Thursday July 08, 2004
ksh scripting #2: unix friendly filename
Every time I rip and encode tracks from my CD collections (yes I still buy them) to mp3, I had the need of getting a unix friendly filename from the human readable title since I use Solaris to do everything. I typically grab the titles from a free cddb out there that happens to have my album's details. But these come in various formats such as:
9. title of track nine
10) track-ten's title
11: track eleven title & nothing else...
While I need them to be unix friendly, such as:
9:title_of_track_nine
10:track-ten_s_title
11:track_eleven_title_+_nothing_else___
So I script it with the help of sed(1), and what a monster I've created!
#!/bin/ksh
cddb=$1
ttlist=`sed 's/^[ ]*//;/^$/d;/^[^0-9]/d;s/[ ]*$//;s/[ ][ ]*/ /g;\
/^[0-9][0-9]*[. _ :-)]/s/[. _ :-)][. _ :-)]*/:/;s/[".]//g;\
y/ '"'"'&\//__++/' $cddb`
# remove leading spaces and tabs
# s/^[ ]*//
# remove blank lines
# /^$/d
# ignore lines not beginning with a number
# /^[^0-9]/d
# remove trailing spaces and tabs
# s/[ ]*$//
# compress 1 or more adjacent white spaces
# s/[ ][ ]*/ /g
# replace characters delimiting track no. from the title, with a single delimiter
# /^[0-9][0-9]*[. _ :-)]/s/[. _ :-)][. _ :-)]*/:/
# remove characters that won't look good if transformed to "_"
# s/[".]//g
# transform space and special chars to shell friendly chars
# y/ '&\//__++/
# create title[track] array elements
for tt in $ttlist
do
let "track = ${tt%%:*}"
title[$track]=${tt#*:}
done
:
:
I'm not even sure if I understand this now that I looked at it again. :(
The for loop that followed put the track title into an array indexed by the track no., nice and neat for whatever I want to do next.
ksh scripting flashback: #1
(2004-07-08 00:00:02.0)
Permalink
|
MCWong
