Shell script to -10 to a text file

StaneASDASD · 10-07-2010, 05:36 AM

Ok, not the best title...

I have this small text file my music player uses to state current data.
looks like this
"
audio_device_state:1:Sound Card
state: play
current: 0
time: 596
random: 0
repeat: 0
single: 0
consume: 0
crossfade: 0
playlist_begin
0:Voyage of the Beagle
...
"

I need a tiny script to change the "time: A" part to "time: A-10", in other words I want script to remove 10 from the time value.So my player with start playing 10seconds earlier in the file. How can I do this? sed? awk? grep?

crts · 10-07-2010, 05:55 AM

Hi,

try this:

Code:

awk '($1 == "time:"){$2 -= 10}{print $0}' filename > newfile

kurumi · 10-07-2010, 06:06 AM

Code:

 ruby -i -F": " -ane '$F[1]=$F[1].to_i-10 if $F[0]["time"];puts $F.join(": ")' file

ghostdog74 · 10-07-2010, 06:15 AM

Code:

awk '$1~/time/{$2-=10}1' file