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Operating Systems Course

Teacher: Stefano Scanzio
email: stefano.scanzio [ AT_SYMBOL ]


  • [2019/12/09]: Added text of the eighth exam, added new and definitive cheat sheets, added solution of 2019/09/05 exam, added example of bash script Exam 20140908
  • [2019/12/04]: Added examples of bash scripts for Read files and about Arrays (normal and associative)
  • [2019/12/02]: Changes in course calendar: Calendar
  • [2019/11/28]: Added text of the seventh laboratory and solutions of the fifth laboratory
  • [2019/11/25]: Added text of the sixth laboratory and solutions of the fourth laboratory
  • [2019/11/22]: Added possibilities of two interships and one PhD. See at the end of the page. Please, disseminate the information!
  • [2019/11/18]: Added find and filters, text of the fifth laboratory, and solution of the sixth laboratory
  • [2019/11/08]: All the slides of the course have been added
  • Added text of the fourth laboratory
  • Added in Exams section the cheat sheets that can be used during the exam (PRINT them!)


  • u20: AWK (Outside the course topics) Not required at the exam


In the LAIBs you can use a virtual machine with Ubuntu: guide, login link (links accessible only within the Polito network).

  • Lab01: Management of files and directories, Permissions management, Link and comparisons between files, C programs and compilation
  • Lab02: Recursive visualization of a directory, Compilation and makefile, Recursive copy of a directory
  • Lab03: Analysis of concurrent programs, System call fork and shell commands related to processes, Precedence graph
  • Lab04: System call fork, exec, system
  • Lab05: Shell commands for processes and redirection, concurrency using fork() and wait(), use of signals
  • Lab06: Signals and pipe, Pipe and synchronization, Command find, Filters
  • Lab07: From recursion to concurrency, Concurrent file sorting, Concurrent file sorting and merging
  • Lab08: Bash scripts



Cheat sheet

Cheat sheet that can be used during the exam (PRINT them!)

Exam texts and solutions


[2019/11/25] 2 Intership and a PhD position in Luxembourg (Luxembourg Institute of Science and Technology - LIST)
For student at the end of an engineering cycle (Master of Science or Master 2) in Electronic Engineering, Computer Science or Applied Mathematics.
The intership will be paid.
Please contact stefano.scanzio [at] and mariarita.palattella [at]
Details: Intership 1 :Intership_LIST_5G_IoT_satellite_networks.pdf, Intership 2: MRT-2020-Intern-003.pdf, PhD: LoRaSAT_PhD_open_position.pdf

Please, if interested express your interest quickly!

Proposed Theses (Master Degree)

Thesis proposals can be downloaded here:
If interested, for informations, contact: stefano.scanzio stefano.scanzio [ AT_SYMBOL ] (tel. 011 090 5438) www:

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