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    Welcome to SO! For small changes and remarks, adding a comment to an existing answer might be more appropriate than adding an answer, especially if this copied answer lacks a lot of the other information of the original answer. Once you've collected a bit more reputation, you are able to add comments to other people's answers. For now, try to collect reputation by asking unique, valuable questions or providing stand alone, good answers.
    – cfi
    Commented Mar 21, 2014 at 8:16
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    Since you are referring to nolan6000's answer, please note that the poster dhardy already commented that he would not accept nolan6000's answer because he is not looking for a script. So strictly speaking your answer does not answer the question.
    – cfi
    Commented Mar 21, 2014 at 8:17
  • the function can be added to .profile and hence available for interactive use.
    – adib
    Commented Mar 19, 2015 at 6:19
  • This won't work if $1 is a plain filename: get_abs_filename foo -> nothing (or <current_dir>/foo/foo if foo is a directory).
    – ivan_pozdeev
    Commented Nov 8, 2018 at 14:05