/Unix-Lab

This repository contains programs from the Unix Lab - Sem VI according to Bangalore University Syllabus.

Primary LanguageLex

Unix-Lab

This repository contains programs from the Unix Lab - Sem VI according to Bangalore University Syllabus.

Dependencies

  • Ubuntu

    sudo apt install build-essential flex

How to Run?

  • For Shell Scripts:

    Run using: bash <fileName.sh>

  • For C Programs:

    Compile using: cc <fileName.c>

    Run using: ./a.out

  • For Lex Programs:

    Compile using: lex <fileName.l>; gcc lex.yy.c

    Run using: ./a.out

  • For Yacc Programs:

    Compile using: lex <lexProgram.l>; yacc -d <yaccProgram.y>; gcc lex.yy.c y.tab.c;

    Run using: ./a.out

"If" Nesting Yacc Program

  • Sample Runs:

     bash$ ./a.out
 Enter an expression:
 if(statement) { if (statement) { if(statement) statement; } }
 Levels of nesting = 3
 
 bash$ ./a.out
 Enter an expression:
 if(statement) { if (statement) ;}
 Levels of nesting = 2
 
 bash$ ./a.out
 Enter an expression:
 statement;
 Levels of nesting = 0