Most useful terminal commands

Below is a list of mostly helpful terminal commands you'd need to get on with your work. I'm planning to keep adding entries to this list later.

Print environment variable

  • echo $
  • E.g: echo $PATH would print the PATH variable value

Mac Show current Xcode location

  • xcode-select --print-path

Print current path (working directory)

  • pwd

Perform Load testing (Using Apache AB)

You can easily perform a simple load test using Apache AB. Macs come with apache AB installed. You can directly run from the terminal.
  • ab -n -c
  • E.g: ab -n 100 -c 5 http://www.google.com/

Comments

Post a Comment

Popular posts from this blog

Encrypt and Decrypt Images Using Java

Hi, Most of you would find it useful to Encrypt a special picture of yours such that only you can view it. By using JCE(Java Cryptography Extension) classes, this becomes very simple. As I have already done before using Java to encrypt a String is very simple. If you are new to this, please read the article which I had already posted named "Java Encryption and Decryption" at "http://ruchiram4.blogspot.com/2009/04/java-encryption-and-decryption.html" Also, you need to have a basic understanding of Java IO. If you are new, it is better to read the Sun Java tutorial on IO. Before we move on, lets recall the basic steps in Encrypting plaintext. 1. Creating an instance of "Cipher" object and setting the mode of Encryption (Eg: AES, DES) 2. Generating a key by using a KeyGenerator object. 3. Setting the mode of Cipher operation on the Cipher object. As we intent to Encrypt, we simply set it by setting a property of Cipher object by calling its "init"...
Read more

kSoap2 printing request dump

Hi, kSoap2 is a library for SOAP which is used in Androids. Here's a neat little trick, if you want to see the actual XML sent received. 1. Set httpTransport.debug=true; before making the call 2. Read values from the httpTransport object afterwards String s1 = httpTransport.requestDump; String s2 = httpTransport.responseDump; Have fun !!!
Read more

ASP Response.Write newline

Hi, all of you who have used ASP may have encountered situations where you require to write a text output to the screen. It can be easily done by using Response.Write("Hello world"); However, if you wish to append some more text to a newline, it would not work in the following ways. Response.Write("Hello world \n"); Response.Write("Good day."); The output of the above lines would be Hello world Good day. and NOT Hello world Good day. In order to overcome this, you can very simple place an html break tag inside the code. Response.Write("Hello world"); Response.Write("<br/>"); Response.Write("Good day."); The output would be the following. Hello world Good day. Cheers !!!
Read more