Take a look in the [man page][1]:
 
    man bash

Here I copied for you the thing you were looking for:


&lt;!-- language: lang-none --&gt;

    previous-history (C-p)
        Fetch the previous command from the history list, moving back in the list.  
    next-history (C-n)
        Fetch the next command from the history list, moving forward in the list.  
    beginning-of-history (M-&lt;)
        Move to the first line in the history.  
    end-of-history (M-&gt;)
        Move to the end of the input history, i.e., the line currently being entered.


  [1]: https://www.gnu.org/software/bash/manual/bashref.html#Commands-For-Manipulating-The-History

Depending on how things are set up for your terminal, you can usually do a &lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;C&lt;/kbd&gt; to break you back to the beginning (no comment) and then go up once or twice to get to the recent command you want.

Alternatively, using the `history` command will list all the recent commands used with index values associated with them. `!#` where `#` is the index number will rerun that command. There&#39;s a nice usefulness of the command `history | grep [command]` to try and find a specific command in your history.

I have a form that has two buttons. One for saving a record and the other for cancelling the save procedure. I am using the `rails.js` *(a common AJAX/jQuery plug-in for those of you not in the know)*  javascript file that works with jQuery for unobtrusive javascript/ajax calls. When I send the form data over ajax, I want the name and value of the button I clicked to be submitted with the rest of the data so that I can make a decision on what to do based on which button was clicked.

The method in the `rails.js` file uses `.serializeArray()` for sending form data to the server. The problem is that this doesn&#39;t include the name/value pair of the button I&#39;ve clicked. jQuery&#39;s website states that they do this on purpose (eventhough its my opinion that they should):

&quot;The `.serializeArray()` method uses the standard W3C rules for [successful controls][1] to determine which elements it should include; in particular the element cannot be disabled and must contain a name attribute. No submit button value is serialized since the form was not submitted using a button.&quot;

How can they assume that a form WASN&#39;T submitted using a button? This makes no sense and a wrong assumption I believe.

Under the W3C rules the button which was activated for the submission of a form is considered a **successful control**.

Since the developers of jQuery have decided to do this on purpose, can I assume that there is another method that **DOESN&#39;T** exclude the activated button in a serialization?

**EDIT: Here is quick example of what my form might look like...**

    &lt;!DOCTYPE html5&gt;
    &lt;html&gt;
    &lt;head&gt;
    &lt;script src=&quot;http://ajax.googleapis.com/ajax/libs/jquery/1.4.3/jquery.min.js&quot; type=&quot;text/javascript&quot;&gt;&lt;/script&gt;
    &lt;script type=&quot;text/javascript&quot;&gt;
      $(document).ready(function() {
        $(&#39;#form&#39;).submit(function(e) {
          // put your breakpoint here to look at e
          var x = 0;
        });
      });
    &lt;/script&gt;
    &lt;/head&gt;
    &lt;body&gt;
      &lt;form id=&quot;form&quot;&gt;
        &lt;input name=&quot;name&quot; type=&quot;text&quot;&gt;&lt;br/&gt;
        &lt;input name=&quot;commit&quot; type=&quot;submit&quot; value=&quot;Save&quot;/&gt;
        &lt;input name=&quot;commit&quot; type=&quot;submit&quot; value=&quot;Cancel&quot;/&gt;
      &lt;/form&gt;
    &lt;/body&gt;

  [1]: http://www.w3.org/TR/html401/interact/forms.html#h-17.13.2

jQuery serializeArray doesn&#39;t include the submit button that was clicked

For example the following query works fine:

    SELECT * 
      FROM quotes 
     WHERE expires_at &lt;= &#39;2010-10-15 10:00:00&#39;;

But this is obviously performing a &#39;string&#39; comparison - I was wondering if there was a function built in to MySQL that specifically does &#39;datetime&#39; comparisons.

mysql datetime comparison

Say I am in a bash terminal and have a large history of commands. I pressed the up arrow a whole bunch of times and am in the &quot;middle&quot; of the history. I want to now navigate to the first or the last command in my history quickly (without holding down the up or the down arrow for a long time). Is this possible? If so, what is the shortcut key to achieving this?

Navigating to the earliest/latest command in history when you&#39;re in the middle of your history

<p>Say I am in a bash terminal and have a large history of commands. I pressed the up arrow a whole bunch of times and am in the "middle" of the history. I want to now navigate to the first or the last command in my history quickly (without holding down the up or the down arrow for a long time). Is this possible? If so, what is the shortcut key to achieving this?</p>


If I pass any number of arguments to a shell script that invokes a Java program internally, how can I pass second argument onwards to the Java program except the first?

./my_script.sh a b c d ....

    #my_script.sh
    ...
    java MyApp b c d ...

Passing second argument onwards from a shell script to Java

I am working on a script that needs to perform an action in every sub-directory of a specific folder.

What is the most efficient way to write that?

Perform an action in every sub-directory using Bash

I know that &lt;kbd&gt;Esc&lt;/kbd&gt; + &lt;kbd&gt;.&lt;/kbd&gt; gives you the last argument of the last command.

But I&#39;m interested in first argument of the last command.
Is there a key binding to do so?

On the same lines, is there a generic way of getting the nth argument from the last command?
I know that in a bash script, you can use `$0`, `$1` etc., but these don&#39;t work on the commandline.

**Also, what about iterating through the 0th argument of previous commands, like we can do with the last argument by continuously pressing &lt;kbd&gt;Esc&lt;/kbd&gt; + &lt;kbd&gt;.&lt;/kbd&gt;?**


How to use arguments from previous command?

Is there any way to compare such strings on bash, e.g.: `2.4.5` and `2.8` and `2.4.5.1`?

How to compare two strings in dot separated version format in Bash?

I have a directory with roughly 100000 files in it, and I want to perform some function on all files beginning with a specified string, which may match tens of thousands of files.

I have tried

    ls mystring*

but this returns with the bash error &#39;Too many arguments&#39;.  My next plan was to use

    find ./mystring* -type f
but this has the same issue.  

The code needs to look something like

    for FILE in `find ./mystring* -type f`
    do
        #Some function on the file
    done



Find all files with a filename beginning with a specified string?

Say I have a program `X.EXE` installed in folder `c:\abcd\happy\` on the system. The folder is on the system path. Now suppose there is another program on the system that&#39;s also called X.EXE but is installed in folder `c:\windows\`.

Is it possible to quickly find out from the command line that if I type in `X.EXE` which of the two `X.EXE`&#39;s will get launched? (but without having to dir search or look at the process details in Task Manager).

Maybe some sort of in-built command, or some program out there that can do something like this? :

    detect_program_path X.EXE



Finding the path of the program that will execute from the command line in Windows

I use python to create my project settings setup, but I need help getting the command line arguments.

I tried this on the terminal:

    $python myfile.py var1 var2 var3

In my Python file, I want to use all variables that are input.


How do I access command line arguments?

In a DOS window, how can I get the full DOS name/short name of the directory I am in?

For example, if I am in the directory `C:\Program Files\Java\jdk1.6.0_22`, I want to display it&#39;s short name `C:\PROGRA~1\Java\JDK16~1.0_2`.

I know running `dir /x` will give me the short names of files/directories in the current directory but I haven&#39;t been able to find a way to display the full path of the current directory in short name format. I&#39;m having to work my way through the path from the root, directory by directory, running `dir /x` in each.

I&#39;m sure there is an easier way to do this?


Get DOS path instead of Windows path

In Windows, I would have done a search for finding a word inside a folder. Similarly, I want to know if a specific word occurs inside a directory containing many sub-directories and files. My searches for grep syntax shows I must specify the filename, i.e. `grep string filename`.

Now, I do not know the filename, so what do I do?
A friend suggested to do `grep -nr string`, but I don&#39;t know what this means and I got no results with it (there is no response until I issue a &lt;kbd&gt;Ctrl&lt;/kbd&gt; + &lt;kbd&gt;C&lt;/kbd&gt;).

How can I use grep to find a word inside a folder?

What&#39;s the easiest/quickest way to interleave the lines of two (or more) text files? Example:

File 1:

    line1.1
    line1.2
    line1.3

File 2:

    line2.1
    line2.2
    line2.3

Interleaved:

    line1.1
    line2.1
    line1.2
    line2.2
    line1.3
    line2.3

Sure it&#39;s easy to write a little Perl script that opens them both and does the task. But I was wondering if it&#39;s possible to get away with fewer code, maybe a one-liner using Unix tools?


How to interleave lines from two text files

I need in **node.js** function

    result = execSync(&#39;node -v&#39;);

that will **synchronously** execute the given command line and return all stdout&#39;ed by that command text.

&gt; ps. Sync is wrong. I know. Just for personal use.

**UPDATE**

Now we have mgutz&#39;s solution which gives us exit code, but not stdout! Still waiting for a more precise answer.

**UPDATE**

**mgutz** updated his answer and the solution is here :)  
Also, as **dgo.a** mentioned, there is stand-alone module [exec-sync](https://github.com/jeremyfa/node-exec-sync)


**UPDATE 2014-07-30**

[ShellJS](https://github.com/arturadib/shelljs) lib arrived. Consider this is the best choice for now.

-----------

**UPDATE 2015-02-10**

**AT LAST!** NodeJS 0.12 supports `execSync` natively.  
See official [docs](http://nodejs.org/docs/v0.12.0/api/child_process.html#child_process_child_process_execsync_command_options)



node.js execute system command synchronously

I want to copy all files in a directory except some files in a specific sub-directory.
I have noticed that `cp` command didn&#39;t have the `--exclude` option.
So, how can I achieve this?

How to use &#39;cp&#39; command to exclude a specific directory?

In Vim, is there any way to repeat the last command regardless of whether it was an edit or not, and without having the foresight to first record a macro?

E.g. say I type `:bn`, and want to do it again (it was the wrong file). Pressing `.` obviously doesn&#39;t do it. Or maybe I&#39;m doing `gE` and want to repeat that (with one keystroke since clearly `gE` is kinda painful to type).

Perhaps there are some plugins? Similar to [this question](https://stackoverflow.com/questions/3671019/repeating-a-navigation-command-in-vi).

(Even cooler would be to retroactively bind a number of commands to a macro, so one could type `5qa@a` or something to repeat the last 5 commands...)

Content Type	Original Author	Original Content on Stackoverflow
Question	madiyaan damha	View Question on Stackoverflow
Solution 1 - Bash	kokosing	View Answer on Stackoverflow
Solution 2 - Bash	Anthony	View Answer on Stackoverflow

Navigating to the earliest/latest command in history when you're in the middle of your history

Bash Problem Overview

Bash Solutions

Solution 1 - Bash

Solution 2 - Bash

mysql datetime comparison

jQuery serializeArray doesn't include the submit button that was clicked

Attributions