diff --git a/dracut-init.sh b/dracut-init.sh
index fc35d7b4..b1764218 100644
--- a/dracut-init.sh
+++ b/dracut-init.sh
@@ -275,71 +275,61 @@ rev_lib_symlinks() {
 inst_rule_programs() {
     local _prog _bin
 
-    if grep -qE 'PROGRAM==?"[^ "]+' "$1"; then
-        for _prog in $(grep -E 'PROGRAM==?"[^ "]+' "$1" | sed -r 's/.*PROGRAM==?"([^ "]+).*/\1/'); do
-            _bin=""
-            if [ -x ${udevdir}/$_prog ]; then
-                _bin=${udevdir}/$_prog
-            elif [[ "${_prog/\$env\{/}" == "$_prog" ]]; then
-                _bin=$(find_binary "$_prog") || {
-                    dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
-                    continue;
-                }
-            fi
+    for _prog in $(sed -nr 's/.*PROGRAM==?"([^ "]+).*/\1/p'); do
+        _bin=""
+        if [ -x ${udevdir}/$_prog ]; then
+            _bin=${udevdir}/$_prog
+        elif [[ "${_prog/\$env\{/}" == "$_prog" ]]; then
+            _bin=$(find_binary "$_prog") || {
+                dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
+                continue;
+            }
+        fi
 
-            [[ $_bin ]] && inst_binary "$_bin"
-        done
-    fi
-    if grep -qE 'RUN[+=]=?"[^ "]+' "$1"; then
-        for _prog in $(grep -E 'RUN[+=]=?"[^ "]+' "$1" | sed -r 's/.*RUN[+=]=?"([^ "]+).*/\1/'); do
-            _bin=""
-            if [ -x ${udevdir}/$_prog ]; then
-                _bin=${udevdir}/$_prog
-            elif [[ "${_prog/\$env\{/}" == "$_prog" ]] && [[ "${_prog}" != "/sbin/initqueue" ]]; then
-                _bin=$(find_binary "$_prog") || {
-                    dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
-                    continue;
-                }
-            fi
+        [[ $_bin ]] && inst_binary "$_bin"
+    done
+    for _prog in $(sed -nr 's/.*RUN[+=]=?"([^ "]+).*/\1/p'); do
+        _bin=""
+        if [ -x ${udevdir}/$_prog ]; then
+            _bin=${udevdir}/$_prog
+        elif [[ "${_prog/\$env\{/}" == "$_prog" ]] && [[ "${_prog}" != "/sbin/initqueue" ]]; then
+            _bin=$(find_binary "$_prog") || {
+                dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
+                continue;
+            }
+        fi
 
-            [[ $_bin ]] && inst_binary "$_bin"
-        done
-    fi
-    if grep -qE 'IMPORT\{program\}==?"[^ "]+' "$1"; then
-        for _prog in $(grep -E 'IMPORT\{program\}==?"[^ "]+' "$1" | sed -r 's/.*IMPORT\{program\}==?"([^ "]+).*/\1/'); do
-            _bin=""
-            if [ -x ${udevdir}/$_prog ]; then
-                _bin=${udevdir}/$_prog
-            elif [[ "${_prog/\$env\{/}" == "$_prog" ]]; then
-                _bin=$(find_binary "$_prog") || {
-                    dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
-                    continue;
-                }
-            fi
+        [[ $_bin ]] && inst_binary "$_bin"
+    done
+    for _prog in $(sed -nr 's/.*IMPORT\{program\}==?"([^ "]+).*/\1/p'); do
+        _bin=""
+        if [ -x ${udevdir}/$_prog ]; then
+            _bin=${udevdir}/$_prog
+        elif [[ "${_prog/\$env\{/}" == "$_prog" ]]; then
+            _bin=$(find_binary "$_prog") || {
+                dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
+                continue;
+            }
+        fi
 
-            [[ $_bin ]] && dracut_install "$_bin"
-        done
-    fi
+        [[ $_bin ]] && dracut_install "$_bin"
+    done
 }
 
 # attempt to install any programs specified in a udev rule
 inst_rule_group_owner() {
     local i
 
-    if grep -qE 'OWNER=?"[^ "]+' "$1"; then
-        for i in $(grep -E 'OWNER=?"[^ "]+' "$1" | sed -r 's/.*OWNER=?"([^ "]+).*/\1/'); do
-            if ! egrep -q "^$i:" "$initdir/etc/passwd" 2>/dev/null; then
-                egrep "^$i:" /etc/passwd 2>/dev/null >> "$initdir/etc/passwd"
-            fi
-        done
-    fi
-    if grep -qE 'GROUP=?"[^ "]+' "$1"; then
-        for i in $(grep -E 'GROUP=?"[^ "]+' "$1" | sed -r 's/.*GROUP=?"([^ "]+).*/\1/'); do
-            if ! egrep -q "^$i:" "$initdir/etc/group" 2>/dev/null; then
-                egrep "^$i:" /etc/group 2>/dev/null >> "$initdir/etc/group"
-            fi
-        done
-    fi
+    for i in $(sed -nr 's/.*OWNER=?"([^ "]+).*/\1/p'); do
+        if ! grep -Eq "^$i:" "$initdir/etc/passwd" 2>/dev/null; then
+            grep -E "^$i:" /etc/passwd 2>/dev/null >> "$initdir/etc/passwd"
+        fi
+    done
+    for i in $(sed -nr 's/.*GROUP=?"([^ "]+).*/\1/p' "$1"); do
+        if ! grep -Eq "^$i:" "$initdir/etc/group" 2>/dev/null; then
+            grep -E "^$i:" /etc/group 2>/dev/null >> "$initdir/etc/group"
+        fi
+    done
 }
 
 inst_rule_initqueue() {
diff --git a/install/dracut-install.c b/install/dracut-install.c
index 8f65d8d1..3b48ba89 100644
--- a/install/dracut-install.c
+++ b/install/dracut-install.c
@@ -287,7 +287,7 @@ static int library_install(const char *src, const char *lib)
 
         /* Also try to install the same library from one directory above.
            This fixes the case, where only the HWCAP lib would be installed
-           # ldconfig -p|fgrep libc.so
+           # ldconfig -p|grep -F libc.so
            libc.so.6 (libc6,64bit, hwcap: 0x0000001000000000, OS ABI: Linux 2.6.32) => /lib64/power6/libc.so.6
            libc.so.6 (libc6,64bit, hwcap: 0x0000000000000200, OS ABI: Linux 2.6.32) => /lib64/power6x/libc.so.6
            libc.so.6 (libc6,64bit, OS ABI: Linux 2.6.32) => /lib64/libc.so.6
diff --git a/modules.d/00systemd/module-setup.sh b/modules.d/00systemd/module-setup.sh
index ed59beb7..deb5e06c 100755
--- a/modules.d/00systemd/module-setup.sh
+++ b/modules.d/00systemd/module-setup.sh
@@ -179,11 +179,11 @@ install() {
 
     # install adm user/group for journald
     inst_multiple nologin
-    egrep '^systemd-journal:' /etc/passwd 2>/dev/null >> "$initdir/etc/passwd"
-    egrep '^adm:' /etc/passwd 2>/dev/null >> "$initdir/etc/passwd"
-    egrep '^systemd-journal:' /etc/group >> "$initdir/etc/group"
-    egrep '^wheel:' /etc/group >> "$initdir/etc/group"
-    egrep '^adm:' /etc/group >> "$initdir/etc/group"
+    grep '^systemd-journal:' /etc/passwd 2>/dev/null >> "$initdir/etc/passwd"
+    grep '^adm:' /etc/passwd 2>/dev/null >> "$initdir/etc/passwd"
+    grep '^systemd-journal:' /etc/group >> "$initdir/etc/group"
+    grep '^wheel:' /etc/group >> "$initdir/etc/group"
+    grep '^adm:' /etc/group >> "$initdir/etc/group"
 
     ln_r $systemdutildir/systemd "/init"
     ln_r $systemdutildir/systemd "/sbin/init"
diff --git a/modules.d/02systemd-networkd/module-setup.sh b/modules.d/02systemd-networkd/module-setup.sh
index 58842c08..b86751ea 100755
--- a/modules.d/02systemd-networkd/module-setup.sh
+++ b/modules.d/02systemd-networkd/module-setup.sh
@@ -48,10 +48,10 @@ install() {
 
     # inst_dir /var/lib/systemd/clock
 
-    egrep '^systemd-network:' /etc/passwd 2>/dev/null >> "$initdir/etc/passwd"
-    egrep '^systemd-network:' /etc/group >> "$initdir/etc/group"
-    # egrep '^systemd-timesync:' /etc/passwd 2>/dev/null >> "$initdir/etc/passwd"
-    # egrep '^systemd-timesync:' /etc/group >> "$initdir/etc/group"
+    grep '^systemd-network:' /etc/passwd 2>/dev/null >> "$initdir/etc/passwd"
+    grep '^systemd-network:' /etc/group >> "$initdir/etc/group"
+    # grep '^systemd-timesync:' /etc/passwd 2>/dev/null >> "$initdir/etc/passwd"
+    # grep '^systemd-timesync:' /etc/group >> "$initdir/etc/group"
 
     _arch=$(uname -m)
     inst_libdir_file {"tls/$_arch/",tls/,"$_arch/",}"libnss_dns.so.*" \
diff --git a/modules.d/40network/dhclient-script.sh b/modules.d/40network/dhclient-script.sh
index 13d2dc2b..94ee9d1e 100755
--- a/modules.d/40network/dhclient-script.sh
+++ b/modules.d/40network/dhclient-script.sh
@@ -95,7 +95,7 @@ setup_interface6() {
     [ -n "$hostname" ] && echo "echo ${hostname%.$domain}${domain:+.$domain} > /proc/sys/kernel/hostname" > /tmp/net.$netif.hostname
 }
 
-function parse_option_121() {
+parse_option_121() {
     while [ $# -ne 0 ]; do
         mask="$1"
         shift
diff --git a/modules.d/40network/ifup.sh b/modules.d/40network/ifup.sh
index 7c179bdb..11855231 100755
--- a/modules.d/40network/ifup.sh
+++ b/modules.d/40network/ifup.sh
@@ -277,7 +277,7 @@ if [ -z "$NO_TEAM_MASTER" ]; then
                 for slave in $teamslaves ; do
                     ip link set $slave up 2>/dev/null
                     if wait_for_if_up $slave; then
-                        working_slaves+="$slave "
+                        working_slaves="$working_slaves$slave "
                     fi
                 done
                 # Do not add slaves now
diff --git a/modules.d/95debug/module-setup.sh b/modules.d/95debug/module-setup.sh
index ce5e8e85..97b2a30d 100755
--- a/modules.d/95debug/module-setup.sh
+++ b/modules.d/95debug/module-setup.sh
@@ -18,6 +18,6 @@ install() {
                   tcpdump cp less hostname mkdir \
                   fsck fsck.ext2 fsck.ext4 fsck.ext3 fsck.ext4dev fsck.vfat e2fsck
 
-    egrep '^tcpdump:' /etc/passwd 2>/dev/null >> "$initdir/etc/passwd"
+    grep '^tcpdump:' /etc/passwd 2>/dev/null >> "$initdir/etc/passwd"
 }
 
diff --git a/modules.d/95fcoe/fcoe-edd.sh b/modules.d/95fcoe/fcoe-edd.sh
index 3b07ad3c..1e002d35 100755
--- a/modules.d/95fcoe/fcoe-edd.sh
+++ b/modules.d/95fcoe/fcoe-edd.sh
@@ -29,7 +29,7 @@ for disk in /sys/firmware/edd/int13_*; do
 	    driver=${driver##*/}
     fi
     # i40e uses dev_port 1 for a virtual fcoe function
-    if [ "${driver}" == "i40e" ]; then
+    if [ "${driver}" = "i40e" ]; then
 	    dev_port=1
     fi
     for nic in "${disk}"/pci_dev/net/*; do
diff --git a/modules.d/95nfs/module-setup.sh b/modules.d/95nfs/module-setup.sh
index 9b5b8c8f..6f039bdb 100755
--- a/modules.d/95nfs/module-setup.sh
+++ b/modules.d/95nfs/module-setup.sh
@@ -105,14 +105,14 @@ install() {
 
     # Rather than copy the passwd file in, just set a user for rpcbind
     # We'll save the state and restart the daemon from the root anyway
-    egrep '^nfsnobody:|^rpc:|^rpcuser:' /etc/passwd >> "$initdir/etc/passwd"
-    egrep '^nogroup:|^rpc:|^nobody:' /etc/group >> "$initdir/etc/group"
+    grep -E '^nfsnobody:|^rpc:|^rpcuser:' /etc/passwd >> "$initdir/etc/passwd"
+    grep -E '^nogroup:|^rpc:|^nobody:' /etc/group >> "$initdir/etc/group"
 
     # rpc user needs to be able to write to this directory to save the warmstart
     # file
     chmod 770 "$initdir/var/lib/rpcbind"
-    egrep -q '^rpc:' /etc/passwd \
-        && egrep -q '^rpc:' /etc/group \
-        && chown rpc.rpc "$initdir/var/lib/rpcbind"
+    grep -q '^rpc:' /etc/passwd \
+        && grep -q '^rpc:' /etc/group \
+        && chown rpc:rpc "$initdir/var/lib/rpcbind"
     dracut_need_initqueue
 }
diff --git a/modules.d/95nfs/nfs-lib.sh b/modules.d/95nfs/nfs-lib.sh
index 58aa7e30..67608b19 100755
--- a/modules.d/95nfs/nfs-lib.sh
+++ b/modules.d/95nfs/nfs-lib.sh
@@ -110,7 +110,7 @@ nfsroot_from_dhcp() {
         [ -f $f ] && . $f
     done
     [ -n "$new_root_path" ] && nfsroot_to_var "$nfs:$new_root_path"
-    [ -z "$path" ] && [ "$(getarg root=)" == "/dev/nfs" ] && path=/tftpboot/%s
+    [ -z "$path" ] && [ "$(getarg root=)" = "/dev/nfs" ] && path=/tftpboot/%s
     [ -z "$server" ] && server=$srv
     [ -z "$server" ] && server=$new_dhcp_server_identifier
     [ -z "$server" ] && server=$new_next_server
diff --git a/modules.d/95udev-rules/module-setup.sh b/modules.d/95udev-rules/module-setup.sh
index 6a0625aa..a59eca2a 100755
--- a/modules.d/95udev-rules/module-setup.sh
+++ b/modules.d/95udev-rules/module-setup.sh
@@ -63,8 +63,8 @@ install() {
 
     {
         for i in cdrom tape dialout floppy; do
-            if ! egrep -q "^$i:" "$initdir/etc/group" 2>/dev/null; then
-                if ! egrep "^$i:" /etc/group 2>/dev/null; then
+            if ! grep -q "^$i:" "$initdir/etc/group" 2>/dev/null; then
+                if ! grep "^$i:" /etc/group 2>/dev/null; then
                         case $i in
                             cdrom)   echo "$i:x:11:";;
                             dialout) echo "$i:x:18:";;
diff --git a/modules.d/99base/module-setup.sh b/modules.d/99base/module-setup.sh
index cc94d005..5fbf6f7d 100755
--- a/modules.d/99base/module-setup.sh
+++ b/modules.d/99base/module-setup.sh
@@ -27,8 +27,8 @@ install() {
     fi
 
     #add common users in /etc/passwd, it will be used by nfs/ssh currently
-    egrep '^root:' "$initdir/etc/passwd" 2>/dev/null || echo  'root:x:0:0::/root:/bin/sh' >> "$initdir/etc/passwd"
-    egrep '^nobody:' /etc/passwd >> "$initdir/etc/passwd"
+    grep '^root:' "$initdir/etc/passwd" 2>/dev/null || echo  'root:x:0:0::/root:/bin/sh' >> "$initdir/etc/passwd"
+    grep '^nobody:' /etc/passwd >> "$initdir/etc/passwd"
 
     # install our scripts and hooks
     inst_script "$moddir/init.sh" "/init"
diff --git a/test/TEST-04-FULL-SYSTEMD/test.sh b/test/TEST-04-FULL-SYSTEMD/test.sh
index f5a9d48c..c7e08bfb 100755
--- a/test/TEST-04-FULL-SYSTEMD/test.sh
+++ b/test/TEST-04-FULL-SYSTEMD/test.sh
@@ -197,7 +197,7 @@ EOF
         ln -fs /proc/self/mounts $initdir/etc/mtab
 
         # install any Execs from the service files
-        egrep -ho '^Exec[^ ]*=[^ ]+' $initdir/lib/systemd/system/*.service \
+        grep -Eho '^Exec[^ ]*=[^ ]+' $initdir/lib/systemd/system/*.service \
             | while read i || [ -n "$i" ]; do
             i=${i##Exec*=}; i=${i##-}
             inst_multiple -o $i