Try to use "echo" without "shx" on Windows

test/cli/samples/stdin/config-file/_config.js

@@ -1,5 +1,5 @@
 module.exports = {
 	description:
 		'does not replace input with stdin but allows referencing it when using a config file',
-	command: `shx echo "import {PRINT as p} from './a'; import C from  './b'; 0 && fail() || p(C); export {C as value, p as print}" | rollup -c`
+	command: `echo "import {PRINT as p} from './a'; import C from  './b'; 0 && fail() || p(C); export {C as value, p as print}" | rollup -c`
 };

test/cli/samples/stdin/force-stdin-config-file/_config.js

@@ -1,4 +1,4 @@
 module.exports = {
 	description: 'allows forcing inputs to be replaced with stdin in config files',
-	command: `shx echo "console.log('STDIN');" | rollup -c --stdin`
+	command: `echo "console.log('STDIN');" | rollup -c --stdin`
 };

test/cli/samples/stdin/force-stdin-tty/_config.js

@@ -1,4 +1,4 @@
 module.exports = {
 	description: 'allows forcing stdin input on TTY interfaces via option',
-	command: `shx echo "console.log('PASS');" | ./wrapper.js -f es --stdin`
+	command: `echo "console.log('PASS');" | ./wrapper.js -f es --stdin`
 };

test/cli/samples/stdin/no-dash/_config.js

@@ -1,4 +1,4 @@
 module.exports = {
 	description: 'uses stdin input when piping into Rollup without an input',
-	command: `shx mkdir -p _actual && shx echo "0 && fail() || console.log('PASS');" | rollup > _actual/out.js`
+	command: `shx mkdir -p _actual && echo "0 && fail() || console.log('PASS');" | rollup > _actual/out.js`
 };

test/cli/samples/stdin/no-stdin-config-file/_config.js

@@ -1,4 +1,4 @@
 module.exports = {
 	description: 'allows using "-" as a regular file name via flag',
-	command: `shx echo "console.log('IGNORED');" | rollup -c --no-stdin`
+	command: `echo "console.log('IGNORED');" | rollup -c --no-stdin`
 };

test/cli/samples/stdin/no-stdin-tty/_config.js

@@ -2,7 +2,7 @@ const { assertStderrIncludes } = require('../../../../utils.js');
 
 module.exports = {
 	description: 'does not use input as stdin on TTY interfaces',
-	command: `shx echo "console.log('PASS');" | ./wrapper.js -f es`,
+	command: `echo "console.log('PASS');" | ./wrapper.js -f es`,
 	error(err) {
 		assertStderrIncludes(err.message, 'You must supply options.input to rollup');
 	}

test/cli/samples/stdin/with-dash/_config.js

@@ -1,4 +1,4 @@
 module.exports = {
 	description: 'stdin input with dash on CLI',
-	command: `shx mkdir -p _actual && shx echo "0 && fail() || console.log('PASS');" | rollup - > _actual/out.js`
+	command: `shx mkdir -p _actual && echo "0 && fail() || console.log('PASS');" | rollup - > _actual/out.js`
 };