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Full Discussion: Add comment on last line if found match
Top Forums Shell Programming and Scripting Add comment on last line if found match Post 303008697 by Don Cragun on Tuesday 5th of December 2017 02:59:55 AM
Old 12-05-2017
Having two input files and hoping to get a third output file with no explanation of the logic to be used to make those changes is not at all likely to get you what you want.

Please tell us what operating system you're using.

Please tell us what shell you're using.

Please clearly explain exactly what text should be added to file 2 when certain conditions are met.

Please clearly explain exactly what conditions need to occur to cause a change to be made to file 2.

Note that putting <space>, <tab>, or (especially) <newline> characters in a filename makes it less likely that people writing scripts to use your file will actually handle your file correctly.
 

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LEARN ABOUT DEBIAN

explain_fgetc_or_die

explain_fgetc_or_die(3) 				     Library Functions Manual					   explain_fgetc_or_die(3)

NAME

       explain_fgetc_or_die - input of characters and report errors

SYNOPSIS

       #include <libexplain/fgetc.h>
       int explain_fgetc_or_die(FILE *fp);

DESCRIPTION

       The  explain_fgetc_or_die function is used to call the fgetc(3) system call.  On failure an explanation will be printed to stderr, obtained
       from explain_fgetc(3), and then the process terminates by calling exit(EXIT_FAILURE).

       This function is intended to be used in a fashion similar to the following example:
	      int c = explain_fgetc_or_die(fp);

       fp      The fp, exactly as to be passed to the fgetc(3) system call.

       Returns:
	       This function only returns on success.  On failure, prints an explanation and exits.

SEE ALSO

       fgetc(3)
	       input of characters

       explain_fgetc(3)
	       explain fgetc(3) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 0.52
       Copyright (C) 2008 Peter Miller

															   explain_fgetc_or_die(3)
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