Red Hat ENTERPRISE LINUX WS 2.1 - Guide d'installation Page 221

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offers the user a way to communicate with the OS.
is selected upon installation of a new user
Type echo $SHELL to find out which shell you use!
different Linux shells and the files executed during login:
.profile
sh and bash (also executes .bashrc if it exists)
.cshrc
csh and tcsh
Important differences between shells
1
:
How do you set environment variables
sh and bash:
1. export variable=value
csh and tcsh:
1.setenv variable value
tcsh and bash offer history substitution
you can use the arrow keys to repeat and modify previously entered commands.
13.3.1 How to use the bash
Open a shell and type in commands
How to repeat a previously entered command
1. use the arrow keys to get a command back
2. hit the Enter key to execute the command again
1. type man sh or man csh for more information on these shells
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