diff --git a/dist/npmci.bash.d.ts b/dist/npmci.bash.d.ts
index a4cecd9..2c603ba 100644
--- a/dist/npmci.bash.d.ts
+++ b/dist/npmci.bash.d.ts
@@ -1,3 +1,13 @@
 export declare let nvmAvailable: boolean;
+/**
+ * bash() allows using bash with nvm in path
+ */
 export declare let bash: (commandArg: string, retryArg?: number, bareArg?: boolean) => string;
-export declare let bashBare: (commandArg: any, retryArg?: number) => string;
+/**
+ * bashBare allows usage of bash without sourcing any files like nvm
+ */
+export declare let bashBare: (commandArg: string, retryArg?: number) => string;
+/**
+ * bashNoError allows executing stuff without throwing an error
+ */
+export declare let bashNoError: (commandArg: string) => string;
diff --git a/dist/npmci.bash.js b/dist/npmci.bash.js
index 6260694..e9f6597 100644
--- a/dist/npmci.bash.js
+++ b/dist/npmci.bash.js
@@ -14,6 +14,9 @@ let checkNvm = () => {
     ;
 };
 checkNvm();
+/**
+ * bash() allows using bash with nvm in path
+ */
 exports.bash = (commandArg, retryArg = 2, bareArg = false) => {
     let exitCode;
     let stdOut;
@@ -28,11 +31,12 @@ exports.bash = (commandArg, retryArg = 2, bareArg = false) => {
             }
             exitCode = execResult.code;
             stdOut = execResult.stdout;
+            // determine how bash reacts to error and success
             if (exitCode !== 0 && i === retryArg) {
                 process.exit(1);
             }
-            else if (exitCode === 0) {
-                i = retryArg + 1; // if everything works out ok retrials are not wanted
+            else if (exitCode === 0 || retryArg === -1) {
+                i = retryArg + 1; // retry +1 breaks for loop, if everything works out ok retrials are not wanted
             }
             else {
                 plugins.beautylog.warn('Something went wrong! Exit Code: ' + exitCode.toString());
@@ -45,7 +49,16 @@ exports.bash = (commandArg, retryArg = 2, bareArg = false) => {
     }
     return stdOut;
 };
+/**
+ * bashBare allows usage of bash without sourcing any files like nvm
+ */
 exports.bashBare = (commandArg, retryArg = 2) => {
     return exports.bash(commandArg, retryArg, true);
 };
-//# sourceMappingURL=data:application/json;base64,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
\ No newline at end of file
+/**
+ * bashNoError allows executing stuff without throwing an error
+ */
+exports.bashNoError = (commandArg) => {
+    return exports.bash(commandArg, -1);
+};
+//# sourceMappingURL=data:application/json;base64,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
\ No newline at end of file
diff --git a/dist/npmci.install.js b/dist/npmci.install.js
index 3d9ae3f..fd0cc9b 100644
--- a/dist/npmci.install.js
+++ b/dist/npmci.install.js
@@ -35,7 +35,7 @@ exports.install = (versionArg) => {
         .then(configArg => {
         for (let npmTool of configArg.globalNpmTools) {
             plugins.beautylog.info(`Checking for global "${npmTool}"`);
-            let whichOutput = npmci_bash_1.bash(`which ${npmTool}`);
+            let whichOutput = npmci_bash_1.bashNoError(`which ${npmTool}`);
             let toolAvailable = !(/not found/.test(whichOutput));
             if (toolAvailable) {
                 plugins.beautylog.log(`Tool ${npmTool} is available`);
@@ -49,4 +49,4 @@ exports.install = (versionArg) => {
     });
     return done.promise;
 };
-//# sourceMappingURL=data:application/json;base64,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
\ No newline at end of file
+//# sourceMappingURL=data:application/json;base64,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
\ No newline at end of file
diff --git a/ts/npmci.bash.ts b/ts/npmci.bash.ts
index 41251ee..fabbf61 100644
--- a/ts/npmci.bash.ts
+++ b/ts/npmci.bash.ts
@@ -13,7 +13,10 @@ let checkNvm = () => {
 }
 checkNvm()
 
-export let bash = (commandArg: string, retryArg = 2, bareArg = false): string => {
+/**
+ * bash() allows using bash with nvm in path
+ */
+export let bash = (commandArg: string, retryArg: number = 2, bareArg: boolean = false): string => {
     let exitCode: number
     let stdOut: string
     let execResult
@@ -28,10 +31,12 @@ export let bash = (commandArg: string, retryArg = 2, bareArg = false): string =>
             }
             exitCode = execResult.code
             stdOut = execResult.stdout
-            if (exitCode !== 0 && i === retryArg) {
+
+            // determine how bash reacts to error and success
+            if (exitCode !== 0 && i === retryArg) { // something went wrong and retries are exhausted
                 process.exit(1)
-            } else if (exitCode === 0) {
-                i = retryArg + 1 // if everything works out ok retrials are not wanted
+            } else if (exitCode === 0 || retryArg === -1) { // everything went fine, or no error wanted
+                i = retryArg + 1 // retry +1 breaks for loop, if everything works out ok retrials are not wanted
             } else {
                 plugins.beautylog.warn('Something went wrong! Exit Code: ' + exitCode.toString())
                 plugins.beautylog.info('Retry ' + (i + 1).toString() + ' of ' + retryArg.toString())
@@ -43,6 +48,16 @@ export let bash = (commandArg: string, retryArg = 2, bareArg = false): string =>
     return stdOut
 }
 
-export let bashBare = (commandArg, retryArg = 2) => {
+/**
+ * bashBare allows usage of bash without sourcing any files like nvm
+ */
+export let bashBare = (commandArg: string, retryArg: number = 2) => {
     return bash(commandArg, retryArg, true)
 }
+
+/**
+ * bashNoError allows executing stuff without throwing an error
+ */
+export let bashNoError = (commandArg: string) => {
+    return bash(commandArg,-1)
+}
diff --git a/ts/npmci.install.ts b/ts/npmci.install.ts
index 061783c..4820a8d 100644
--- a/ts/npmci.install.ts
+++ b/ts/npmci.install.ts
@@ -1,6 +1,6 @@
 import * as plugins from './npmci.plugins'
 import * as configModule from './npmci.config'
-import { bash } from './npmci.bash'
+import { bash, bashNoError } from './npmci.bash'
 import { nvmAvailable } from './npmci.bash'
 export let install = (versionArg) => {
     let done = plugins.q.defer()
@@ -29,7 +29,7 @@ export let install = (versionArg) => {
         .then(configArg => {
             for (let npmTool of configArg.globalNpmTools) {
                 plugins.beautylog.info(`Checking for global "${npmTool}"`)
-                let whichOutput = bash(`which ${npmTool}`)
+                let whichOutput = bashNoError(`which ${npmTool}`)
                 let toolAvailable: boolean = !(/not found/.test(whichOutput))
                 if (toolAvailable) {
                     plugins.beautylog.log(`Tool ${npmTool} is available`)