egrep -> grep -E

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13259

tests/zfs-tests/include/blkdev.shlib

@@ -115,21 +115,18 @@ function is_physical_device #device
 
 	if is_linux; then
 		is_disk_device "$DEV_DSKDIR/$device" && \
-		[[ -f /sys/module/loop/parameters/max_part ]]
-		return $?
+		[ -f /sys/module/loop/parameters/max_part ]
 	elif is_freebsd; then
 		is_disk_device "$DEV_DSKDIR/$device" && \
-		echo $device | egrep -q \
+		echo $device | grep -qE \
 		    -e '^a?da[0-9]+$' \
 		    -e '^md[0-9]+$' \
 		    -e '^mfid[0-9]+$' \
 		    -e '^nda[0-9]+$' \
 		    -e '^nvd[0-9]+$' \
 		    -e '^vtbd[0-9]+$'
-		return $?
 	else
-		echo $device | egrep "^c[0-F]+([td][0-F]+)+$" > /dev/null 2>&1
-		return $?
+		echo $device | grep -qE "^c[0-F]+([td][0-F]+)+$"
 	fi
 }
 
@@ -143,8 +140,7 @@ function is_real_device #disk
 
 	if is_linux; then
 		lsblk $DEV_RDSKDIR/$disk -o TYPE 2>/dev/null | \
-		    egrep disk >/dev/null
-		return $?
+		    grep -q disk
 	fi
 }
 
@@ -158,8 +154,7 @@ function is_loop_device #disk
 
 	if is_linux; then
 		lsblk $DEV_RDSKDIR/$disk -o TYPE 2>/dev/null | \
-		    egrep loop >/dev/null
-		return $?
+		    grep -q loop
 	fi
 }
 
@@ -182,7 +177,7 @@ function is_mpath_device #disk
 
 	if is_linux; then
 		lsblk $DEV_MPATHDIR/$disk -o TYPE 2>/dev/null | \
-		   egrep mpath >/dev/null
+		   grep -q mpath
 		if (($? == 0)); then
 			readlink $DEV_MPATHDIR/$disk > /dev/null 2>&1
 			return $?
@@ -333,14 +328,14 @@ function on_off_disk # disk state{online,offline} host
 			dep="$(ls /sys/block/${dm_name}/slaves | awk '{print $1}')"
 			while [[ -n $dep ]]; do
 				#check if disk is online
-				if lsscsi | egrep -q $dep; then
+				if lsscsi | grep -qF $dep; then
 					dep_dir="/sys/block/${dm_name}"
 					dep_dir+="/slaves/${dep}/device"
 					ss="${dep_dir}/state"
 					sd="${dep_dir}/delete"
 					log_must eval "echo 'offline' > ${ss}"
 					log_must eval "echo '1' > ${sd}"
-					if lsscsi | egrep -q $dep; then
+					if lsscsi | grep -qF $dep; then
 						log_fail "Offlining $disk failed"
 					fi
 				fi
@@ -348,17 +343,14 @@ function on_off_disk # disk state{online,offline} host
 			done
 		elif [[ $state == "offline" ]] && ( is_real_device $disk ); then
 			#check if disk is online
-			lsscsi | egrep $disk > /dev/null
-			if (($? == 0)); then
+			if lsscsi | grep -qF $disk; then
 				dev_state="/sys/block/$disk/device/state"
 				dev_delete="/sys/block/$disk/device/delete"
 				log_must eval "echo 'offline' > ${dev_state}"
 				log_must eval "echo '1' > ${dev_delete}"
-				lsscsi | egrep $disk > /dev/null
-					if (($? == 0)); then
-						log_fail "Offlining $disk" \
-						    "failed"
-					fi
+				if lsscsi | grep -qF $disk; then
+					log_fail "Offlining $disk failed"
+				fi
 			else
 				log_note "$disk is already offline"
 			fi
@@ -369,13 +361,13 @@ function on_off_disk # disk state{online,offline} host
 			if is_mpath_device $disk; then
 				dm_name="$(readlink $DEV_DSKDIR/$disk | cut -d/ -f2)"
 				dep="$(ls /sys/block/$dm_name/slaves | awk '{print $1}')"
-				if lsscsi | egrep -q $dep; then
+				if lsscsi | grep -qF $dep; then
 					log_fail "Onlining $disk failed"
 				fi
 			elif is_real_device $disk; then
 				block_device_wait
 				typeset -i retries=0
-				while ! lsscsi | egrep -q $disk; do
+				while ! lsscsi | grep -qF $disk; do
 					if (( $retries > 2 )); then
 						log_fail "Onlining $disk failed"
 						break
@@ -451,16 +443,14 @@ function load_scsi_debug # dev_size_mb add_host num_tgts max_luns blksz
 			log_unsupported "Platform does not have scsi_debug"
 			    "module"
 		fi
-		lsmod | egrep scsi_debug > /dev/null
-		if (($? == 0)); then
+		if lsmod | grep -q scsi_debug; then
 			log_fail "scsi_debug module already installed"
 		else
 			log_must modprobe scsi_debug dev_size_mb=$devsize \
 			    add_host=$hosts num_tgts=$tgts max_luns=$luns \
 			    sector_size=$sector physblk_exp=$blkexp
 			block_device_wait
-			lsscsi | egrep scsi_debug > /dev/null
-			if (($? == 1)); then
+			if ! lsscsi | grep -q scsi_debug; then
 				log_fail "scsi_debug module install failed"
 			fi
 		fi

tests/zfs-tests/include/commands.cfg

@@ -32,7 +32,6 @@ export SYSTEM_FILES_COMMON='arp
     dmesg
     du
     echo
-    egrep
     env
     expr
     false

tests/zfs-tests/include/libtest.shlib

@@ -2018,8 +2018,8 @@ function verify_pool
 #
 function get_disklist # pool
 {
-	zpool iostat -v $1 | awk '(NR > 4) {print $1}' | \
-	    egrep -v -e '^-----' -e "^(mirror|raidz[1-3]|draid[1-3]|spare|log|cache|special|dedup)|\-[0-9]$"
+	echo $(zpool iostat -v $1 | awk '(NR > 4) {print $1}' | \
+	    grep -vEe '^-----' -e "^(mirror|raidz[1-3]|draid[1-3]|spare|log|cache|special|dedup)|\-[0-9]$")
 }
 
 #
@@ -2182,7 +2182,7 @@ function check_pool_status # pool token keyword <verbose>
 	if [[ $verbose == true ]]; then
 		log_note $scan
 	fi
-	echo $scan | egrep -qi "$keyword"
+	echo $scan | grep -qi "$keyword"
 }
 
 #