[ILUG] Shell substitute regexp

[Charles Sharp]

Padraig Brady wrote:
> 
> Doh!
> And I was just using basename yeaterday!
> Actually I noticed dirname yesterday which I
> never new about.
> 
> Padraig.
> 


If you find the basename construct too readable
(you did mention perl) and wish to avoid the
overhead of a command invocation, try:

for i in *.dat; do mv $i ${i%.dat}; done

rgds,
cas


> Kenn Humborg wrote:
> 
> >>Gavin McCullagh wrote:
> >>
> >>
> >>>This is showing my ignorance, but very quickly..
> >>>
> >>>if I have 10 files called 1.dat .. 10.dat
> >>>
> >>>and I want to do
> >>>
> >>>     mv 1.dat 1
> >>>     ...
> >>>     mv 10.dat 10
> >>>
> > Padraig wrote:
> >
> >>How about:
> >>
> >>#!/bin/sh
> >>find -maxdepth 1 -type f -name "*.*" |
> >>sed -e 's/\(.*\)\.\(.*\)/"\1\.\2" "\1"/' |
> >>xargs -r -n2 mv
> >>
> >
> > Bleargh...  basename(1), my friend, basename(1):
> >
> >    for i in *.dat ; do mv $i `basename $i .dat` ; done
> >
> > Later,
> > Kenn
> 
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