deblank

deblank, a C++ code which makes a copy of a text file in which all blank lines have been removed.

A blank line contains no characters, or else nothing but blank characters.

If the final line of the input file isn't blank, but does not terminate with a NEWLINE character, the corresponding line in the output file will have a terminating NEWLINE appended to it. A previous version of this program would instead inadvertently omit this final line from the output file.

Usage:

deblank old new

• old is the name of the old file;
• new is the name of the new file, to be created from the nonblank lines of old.

Licensing:

The information on this web page is distributed under the MIT license.

Languages:

deblank is available in a C++ version.

Related Data and Programs:

deblank_test

cr2lf, a C++ code which reads a text file and replaces carriage returns by line feeds.

crrm, a C++ code which reads a text file and writes a copy which has no carriage returns.

decomment, a C++ code which makes a copy of a text file which contains no "comment" lines (that begin with "#").

detroff, a C++ code which removes from a file every occurrence of the TROFF overprint pair character+backspace, which can make a MAN page printable;

filum, a C++ code which performs various operations on files.

reformat, a FORTRAN90 code which reads a text file that contains only real values, and writes a copy which has a fixed number of real values on each line.

reword, a C++ code which reads a text file and writes a copy which has a fixed number of words per line.

uncontrol, a C++ code which makes a copy of a text file which contains no control characters.

wrap, a C++ code which makes a copy of a text file in which no line is longer than a user-specified wrap length.

wrap2, a C++ code which wraps long lines in a text file, but which wraps some lines early, to avoid breaking words.

Source Code:

• deblank.cpp, the source code;
• deblank.sh, compiles the code.