diff --git a/t/t0002-gitfile.sh b/t/t0002-gitfile.sh
index 4db4ac44c9..cb144258cc 100755
--- a/t/t0002-gitfile.sh
+++ b/t/t0002-gitfile.sh
@@ -32,7 +32,7 @@ test_expect_success 'bad setup: invalid .git file format' '
 		echo "git rev-parse accepted an invalid .git file"
 		false
 	fi &&
-	if ! grep -qe "Invalid gitfile format" .err
+	if ! grep "Invalid gitfile format" .err
 	then
 		echo "git rev-parse returned wrong error"
 		false
@@ -46,7 +46,7 @@ test_expect_success 'bad setup: invalid .git file path' '
 		echo "git rev-parse accepted an invalid .git file path"
 		false
 	fi &&
-	if ! grep -qe "Not a git repository" .err
+	if ! grep "Not a git repository" .err
 	then
 		echo "git rev-parse returned wrong error"
 		false
diff --git a/t/t1501-worktree.sh b/t/t1501-worktree.sh
index c039ee3fd8..f6a6f839a1 100755
--- a/t/t1501-worktree.sh
+++ b/t/t1501-worktree.sh
@@ -171,7 +171,7 @@ test_expect_success 'git diff' '
 
 test_expect_success 'git grep' '
 	(cd repo.git/work/sub &&
-	GIT_DIR=../.. GIT_WORK_TREE=.. git grep -l changed | grep -q dir/tracked)
+	GIT_DIR=../.. GIT_WORK_TREE=.. git grep -l changed | grep dir/tracked)
 '
 
 test_done
diff --git a/t/t3700-add.sh b/t/t3700-add.sh
index 2ac93a346d..9f6454d2ff 100755
--- a/t/t3700-add.sh
+++ b/t/t3700-add.sh
@@ -226,7 +226,7 @@ test_expect_success 'git add '\''fo\[ou\]bar'\'' ignores foobar' '
 	git reset --hard &&
 	touch fo\[ou\]bar foobar &&
 	git add '\''fo\[ou\]bar'\'' &&
-	git ls-files fo\[ou\]bar | grep -F fo\[ou\]bar &&
+	git ls-files fo\[ou\]bar | fgrep fo\[ou\]bar &&
 	! ( git ls-files foobar | grep foobar )
 '
 
diff --git a/t/t4150-am.sh b/t/t4150-am.sh
index 1be5fb3f9d..796f795267 100755
--- a/t/t4150-am.sh
+++ b/t/t4150-am.sh
@@ -165,7 +165,7 @@ test_expect_success 'am --keep really keeps the subject' '
 	git am --keep patch4 &&
 	! test -d .git/rebase-apply &&
 	git cat-file commit HEAD |
-		grep -q -F "Re: Re: Re: [PATCH 1/5 v2] third"
+		fgrep "Re: Re: Re: [PATCH 1/5 v2] third"
 '
 
 test_expect_success 'am -3 falls back to 3-way merge' '
diff --git a/t/t6040-tracking-info.sh b/t/t6040-tracking-info.sh
index aac212e936..ba9060190d 100755
--- a/t/t6040-tracking-info.sh
+++ b/t/t6040-tracking-info.sh
@@ -53,7 +53,7 @@ test_expect_success 'checkout' '
 	(
 		cd test && git checkout b1
 	) >actual &&
-	grep -e "have 1 and 1 different" actual
+	grep "have 1 and 1 different" actual
 '
 
 test_expect_success 'status' '
@@ -63,7 +63,7 @@ test_expect_success 'status' '
 		# reports nothing to commit
 		test_must_fail git status
 	) >actual &&
-	grep -e "have 1 and 1 different" actual
+	grep "have 1 and 1 different" actual
 '
 
 
diff --git a/t/t7002-grep.sh b/t/t7002-grep.sh
index 5e359cb561..18fe6f2d57 100755
--- a/t/t7002-grep.sh
+++ b/t/t7002-grep.sh
@@ -109,7 +109,7 @@ do
 	'
 
 	test_expect_success "grep -c $L (no /dev/null)" '
-		! git grep -c test $H | grep -q /dev/null
+		! git grep -c test $H | grep /dev/null
         '
 
 done
diff --git a/t/t7701-repack-unpack-unreachable.sh b/t/t7701-repack-unpack-unreachable.sh
index 531dac060a..b48046e261 100755
--- a/t/t7701-repack-unpack-unreachable.sh
+++ b/t/t7701-repack-unpack-unreachable.sh
@@ -29,7 +29,7 @@ test_expect_success '-A option leaves unreachable objects unpacked' '
 	git repack -A -d -l &&
 	# verify objects are packed in repository
 	test 3 = $(git verify-pack -v -- .git/objects/pack/*.idx |
-		   grep -e "^$fsha1 " -e "^$csha1 " -e "^$tsha1 " |
+		   egrep "^($fsha1|$csha1|$tsha1) " |
 		   sort | uniq | wc -l) &&
 	git show $fsha1 &&
 	git show $csha1 &&
@@ -41,7 +41,7 @@ test_expect_success '-A option leaves unreachable objects unpacked' '
 	git repack -A -d -l &&
 	# verify objects are retained unpacked
 	test 0 = $(git verify-pack -v -- .git/objects/pack/*.idx |
-		   grep -e "^$fsha1 " -e "^$csha1 " -e "^$tsha1 " |
+		   egrep "^($fsha1|$csha1|$tsha1) " |
 		   sort | uniq | wc -l) &&
 	git show $fsha1 &&
 	git show $csha1 &&
diff --git a/t/t9500-gitweb-standalone-no-errors.sh b/t/t9500-gitweb-standalone-no-errors.sh
index 46ba19be7d..07117a8b7d 100755
--- a/t/t9500-gitweb-standalone-no-errors.sh
+++ b/t/t9500-gitweb-standalone-no-errors.sh
@@ -56,7 +56,7 @@ gitweb_run () {
 	rm -f gitweb.log &&
 	perl -- "$TEST_DIRECTORY/../gitweb/gitweb.perl" \
 		>/dev/null 2>gitweb.log &&
-	if grep -q -s "^[[]" gitweb.log >/dev/null; then false; else true; fi
+	if grep "^[[]" gitweb.log >/dev/null 2>&1; then false; else true; fi
 
 	# gitweb.log is left for debugging
 }