$(
-    echo "$__installer_utils_check_version__info" | egrep "$2" | egrep -o "[0-9]+")
+    echo "$__installer_utils_check_version__info" | grep -E "$2" | grep -Eo "[0-9]+")
   local -r __installer_utils_check_version__onlineRevision=$(
-    echo "$__installer_utils_check_version__info" | egrep "$3" | egrep -o "[0-9]+")
+    echo "$__installer_utils_check_version__info" | grep -E "$3" | grep -Eo "[0-9]+")
 
   if [ "$__installer_utils_check_version__onlineVersion" ] && \
     [ "$__installer_utils_check_version__onlineRevision" ]; then
diff --git a/lib/installer/managers/apt.sh b/lib/installer/managers/apt.sh
index 05cce57..4d1d76e 100755
--- a/lib/installer/managers/apt.sh
+++ b/lib/installer/managers/apt.sh
@@ -16,7 +16,7 @@ if [ -f "/etc/debian_version" ]; then
   }
 
   prep_package_manager() {
-    if [ ! "$(cat /etc/apt/sources.list | egrep 'deb http://http.kali.org/kali ((kali-rolling|main|contrib|non-free) )*')" ]; then
+    if [ ! "$(cat /etc/apt/sources.list | grep -E 'deb http://http.kali.org/kali ((kali-rolling|main|contrib|non-free) )*')" ]; then
       echo "Adding missing sources to package manager, please wait."
 
       echo "Adding keys.gnupg.net key, please wait."