.bashrc_help

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 Command Prompt
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(Day/Date  Time/Secs )-(CPU:Jobs:Connect)-(user[@SSH] : current directory  )-(Size:Count)
(Mon Jan-1 12:34:56pm)-(CPU 1.2%:3:Net 4)-(root@server:/current/folder/path)-(12M:34)
> _
Prompt > Red if root or > Green if normal user

Error codes with descriptions will be shown before (on top of) the prompt if any error occurs:
(ERROR)-(Exit Code 130)-(Script terminated by Control-C)

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 Console Shortcuts
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CTRL-C - Halts the current command
CTRL-Z - Stops the current command (resume with fg in the foreground and bg in the background)
CTRL-D - Log out
CTRL-K - Deletes the line from the position of the cursor to the end of the line
CTRL-U - Erases the entire line
CTRL-W - Erases one word in the current line

!! - Repeats the last command
!$ - Repeats only the argument from the last command
^find^replace - Repeats the last command but replaces text
history - Shows your command line history
!123 - Runs the command associated with the numbers listed in the history above
mv /path/to/file.{txt,xml} - Brackets repeat the command with comma delimited changes
\ - Use at the end of a line to continue a multi-line command.

To stack multiple commands on one line:
&& - Commands separated by a double ampersand means AND and runs multiple commands synchronously with each one running only if the last did not fail.
& - A single ampersand runs multiple commands asynchronously (at the same time).

=======================================
 Information
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hlp - Show this help information
da - Show the date
ver - Show the current version of the operating system
checkcommand - Show if a command is aliased, a file, or a built-in command
cpu - Shows the CPU usage
topcpu - Show the top 10 CPU processes
logs - Show all logs in /var/log
apachelog - View Apache web server logs (requires multitail)
rot13 - Rot13 conversion

=======================================
 Searching
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h - Search command line history (also CTRL-S and CTRL-R)
p - Search running processes
f - Search filenames in the current folder
ftext - Searches for text in all files in the current folder

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 Folders
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la - Directory listing: show hidden files
ls - Directory listing: add colors and file type extensions
lx - Directory listing: sort by extension
lk - Directory listing: sort by size
lc - Directory listing: sort by change time
lu - Directory listing: sort by access time
lr - Directory listing: recursive ls
lt - Directory listing: sort by date
lm - Directory listing: pipe through 'more'
lw - Directory listing: wide listing format
ll - Directory listing: long listing format
labc - Directory listing: alphabetical sort
lf - Directory listing: files only
ldir - Directory listing: directories only

.. - go back 1 folder
... - go back 2 folders
.... - go back 3 folders
..... - go back 4 folders
up - go up a specified number of folders
bd - change into your previous folder (also cd -)
cpp - Copy file with a progress bar
cpg - Copy and go to the directory
mvg - Move and go to the directory
mkdirg - Create and go to the directory
rmd - Remove a directory, all sub folders, and files
pwd - Show the current directory (not an alias)
oldpwd - Show the previous directory (not an alias)
pwdtail - Returns the last 2 fields of the working directory

countfiles - Count all files (recursively) in the current folder
diskspace - Show how disk space is being used
folders - Show subfolders and disk space
folderssort - Show subfolders sorted with disk space
tree - Show a folder and file tree
treed - Show a folder tree
mountedinfo - Show mounted information

home - go to your home folder
web - Change into Apache web folder

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 File Permissions
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000 - Change permissions to no read/write/execute
644 - Change permissions to read only/write for owner
666 - Change permissions to read only
755 - Change permissions to read only and execute/write for owner
777 - Change permissions to read, write, and execute
mx - make files executable

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 Archives
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extract - Extract any archive(s) (also dtrx from http://brettcsmith.org)
mktar - Create a tar file
mkbz2 - Created a bzip2 archive file
mkgz - Create a gzip archive file
untar - Extract a tar file
unbz2 - Extract a bzip2 archive file
ungz - Extract a gzip archive file

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 Network
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netinfo - Show current network information
whatsmyip - Internal and external IP address lookup
ipview - Show the number of connections to the web server
openports - Show open ports

=======================================
 Configuration
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ebrc - Edit the .bashrc file
phpconfig - Edit the PHP configuration
apacheconfig - Edit Apache web server configuration
mysqlconfig - Edit MySQL database configuration

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 Reboot
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rebootsafe - reboot safely
rebootforce - force reboot

===============================================================================
===                      Additional Help Information:                       ===
===============================================================================

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 To Delete a Directory and All Contents
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rm -rf [folder]

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 To Check Memory Usage
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free
htop
top

To List Processes:
ps aux | grep -i [application]

To Kill a Process:
kill -9 [process_id] (forced)
kill -15 [process_id] (graceful)

=======================================
 Download a File
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wget http://server.com/filename.ext

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 Compile and Install From Source
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./configure (may not have this)
make
make install
make clean

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 Replace Text in a File
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sed -i 's/[findtext]/[replacetext]/g' [filename]

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 Find Out How Much Drive Space is Left
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df -k

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 Update and Run Clam AntiVirus
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freshclam - Update clam definitions

clamscan -ir /var/www/html/
-OR-
clamscan --recursive=yes --infected --log=/tmp/virus_scan.txt --move=/tmp/quarantine/ --scan-mail=yes --phishing-sigs=yes --phishing-scan-urls=yes /var/www/html/
-OR-
clamscan -ir / > /tmp/virus_scan.txt

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 View Network Connections
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netstat -anpl | grep :80 | awk {'print $5'} | cut -d":" -f1 | sort | uniq -c | sort -n

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 Start/Stop/Restart a service
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/etc/init.d/[service] start
/etc/init.d/[service] stop
/etc/init.d/[service] restart

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 Cron Job Locations
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/etc/cron.d
/etc/cron.daily
/etc/cron.hourly
/etc/cron.weekly
/etc/cron.monthly

The cron log is found here:
nano /var/log/cron

=======================================
 Startup Configuration
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sudo nano /etc/fstab

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 To Change System Security
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sudo nano /etc/sysctl.conf