GTU OS Program - 9

9. Write a shell script to display all executable files, directories and zero sized files from current directory.

First of all let's understand the meaning of terms like exectable files, directories and zero sized files

Executable Files means the files that can be exeuted. It is used to perform various functions or operations on a computer. Unlike a data file, an executable file cannot be read because it's compiled. For example executable files in a microsoft windows os is .exe file on maacOS its .dmg and .app.

directories means folders

Zero sized files are those having its size equal to 0.

for displaying executable files we will use find <dirname> -executable -type f command

creating a new file display_info.sh using vim

  1.  tkanu025@hp:~$ vim display_info.sh

Complete code of the program

  1. echo "Executable files"
  2. files="$(find lab_solutions -executable -type f)"
  3. echo "$files"
  4. echo
  5. echo "List of Directories"
  6. dir="$(ls -d */)"
  7. echo "$dir"
  8. echo
  9. echo "List of zero sized files"
  10. zero="$(find -size 0)"
  11. echo "$zero"
  12.  

Interpreting the display_info.sh file and executing it in terminal

  1. tkanu025@hp:~$ chmod +x display_info.sh
  2. tkanu025@hp:~$ ./display_info.sh
Output
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gtu os lab manual,

os GTU Practical,

operating system Programs,

Operating system shellscript programs,

Gtu study material 3140705,

OS 3140702,

os practical list,

shell script programming,

gtu os practical,

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