Convert Relative path to Absolute path, without changing directory to the file location. Post: 303041754

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Top Forums UNIX for Beginners Questions & Answers Convert Relative path to Absolute path, without changing directory to the file location. Post 303041754 by jim mcnamara on Tuesday 3rd of December 2019 11:14:24 PM

12-04-2019

Registered User

In bash on some systems it is a shell function:

Code:

realpath ()                                                                                                                                                                                   
{                                                                                                                                                                                             
    f=$@;                                                                                                                                                                                     
    if [ -d "$f" ]; then                                                                                                                                                                      
        base="";                                                                                                                                                                              
        dir="$f";                                                                                                                                                                             
    else                                                                                                                                                                                      
        base="/$(basename "$f")";                                                                                                                                                             
        dir=$(dirname "$f");                                                                                                                                                                  
    fi;                                                                                                                                                                                       
    dir=$(cd "$dir" && /bin/pwd);                                                                                                                                                             
    echo "$dir$base"                                                                                                                                                                          
}

I cannot vouch for this code because I use the standard C library realpath in a compiled module. The example above is a copy that I found a while back when researching a similar problem to what you have when trying to migrate scripts across Linux distros.

If someone knows more I'd like to see it.

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LEARN ABOUT DEBIAN

ocamlmklib

OCAMLMKLIB(1)						      General Commands Manual						     OCAMLMKLIB(1)

NAME

       ocamlmklib - generate libraries with mixed C / Caml code.

SYNOPSIS

       ocalmklib [options] files

DESCRIPTION

       The  ocamlmklib	command  facilitates the construction of libraries containing both Caml code and C code, and usable both in static linking
       and dynamic linking modes.

OPTIONS

       -h, --help
	      Show summary of options.

       -cclib lib
	      C library passed to ocamlc -a or ocamlopt(1) -a only.

       -ccopt opt
	      C option passed to ocamlc(1) -a or ocamlopt(1) -a only.

       -custom
	      Disable dynamic loading.

       -dllpath dir
	      Add dir to the run-time search path for DLLs.

       -I dir Add dir to the path searched for Caml object files.

       -failsafe
	      Fall back to static linking if DLL construction failed.

       -ldopt opt
	      C option passed to the shared linker only.

       -linkall
	      Build Caml archive with link-all behavior.

       -llib  Specify a dependent C library.

       -Ldir  Add dir to the path searched for C libraries.

       -ocamlc cmd
	      Use cmd in place of ocamlc(1).

       -ocamlopt cmd
	      Use cmd in place of ocamlopt(1).

       -o name
	      Generated Caml library is named name.cma or name.cmxa.

       -oc name
	      Generated C library is named dllname.so or libname.a.

       -rpath dir
	      Same as -dllpath dir.

       -Rdir  Same as -rpath.

       -verbose
	      Print commands before executing them.

       -Wl, -rpath dir
	      Same as -dllpath dir.

       -Wl, -rpath -Wl dir
	      Same as -dllpath dir.

       -Wl, -Rdir
	      Same as -dllpath dir.

       -Fdir  Specify a framework directory (MacOSX).

       -framework name
	      Use framework name (MacOSX).

SEE ALSO

       ocamlc(1), ocamlopt(1).

AUTHOR

       This manual page was written by Samuel Mimram <samuel.mimram@ens-lyon.org>, for the Debian project (but may be used by others).

								  August 19, 2004						     OCAMLMKLIB(1)

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