Re: How to extract suffix from a filename?

["Ehud Karni" <ehud at unix dot simonwiesel dot co dot il>]

On Tue, 26 Jun 2001 10:38:17 +0100, malcolm.boekhoff <malcolm.boekhoff@actfs.co.uk> wrote:
>
> Okay, it's a silly question - how can I extract the suffix from a file
> name (I know I can use "basename" and "dirname" to get the file and
> directory components)?

if the suffix is of fixed length (usually 3 chars) then (in bash) the
following will do: SUF=`echo <name> | tail -4c`

> I want to do this because my script executed from my .mailcap file in
> mutt spawns off internet explorer or word or whatever other GUI thing is
> required to read attachments like ".doc" and ".pps", etc.

Below are an example from my mailcap that does something like that and
the bash scripts used.

Ehud.


# my change to xv - to save in the original name
image/*; ek-xv %s %{name}

# special case for SW fax files - *.SWD/*.swd
application/octet-stream; ek-xv %s %{name} ;       \
       test=swdchk.sh %{name} ;


The 2 scripts used above (you might want to change the /bin/sh to
/bin/bash, on my Linux and Cygwin /bin/sh=/bin/bash):


#! /bin/sh -e
# script for saving and showing images in mail decoding
# --------------------------------------------------

exec 2>/dev/null                           # no stderr !

IMG="$1"                                   # name of image to show
ONM="$2"                                   # original name
DIR=`dirname $IMG`                         # dir name of image
BNM=`basename $IMG`                        # base name of image
cd $DIR                                    # work in saved dir

if [ "$ONM" = "" ] ; then
    ONM="$BNM"                             # no 2nd arg - use basename
else
    mv "$BNM" "$ONM"                       # change to user original name
fi

case "$ONM" in
   *.SWD | *.swd | *.DCX | *.dcx )         # FAX file
       NMO=`echo "----$ONM" | cut -c5-${#ONM}` # name without extension
       dcx2pcxs "$ONM" ${NMO}_             # break into pcx's
       xview -global -zoom 40 ${NMO}*.pcx > /dev/null &    # view it in BG
       exit 0 ;;                           # exit this script
esac

set +e
xview "$ONM" > /dev/null &                 # view it in BG (no details)

################################### ek-xv ###################################

#! /bin/sh -e
# --------------------------------------------------

case "$1" in                           # attachment file name
   *.SWD | *.swd | *.DCX | *.dcx )     # FAX file
       exit 0 ;;                       # exit this script
   * ) exit 1 ;;                       # NOT fax/swd
esac

############################## swdchk.sh ##############################


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