UNIX-Linux: Basic Commands

  • master the fundamental commands of UNIX and Linux operating systems
  • be autonomous in the current use of a UNIX and Linux system

Future operators, software users and application developers under UNIX and Linux

Have a good practice of the computer tool

3  Days.

This UNIX-Linux training takes place in a client-server environment made up of Windows or Linux PCs and UNIX servers (Solaris, etc.)
For “Distance” training, they are carried out with a Teams or Zoom type videoconferencing tool depending on the case, allowing the trainer to adapt his teaching. Find on our website all the details on distance sessions or classes virtual.


History, main characteristics

A UNIX / Linux work session

Connection and disconnection Documentation of the commands Some commands to get started with the system (who, date, cal …)

The shell

UNIX shells (sh, ksh, csh, bash …) Metacharacters (?, *, []) Shell environment (env) Parameterization of a session (.profile, .bash_profile files)

File Management

The files: names, attributes and meta-characters (ls -l, file) The essential commands (cp, ln, mv, rm …) Display or print a file (cat, more, lp)

Directory management

Absolute paths, relative paths Locate and move around in the tree structure (pwd, cd) Create, destroy a directory, a tree structure (mkdir, rmdir, rm-fr)

Rights management

Notion of users and groups (id) Basic UNIX rights Modify rights (chmod) Change the group of a file (chgrp) Default rights (umask)

Redirection and tube mechanisms

Standard input and output redirection Error redirection (2>) Communication pipes (|)


The commands (tail, grep, cut, sort …)

The tools

Finding files (find) Comparing files (cmp, diff, md5sum)

The backup

Tree backup (tar) Compression (compress, gzip, bzip2)

The text editor vi

Create and modify text files with vi Parameterize the vi editor

Process management

The notion of process Visualization of processes (ps, top) Execution of processes, foreground and background (&, fg, bg, nohup) Sending signals to processes (kill)

The network

Diagnostic commands (ping, traceroute, netstat, nslookup) Remote connection (telnet, rlogin, ssh) File transfer (ftp, rcp, scp, sftp) Remote execution (remsh / rsh, ssh)