diff --git a/bin/hardening/5.4.2_disable_system_accounts.sh b/bin/hardening/5.4.2_disable_system_accounts.sh
index 12a0d65..af01f31 100755
--- a/bin/hardening/5.4.2_disable_system_accounts.sh
+++ b/bin/hardening/5.4.2_disable_system_accounts.sh
@@ -27,7 +27,7 @@ ACCEPTED_SHELLS_GREP=''
 audit() {
     shells_to_grep_helper
     info "Checking if admin accounts have a login shell different than $ACCEPTED_SHELLS"
-    RESULT=$(egrep -v "^\+" $FILE | awk -F: '($1!="root" && $1!="sync" && $1!="shutdown" && $1!="halt" && $3<1000 ) {print}' | grep -v $ACCEPTED_SHELLS_GREP || true)
+    RESULT=$(grep -Ev "^\+" $FILE | awk -F: '($1!="root" && $1!="sync" && $1!="shutdown" && $1!="halt" && $3<1000 ) {print}' | grep -v $ACCEPTED_SHELLS_GREP || true)
     IFS_BAK=$IFS
     IFS=$'\n'
     for LINE in $RESULT; do
@@ -54,7 +54,7 @@ audit() {
 
 # This function will be called if the script status is on enabled mode
 apply() {
-    RESULT=$(egrep -v "^\+" $FILE | awk -F: '($1!="root" && $1!="sync" && $1!="shutdown" && $1!="halt" && $3<1000 ) {print}' | grep -v $ACCEPTED_SHELLS_GREP || true)
+    RESULT=$(grep -Ev "^\+" $FILE | awk -F: '($1!="root" && $1!="sync" && $1!="shutdown" && $1!="halt" && $3<1000 ) {print}' | grep -v $ACCEPTED_SHELLS_GREP || true)
     IFS_BAK=$IFS
     IFS=$'\n'
     for LINE in $RESULT; do
diff --git a/bin/hardening/6.2.10_check_user_dot_file_perm.sh b/bin/hardening/6.2.10_check_user_dot_file_perm.sh
index 5634eb9..ea62cb1 100755
--- a/bin/hardening/6.2.10_check_user_dot_file_perm.sh
+++ b/bin/hardening/6.2.10_check_user_dot_file_perm.sh
@@ -21,7 +21,7 @@ ERRORS=0
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    for DIR in $(get_db passwd | egrep -v '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
+    for DIR in $(get_db passwd | grep -Ev '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
         debug "Working on $DIR"
         for FILE in "$DIR"/.[A-Za-z0-9]*; do
             if [ ! -h "$FILE" ] && [ -f "$FILE" ]; then
@@ -45,7 +45,7 @@ audit() {
 
 # This function will be called if the script status is on enabled mode
 apply() {
-    for DIR in $(get_db passwd | egrep -v '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
+    for DIR in $(get_db passwd | grep -Ev '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
         for FILE in "$DIR"/.[A-Za-z0-9]*; do
             if [ ! -h "$FILE" ] && [ -f "$FILE" ]; then
                 FILEPERM=$(ls -ld "$FILE" | cut -f1 -d" ")
diff --git a/bin/hardening/6.2.11_find_user_forward_files.sh b/bin/hardening/6.2.11_find_user_forward_files.sh
index 5cb2e72..f391e59 100755
--- a/bin/hardening/6.2.11_find_user_forward_files.sh
+++ b/bin/hardening/6.2.11_find_user_forward_files.sh
@@ -22,7 +22,7 @@ FILENAME='.forward'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    for DIR in $(get_db passwd | egrep -v '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
+    for DIR in $(get_db passwd | grep -Ev '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
         debug "Working on $DIR"
         for FILE in $DIR/$FILENAME; do
             if [ ! -h "$FILE" ] && [ -f "$FILE" ]; then
diff --git a/bin/hardening/6.2.12_find_user_netrc_files.sh b/bin/hardening/6.2.12_find_user_netrc_files.sh
index 02726b8..65682b9 100755
--- a/bin/hardening/6.2.12_find_user_netrc_files.sh
+++ b/bin/hardening/6.2.12_find_user_netrc_files.sh
@@ -22,7 +22,7 @@ FILENAME='.netrc'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    for DIR in $(get_db passwd | egrep -v '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
+    for DIR in $(get_db passwd | grep -Ev '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
         debug "Working on $DIR"
         for FILE in $DIR/$FILENAME; do
             if [ ! -h "$FILE" ] && [ -f "$FILE" ]; then
diff --git a/bin/hardening/6.2.13_set_perm_on_user_netrc.sh b/bin/hardening/6.2.13_set_perm_on_user_netrc.sh
index c304e1a..cd8bf30 100755
--- a/bin/hardening/6.2.13_set_perm_on_user_netrc.sh
+++ b/bin/hardening/6.2.13_set_perm_on_user_netrc.sh
@@ -22,7 +22,7 @@ ERRORS=0
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    for DIR in $(get_db passwd | egrep -v '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
+    for DIR in $(get_db passwd | grep -Ev '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
         debug "Working on $DIR"
         for FILE in $DIR/.netrc; do
             if [ ! -h "$FILE" ] && [ -f "$FILE" ]; then
@@ -45,7 +45,7 @@ audit() {
 
 # This function will be called if the script status is on enabled mode
 apply() {
-    for DIR in $(cat /etc/passwd | egrep -v '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
+    for DIR in $(cat /etc/passwd | grep -Ev '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
         debug "Working on $DIR"
         for FILE in $DIR/.netrc; do
             if [ ! -h "$FILE" ] && [ -f "$FILE" ]; then
diff --git a/bin/hardening/6.2.14_find_user_rhosts_files.sh b/bin/hardening/6.2.14_find_user_rhosts_files.sh
index 157f80e..d712bf3 100755
--- a/bin/hardening/6.2.14_find_user_rhosts_files.sh
+++ b/bin/hardening/6.2.14_find_user_rhosts_files.sh
@@ -22,7 +22,7 @@ FILENAME=".rhosts"
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    for DIR in $(get_db passwd | egrep -v '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
+    for DIR in $(get_db passwd | grep -Ev '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
         debug "Working on $DIR"
         for FILE in $DIR/$FILENAME; do
             if [ ! -h "$FILE" ] && [ -f "$FILE" ]; then
diff --git a/bin/hardening/6.2.8_check_user_dir_perm.sh b/bin/hardening/6.2.8_check_user_dir_perm.sh
index 49f1def..ff34991 100755
--- a/bin/hardening/6.2.8_check_user_dir_perm.sh
+++ b/bin/hardening/6.2.8_check_user_dir_perm.sh
@@ -21,7 +21,7 @@ ERRORS=0
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    for dir in $(get_db passwd | /bin/egrep -v '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
+    for dir in $(get_db passwd | grep -Ev '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
         debug "Working on $dir"
         debug "Exceptions : $EXCEPTIONS"
         debug "echo \"$EXCEPTIONS\" | grep -q $dir"
@@ -60,7 +60,7 @@ audit() {
 
 # This function will be called if the script status is on enabled mode
 apply() {
-    for dir in $(get_db passwd | /bin/egrep -v '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
+    for dir in $(get_db passwd | grep -Ev '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
         debug "Working on $dir"
         debug "Exceptions : $EXCEPTIONS"
         debug "echo \"$EXCEPTIONS\" | grep -q $dir"