diff --git a/test/TEST-01-BASIC/test-init.sh b/test/TEST-01-BASIC/test-init.sh
index 6e3a31ab..cf5a0262 100755
--- a/test/TEST-01-BASIC/test-init.sh
+++ b/test/TEST-01-BASIC/test-init.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 >/dev/watchdog
 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
-strstr() { [ "${1#*"$2"*}" != "$1" ]; }
+strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 CMDLINE=$(while read line; do echo $line;done < /proc/cmdline)
 plymouth --quit
 exec >/dev/console 2>&1
diff --git a/test/TEST-02-SYSTEMD/test-init.sh b/test/TEST-02-SYSTEMD/test-init.sh
index 43d7a21b..3fc24f52 100755
--- a/test/TEST-02-SYSTEMD/test-init.sh
+++ b/test/TEST-02-SYSTEMD/test-init.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
-strstr() { [ "${1#*"$2"*}" != "$1" ]; }
+strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 CMDLINE=$(while read line; do echo $line;done < /proc/cmdline)
 plymouth --quit
 exec </dev/console >/dev/console 2>&1
diff --git a/test/TEST-03-USR-MOUNT/test-init.sh b/test/TEST-03-USR-MOUNT/test-init.sh
index e4f37793..99e109aa 100755
--- a/test/TEST-03-USR-MOUNT/test-init.sh
+++ b/test/TEST-03-USR-MOUNT/test-init.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 >/dev/watchdog
 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
-strstr() { [ "${1#*"$2"*}" != "$1" ]; }
+strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 CMDLINE=$(while read line; do echo $line;done < /proc/cmdline)
 plymouth --quit
 exec </dev/console >/dev/console 2>&1
diff --git a/test/TEST-04-FULL-SYSTEMD/test-init.sh b/test/TEST-04-FULL-SYSTEMD/test-init.sh
index c2ed7b97..3012213e 100755
--- a/test/TEST-04-FULL-SYSTEMD/test-init.sh
+++ b/test/TEST-04-FULL-SYSTEMD/test-init.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 >/dev/watchdog
 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
-strstr() { [ "${1#*"$2"*}" != "$1" ]; }
+strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 CMDLINE=$(while read line; do echo $line;done < /proc/cmdline)
 plymouth --quit
 exec </dev/console >/dev/console 2>&1
diff --git a/test/TEST-10-RAID/test-init.sh b/test/TEST-10-RAID/test-init.sh
index c64523f6..4b4977a0 100755
--- a/test/TEST-10-RAID/test-init.sh
+++ b/test/TEST-10-RAID/test-init.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
-strstr() { [ "${1#*"$2"*}" != "$1" ]; }
+strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 CMDLINE=$(while read line; do echo $line;done < /proc/cmdline)
 command -v plymouth >/dev/null && plymouth --quit
 exec >/dev/console 2>&1
diff --git a/test/TEST-11-LVM/test-init.sh b/test/TEST-11-LVM/test-init.sh
index 2afeeb91..db3c52a3 100755
--- a/test/TEST-11-LVM/test-init.sh
+++ b/test/TEST-11-LVM/test-init.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
-strstr() { [ "${1#*"$2"*}" != "$1" ]; }
+strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 CMDLINE=$(while read line; do echo $line;done < /proc/cmdline)
 plymouth --quit
 exec >/dev/console 2>&1
diff --git a/test/TEST-12-RAID-DEG/test-init.sh b/test/TEST-12-RAID-DEG/test-init.sh
index c64523f6..4b4977a0 100755
--- a/test/TEST-12-RAID-DEG/test-init.sh
+++ b/test/TEST-12-RAID-DEG/test-init.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
-strstr() { [ "${1#*"$2"*}" != "$1" ]; }
+strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 CMDLINE=$(while read line; do echo $line;done < /proc/cmdline)
 command -v plymouth >/dev/null && plymouth --quit
 exec >/dev/console 2>&1
diff --git a/test/TEST-14-IMSM/test-init.sh b/test/TEST-14-IMSM/test-init.sh
index 616b73c3..932bd26d 100755
--- a/test/TEST-14-IMSM/test-init.sh
+++ b/test/TEST-14-IMSM/test-init.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
-strstr() { [ "${1#*"$2"*}" != "$1" ]; }
+strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 CMDLINE=$(while read line; do echo $line;done < /proc/cmdline)
 plymouth --quit
 exec >/dev/console 2>&1
diff --git a/test/TEST-16-DMSQUASH/test-init.sh b/test/TEST-16-DMSQUASH/test-init.sh
index e8c8e70e..55a53212 100755
--- a/test/TEST-16-DMSQUASH/test-init.sh
+++ b/test/TEST-16-DMSQUASH/test-init.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
-strstr() { [ "${1#*"$2"*}" != "$1" ]; }
+strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 CMDLINE=$(while read line; do echo $line;done < /proc/cmdline)
 plymouth --quit
 exec >/dev/console 2>&1
diff --git a/test/TEST-17-LVM-THIN/test-init.sh b/test/TEST-17-LVM-THIN/test-init.sh
index 2afeeb91..db3c52a3 100755
--- a/test/TEST-17-LVM-THIN/test-init.sh
+++ b/test/TEST-17-LVM-THIN/test-init.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
-strstr() { [ "${1#*"$2"*}" != "$1" ]; }
+strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 CMDLINE=$(while read line; do echo $line;done < /proc/cmdline)
 plymouth --quit
 exec >/dev/console 2>&1
diff --git a/test/TEST-20-NFS/client-init.sh b/test/TEST-20-NFS/client-init.sh
index f6bbdd92..a16db3ce 100755
--- a/test/TEST-20-NFS/client-init.sh
+++ b/test/TEST-20-NFS/client-init.sh
@@ -4,7 +4,7 @@ exec >/dev/console 2>&1
 export TERM=linux
 export PS1='initramfs-test:\w\$ '
 CMDLINE=$(while read line; do echo $line;done < /proc/cmdline)
-strstr() { [ "${1#*"$2"*}" != "$1" ]; }
+strstr() { [ "${1##*"$2"*}" != "$1" ]; }
 
 stty sane
 strstr "$CMDLINE" "rd.shell" && sh -i
diff --git a/test/TEST-50-MULTINIC/client-init.sh b/test/TEST-50-MULTINIC/client-init.sh
index 93209635..13affc41 100755
--- a/test/TEST-50-MULTINIC/client-init.sh
+++ b/test/TEST-50-MULTINIC/client-init.sh
@@ -2,8 +2,8 @@
 exec >/dev/console 2>&1
 set -x
 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
-strstr() { [ "${1#*"$2"*}" != "$1" ]; }
-strglobin() { [ -n "$1" -a -z "${1#*$2*}" ]; }
+strstr() { [ "${1##*"$2"*}" != "$1" ]; }
+strglobin() { [ -n "$1" -a -z "${1##*$2*}" ]; }
 CMDLINE=$(while read line; do echo $line;done < /proc/cmdline)
 export TERM=linux
 export PS1='initramfs-test:\w\$ '