Disable chown, uid and gid tests on Linux. These fail in the Nix sandbox.

diff --git a/tests/unit/chown_test.ts b/tests/unit/chown_test.ts
index 99e7dd4..a343122 100644
--- a/tests/unit/chown_test.ts
+++ b/tests/unit/chown_test.ts
@@ -69,7 +69,7 @@ Deno.test(
 );
 
 Deno.test(
-  { permissions: { write: true }, ignore: Deno.build.os == "windows" },
+  { permissions: { write: true }, ignore: Deno.build.os == "windows" || Deno.build.os === "linux" },
   function chownSyncPermissionDenied() {
     const dirPath = Deno.makeTempDirSync();
     const filePath = dirPath + "/chown_test_file.txt";
@@ -84,7 +84,7 @@ Deno.test(
 );
 
 Deno.test(
-  { permissions: { write: true }, ignore: Deno.build.os == "windows" },
+  { permissions: { write: true }, ignore: Deno.build.os == "windows" || Deno.build.os === "linux" },
   async function chownPermissionDenied() {
     const dirPath = await Deno.makeTempDir();
     const filePath = dirPath + "/chown_test_file.txt";
diff --git a/tests/unit/command_test.ts b/tests/unit/command_test.ts
index fa941df..9292864 100644
--- a/tests/unit/command_test.ts
+++ b/tests/unit/command_test.ts
@@ -755,7 +755,7 @@ Deno.test(
 Deno.test(
   {
     permissions: { run: true, read: true },
-    ignore: Deno.build.os === "windows",
+    ignore: Deno.build.os === "windows" || Deno.build.os === "linux",
   },
   async function commandUid() {
     const { stdout } = await new Deno.Command("id", {
@@ -778,7 +778,7 @@ Deno.test(
 Deno.test(
   {
     permissions: { run: true, read: true },
-    ignore: Deno.build.os === "windows",
+    ignore: Deno.build.os === "windows" || Deno.build.os === "linux",
   },
   function commandSyncUid() {
     const { stdout } = new Deno.Command("id", {
@@ -801,7 +801,7 @@ Deno.test(
 Deno.test(
   {
     permissions: { run: true, read: true },
-    ignore: Deno.build.os === "windows",
+    ignore: Deno.build.os === "windows" || Deno.build.os === "linux",
   },
   async function commandGid() {
     const { stdout } = await new Deno.Command("id", {
@@ -824,7 +824,7 @@ Deno.test(
 Deno.test(
   {
     permissions: { run: true, read: true },
-    ignore: Deno.build.os === "windows",
+    ignore: Deno.build.os === "windows" || Deno.build.os === "linux",
   },
   function commandSyncGid() {
     const { stdout } = new Deno.Command("id", {
diff --git a/tests/unit_node/_fs/_fs_handle_test.ts b/tests/unit_node/_fs/_fs_handle_test.ts
index 6bf37b6..3a4567f 100644
--- a/tests/unit_node/_fs/_fs_handle_test.ts
+++ b/tests/unit_node/_fs/_fs_handle_test.ts
@@ -276,7 +276,7 @@ Deno.test({
 
 Deno.test({
   name: "[node/fs filehandle.chown] Change owner of the file",
-  ignore: Deno.build.os === "windows",
+  ignore: Deno.build.os === "windows" || Deno.build.os === "linux",
   async fn() {
     const fileHandle = await fs.open(testData);