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Set aliases for Unix/Linux commands

Aliases are short cuts of long commands. You can set aliases in bash, csh and tcsh. Following are examples of setting alias lp6 to print file on room639b. (See Print on the Physics Department printers.)

bash: Add following line in your ~/.bashrc file
```
alias lp6='lpr -Proom639b'
```
csh/tcsh: Add following line in your ~/.cshrc file
```
alias lp6 'lpr -Proom639b'
```

Use command

source ~/.bashrc

source ~/.cshrc

to make aliases available.

Type

alias

to see the list of all your aliases.

The the command of printing file paper.ps will be

lp6 paper.ps

instead of

lpr -Proom639b paper.ps

You can remove the alias by some thing like

unalias lp6

If the alias line is in your ~/.bashrc(~/.cshrc) file, you will have the alias everytime you login.