Ryan Howard

Basic Linux Commands –

cd [directory name]  – Change Directory

mkdir [directory name] – Make new Directory

touch [file names] –make new files

ls – lists contents in current directory

pwd – lists current directory

rm [file name] – delete file

cp [file name] [new file name] – copy files

mv [file name] [new file name] – move files

find [string] – searches for files containing the string

grep [string] – searches file contents for the string

emacs [file name] – opens a text editor on the listed file name

scp user@host [source file name][target file name]

[First command] |[Second command] (Piping) – Dumps the output of the first command into the second

#!/bin/tcsh – Must be at the beginning of a bash script

C++

 Compiling Files

g++ [filename].cpp      -   Compiles file

./a.out    -   Runs file

#Include <iostream> Necessary for text output and input

int main() {

Code

    return 0;      -           Sample necessary formatting

}

cout << "[Text]" << end;   -  Outputs text

cin >> [text];   -  Inputs text

for (int i = 0; i<num; i++){  - For loop example

while(i>0) {

        Command           While Loop Example

        n--;

}

//Single Comment

/*Block Comment*/

Variable Declaration –

Char [Variable]

Int [Variable]

Float [Variable]

Double [Variable]

*[Variable]

Git Commands –

Process to add and update git repositories

git init

git add [file name]

git commit –a –m [commit #]

git push –u origin master

Root Initialization Commands –

Must initialize Xming first and enable X11 forwarding on ssh client

cd ~/CMSSW_5_3_30

cmsenv

root –nw

Root Samples

TH1F *histo1 = new TH1F("histo1","S",50,0.,50.);  - Example Histogram

TF1 *fa1 = new TF1("fa1","sin(x)/x",0,10); - Example Graph

[pointer] -> Draw(); Creates the Graph/Histogram