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dax965

Member

Registered: 2007-09-09

Posts: 35

too many arguments

I have a bash script and I'm getting this:

status.sh: line 36: [: too many arguments

Here's lines 35 through 37:

                        music=$(mocp -i | sed -ne 's/^Title: \(.*\)$/\1/p');
                        [ -z $music ] && music=$(mocp -i | sed -ne 's/File: .*\/\([^ .].*\)$/\1/p')
                        ptime=$(mocp -i | sed -ne 's/^TimeLeft: //p')

I didn't make this script, this is just for a status bar I'm whipping together.  Anyone know why I am getting this error?

peart

Member

From: Kanuckistan

Registered: 2003-07-28

Posts: 510

Re: too many arguments

Maybe your $music variable contains whitespace.  try wrapping it in quotes:

[ -z "$music" ] ...

dax965

Member

Registered: 2007-09-09

Posts: 35

Re: too many arguments

Maybe your $music variable contains whitespace.  try wrapping it in quotes:

[ -z "$music" ] ...

Thanks. 

Also, I need help getting the volume number.  Here's the command I have right now

amixer get PCM | awk '/^  Front Left/ { print $5 }'

But that outputs

[100%]

How can I edit that to make it only say 100, not [100%]?

Gilneas

Member

From: Netherlands

Registered: 2006-10-22

Posts: 320

Re: too many arguments

String editing is easier with sed:

amixer get Front | sed -ne '/^  Front Left/ s~.*\[\([0-9]*\)%\].*~\1~p'

It can be done with awk though, using the substring function:

amixer get Front | awk '/^  Front Left/ { print substr($5,2,length($5)-3) }'

jbromley

Member

From: Pasadena, CA

Registered: 2007-02-04

Posts: 268

Re: too many arguments

Also, I need help getting the volume number.  Here's the command I have right now

amixer get PCM | awk '/^  Front Left/ { print $5 }'

But that outputs

[100%]

How can I edit that to make it only say 100, not [100%]?

I like tr myself:

amixer get PCM | awk '/^  Front Left/ { print $5 }' | tr -d [%]

The -d switch makes tr delete characters instead of translating.

Regards.