Node:Programming in M4sh, Previous:Programming in M4sugar, Up:Programming in M4
M4sh provides portable alternatives for some common shell constructs that unfortunately are not portable in practice.
| AS_DIRNAME (pathname) | Macro |
Return the directory portion of pathname, using the algorithm
required by POSIX. See Limitations of Usual Tools, for more
details about what this returns and why it is more portable than the
dirname command.
|