Downloading and Installing WordPress on cPanel servers

Most times, the hosting folks don’t provide SSH access and here’s how you can download and install WordPress or for that matter anything that’s downloadable. You need the x3 theme with the new file manager though.

First you need to make the public_html to a writable directory and create and upload the file with following code…

 * Download Wordpress directly to the server...
function get_by_curl($url){
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  $c = curl_exec($ch);
  return $c;
$content = get_by_curl( '' );
file_put_contents( 'latest.tar.gz', $content );

You can now make the public_html non-writable. You’ll be able to extract the latest.tar.gz using the Extract icon on the file manager and you can install it as you would normally. The extracted folder is called wordpress and you can rename it to whatever you want or take it to the main folder. Make sure you do this before you installed it.

Using .htaccess to force https

Many occasions you need to push for an https URL (SSL) – here’s how we can do it using .htaccess

RewriteEngine On
RewriteCond %{HTTP_HOST} !^www\.
RewriteRule (.*) https://www.%{HTTP_HOST}/$1 [R=301,L]
RewriteCond %{HTTPS} !on
RewriteRule (.*) https://%{HTTP_HOST}/$1

Please note this also ensures www on the domain at the same time!

Convert PDF to plain text

Here’s some code that converts PDF to plain text

// new pdf extract
print pdf2txt("test.pdf");
// Function    : pdf2txt()
// Arguments   : $filename - Filename of the PDF you want to extract
// Description : Reads a pdf file, extracts data streams, and manages
//               their translation to plain text - returning the plain
//               text at the end
// Author      : Jonathan Beckett, 2005-05-02
function pdf2txt($filename){
  $data = getFileData($filename);
  // grab objects and then grab their contents (chunks)
  $a_obj = getDataArray($data,"obj","endobj");
  foreach($a_obj as $obj){
    $a_filter = getDataArray($obj,"<<",">>");
    if (is_array($a_filter)){
      $a_chunks[$j]["filter"] = $a_filter[0];
      $a_data = getDataArray($obj,"stream\r\n","endstream");
      if (is_array($a_data)){
        $a_chunks[$j]["data"] = substr($a_data[0],strlen("stream\r\n"),strlen($a_data[0])-strlen("stream\r\n")-strlen("endstream"));
  // decode the chunks
  foreach($a_chunks as $chunk){
    // look at each chunk and decide how to decode it - by looking at the contents of the filter
    $a_filter = split("/",$chunk["filter"]);
    if ($chunk["data"]!=""){
      // look at the filter to find out which encoding has been used      
      if (substr($chunk["filter"],"FlateDecode")!==false){
        $data =@ gzuncompress($chunk["data"]);
        if (trim($data)!=""){
          $result_data .= ps2txt($data);
        } else {
          //$result_data .= "x";
  return $result_data;
// Function    : ps2txt()
// Arguments   : $ps_data - postscript data you want to convert to plain text
// Description : Does a very basic parse of postscript data to
//               return the plain text
// Author      : Jonathan Beckett, 2005-05-02
function ps2txt($ps_data){
  $result = "";
  $a_data = getDataArray($ps_data,"[","]");
  if (is_array($a_data)){
    foreach ($a_data as $ps_text){
      $a_text = getDataArray($ps_text,"(",")");
      if (is_array($a_text)){
        foreach ($a_text as $text){
          $result .= substr($text,1,strlen($text)-2);
  } else {
    // the data may just be in raw format (outside of [] tags)
    $a_text = getDataArray($ps_data,"(",")");
    if (is_array($a_text)){
      foreach ($a_text as $text){
        $result .= substr($text,1,strlen($text)-2);
  return $result;
// Function    : getFileData()
// Arguments   : $filename - filename you want to load
// Description : Reads data from a file into a variable
//               and passes that data back
// Author      : Jonathan Beckett, 2005-05-02
function getFileData($filename){
  $handle = fopen($filename,"rb");
  $data = fread($handle, filesize($filename));
  return $data;
// Function    : getDataArray()
// Arguments   : $data       - data you want to chop up
//               $start_word - delimiting characters at start of each chunk
//               $end_word   - delimiting characters at end of each chunk
// Description : Loop through an array of data and put all chunks
//               between start_word and end_word in an array
// Author      : Jonathan Beckett, 2005-05-02
function getDataArray($data,$start_word,$end_word){
  $start = 0;
  $end = 0;
  while ($start!==false && $end!==false){
    $start = strpos($data,$start_word,$end);
    if ($start!==false){
      $end = strpos($data,$end_word,$start);
      if ($end!==false){
        // data is between start and end
        $a_result[] = substr($data,$start,$end-$start+strlen($end_word));
  return $a_result;

Some more Frequently used SSH commands

We’ve put together some of the more frequently used SSH commands or linux shell commands, and organized them by name so you can easily find a command, their description and how to use it. This guide will continue to be updated and should not be considered a complete list of SSH commands or linux shell commands, but commands, we found, often used. If you would like to add to this guide, please email us and let us know.

Common SSH Commands or Linux Shell Commands,
ls : list files/directories in a directory, comparable to dir in windows/dos.
ls -al : shows all files (including ones that start with a period), directories, and details attributes for each file.

cd : change directory · · cd /usr/local/apache : go to /usr/local/apache/ directory
cd ~ : go to your home directory
cd – : go to the last directory you were in
cd .. : go up a directory cat : print file contents to the screen

cat filename.txt : cat the contents of filename.txt to your screen

chmod: changes file access permissions
The set of 3 go in this order from left to right:

0 = ---  No permission
1 = --X  Execute only
2 = -W-  Write only
3 = -WX  Write and execute
4 = R--  Read only
5 = R-X  Read and execute
6 = RW-  Read and write
7 = RWX  Read, write and execute

chmod numberpermissions filename

chmod 000 : No one can access
chmod 644: Usually for HTML pages
chmod 755: Usually for CGI scripts

chown: changes file ownership permissions
The set of 2 go in this order from left to right:

chown root myfile.txt : Changes the owner of the file to root
chown root.root myfile.txt : Changes the owner and group of the file to root

tail : like cat, but only reads the end of the file
tail /var/log/messages : see the last 20 (by default) lines of /var/log/messages
tail -f /var/log/messages : watch the file continuously, while it’s being updated
tail -200 /var/log/messages : print the last 200 lines of the file to the screen

more : like cat, but opens the file one screen at a time rather than all at once
more /etc/userdomains : browse through the userdomains file. hit Spaceto go to the next page, q to quit

pico : friendly, easy to use file editor
pico /home/burst/public_html/index.html : edit the index page for the user’s website.

File Editing with VI ssh commands
vi : another editor, tons of features, harder to use at first than pico
vi /home/burst/public_html/index.html : edit the index page for the user’s website.
Whie in the vi program you can use the following useful commands, you will need to hit SHIFT + : to go into command mode

:q! : This force quits the file without saving and exits vi
:w : This writes the file to disk, saves it
:wq : This saves the file to disk and exists vi
:LINENUMBER : EG :25 : Takes you to line 25 within the file
:$ : Takes you to the last line of the file
:0 : Takes you to the first line of the file

grep : looks for patterns in files
grep root /etc/passwd : shows all matches of root in /etc/passwd
grep -v root /etc/passwd : shows all lines that do not match root

ln : create’s “links” between files and directories
ln -s /usr/local/apache/conf/httpd.conf /etc/httpd.conf : Now you can edit /etc/httpd.conf rather than the original. changes will affect the orginal, however you can delete the link and it will not delete the original.

last : shows who logged in and when
last -20 : shows only the last 20 logins
last -20 -a : shows last 20 logins, with the hostname in the last field

w : shows who is currently logged in and where they are logged in from.
who : This also shows who is on the server in an shell.

netstat : shows all current network connections.
netstat -an : shows all connections to the server, the source and destination ips and ports.
netstat -rn : shows routing table for all ips bound to the server.

top : shows live system processes in a nice table, memory information, uptime and other useful info. This is excellent for managing your system processes, resources and ensure everything is working fine and your server isn’t bogged down.
top then type Shift + M to sort by memory usage or Shift + P to sort by CPU usage

ps: ps is short for process status, which is similar to the top command. It’s used to show currently running processes and their PID.
A process ID is a unique number that identifies a process, with that you can kill or terminate a running program on your server (see kill command).
ps U username : shows processes for a certain user
ps aux : shows all system processes
ps aux –forest : shows all system processes like the above but organizes in a hierarchy that’s very useful!

touch : create an empty file
touch /home/burst/public_html/404.html : create an empty file called 404.html in the directory /home/burst/public_html/

file : attempts to guess what type of file a file is by looking at it’s content.
file * : prints out a list of all files/directories in a directory

du : shows disk usage.
du -sh : shows a summary, in human-readble form, of total disk space used in the current directory, including subdirectories.
du -sh * : same thing, but for each file and directory. helpful when finding large files taking up space.

wc : word count
wc -l filename.txt : tells how many lines are in filename.txt

cp : copy a file
cp filename filename.backup : copies filename to filename.backup
cp -a /home/burst/new_design/* /home/burst/public_html/ : copies all files, retaining permissions form one directory to another.
cp -av * ../newdir : Copies all files and directories recurrsively in the current directory INTO newdir

mv : Move a file command
mv oldfilename newfilename : Move a file or directory from oldfilename to newfilename

rm : delete a file
rm filename.txt : deletes filename.txt, will more than likely ask if you really want to delete it
rm -f filename.txt : deletes filename.txt, will not ask for confirmation before deleting.
rm -rf tmp/ : recursively deletes the directory tmp, and all files in it, including subdirectories. BE VERY CAREFULL WITH THIS COMMAND!!!

: Creating and Extracting .tar.gz and .tar files
tar -zxvf file.tar.gz : Extracts the file
tar -xvf file.tar : Extracts the file
tar -cf archive.tar contents/ : Takes everything from contents/ and puts it into archive.tar
gzip -d filename.gz : Decompress the file, extract it

ZIP Files:  Extracting .zip files shell command

Firewall – iptables commands
iptables -I INPUT -s IPADDRESSHERE -j DROP : This command stops any connections from the IP address
iptables -L : List all rules in iptables
iptables -F : Flushes all iptables rules (clears the firewall)
iptables –save : Saves the currenty ruleset in memory to disk
service iptables restart : Restarts iptables

Apache Shell Commands
httpd -v : Outputs the build date and version of the Apache server.
httpd -l : Lists compiled in Apache modules
httpd status : Only works if mod_status is enabled and shows a page of active connections
service httpd restart : Restarted Apache web server

MySQL Shell Commands
mysqladmin processlist : Shows active mysql connections and queries
mysqladmin drop databasenamehere : Drops/deletes the selected database
mysqladmin create databasenamehere : Creates a mysql database

Restore MySQL Database Shell Command
mysql -u username -p password databasename < databasefile.sql : Restores a MySQL database from databasefile.sql

Backup MySQL Database Shell Command
mysqldump -u username -p password databasename > databasefile.sql : Backup MySQL database to databasefile.sql

kill: terminate a system process
kill -9 PID EG: kill -9 431
kill PID
EG: kill 10550
Use top or ps ux to get system PIDs (Process IDs)


10550 pts/3 0:01 /bin/csh
10574 pts/4 0:02 /bin/csh
10590 pts/4 0:09 APP

Each line represents one process, with a process being loosely defined as a running instance of a program. The column headed PID (process ID) shows the assigned process numbers of the processes. The heading COMMAND shows the location of the executed process.

Putting commands together
Often you will find you need to use different commands on the same line. Here are some examples. Note that the | character is called a pipe, it takes date from one program and pipes it to another.
> means create a new file, overwriting any content already there.
>> means tp append data to a file, creating a newone if it doesn not already exist.
< send input from a file back into a command.

grep User /usr/local/apache/conf/httpd.conf |more
This will dump all lines that match User from the httpd.conf, then print the results to your screen one page at a time.

last -a > /root/lastlogins.tmp
This will print all the current login history to a file called lastlogins.tmp in /root/

tail -10000 /var/log/exim_mainlog |grep |more
This will grab the last 10,000 lines from /var/log/exim_mainlog, find all occurances of (the period represents ‘anything’,
— comment it out with a so it will be interpretted literally), then send it to your screen page by page.

netstat -an |grep :80 |wc -l
Show how many active connections there are to apache (httpd runs on port 80)

mysqladmin processlist |wc -l
Show how many current open connections there are to mysql

Search for files using SSH

To search the current directory and all subdirectories for a folder or file, use the following command:

find . -name filename

– where filename is the file or folder for which you are looking…
To search one directory and all its subdirectories use the following command:

find foldername -name filename

– where filename is the file or folder for which you are looking and foldername is the folder in which you want to search.

To search for files containing a string

grep -ir search_string *

– i denotes case insensitive and r is for recursive

To count number of files in a directory

ls -ral | grep '-' -c