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linux - Count number of line using C

Is there a way to count the number of lines in my file using C?

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If you are referring to the line number within your c source, most compilers support the __LINE__ macro. If you want to count line numbers of arbitrary text files in c, the following functions should be starting points:

  • fopen() to open a file for reading
  • fgets() to read lines
  • eof() to check for end of file
  • fclose() to close the file

Combining these into a line counter is left as an exercise to the reader :)


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