Lex - How to run / compile a lex program on commandline

Question

I am very new to Lex and Yacc. I have a Lex program. Example: wordcount.l

I am using windows and putty.

I am just trying to run this file..

Answer 1

lex file.l
gcc lex.yy.c -ly -ll
./a.out

These also works. I am using this in Ubuntu 14.04.

Answer 2

You first have to go to the directory which the file wordcount.l is in using cd. Then using lex wordcount.l will make the file lex.yy.c. To the run the program you need compile it with a c compiler such as gcc. With gcc you can compile it using gcc -lfl lex.yy.c. This will create a.out which can be run using ./a.out