Shell scripting: Absolute path name of a file given as parameter
youshi10 at u.washington.edu
Thu Apr 12 09:04:50 UTC 2007
Aitor San Juan wrote:
> Hi List,
> Just a simple question.
> I have developed a shell script that, among other things, shows the filename
> that was specified as a parameter.
> However, when I invoke the script and the file is located in the current working
> directory, it just shows: ./my_input_filename
> I'd like the script to show the full path name of the input file. I wonder
> whether there is or not an equivalent to %~f1 (Windows Batch file programming).
> This parameter extension expands parameter %1 ($1 in shell scripting jargon) to a
> Fully qualified path name.
> Any hint would be highly appreciated.
> Thanks in advance.
You could always do it relative to the current working path, i.e.
There's another way to do this by determining the absolute path of the
shell script, but that was a bit more complicated and I don't remember
where the documentation for that is right now..
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