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I need help with the cut command.

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Join Date: Jan 2008

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Impact4ever Impact4ever is offline

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I need help with the cut command.

Nov 2nd, 2009

Hi everyone,

In part of my script, I'm trying cut out couple of columns from the df -h command.

The ones I want is the Filesystem column and the Mounted On column. This is what I have so far.

 Help with Code Tags 
 Shell Scripting Syntax (Toggle Plain Text) 
df -h | cut -d " " -f1
df -h | cut -d " " -f1

And that will get the Filesystem in the first field, but for the next column, I tried different fields and I still keep getting a blank space.

Any help you guys can give will be greatly appreciated!
Thanks!

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Join Date: Oct 2009

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baslow

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Try using sed

Nov 2nd, 2009

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Originally Posted by Impact4ever

Hi everyone,

In part of my script, I'm trying cut out couple of columns from the df -h command.

The ones I want is the Filesystem column and the Mounted On column. This is what I have so far.
Help with Code Tags

Shell Scripting Syntax (Toggle Plain Text)
df -h | cut -d " " -f1
df -h | cut -d " " -f1
And that will get the Filesystem in the first field, but for the next column, I tried different fields and I still keep getting a blank space.

Any help you guys can give will be greatly appreciated!
Thanks!

Well, a quick and dirty way would be to interpose a sed command which would reduce multiple spaces to just one. Then the "Mounted On" column would reliably be field 5 (assuming your df outputs in the same format as mine):

 Help with Code Tags 
 Shell Scripting Syntax (Toggle Plain Text) 
df -h | sed -e 's/[ ][ ]*/ /g' | cut -d" " -f1,5
df -h | sed -e 's/[ ][ ]*/ /g' | cut -d" " -f1,5

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Join Date: Feb 2009

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sknake

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Nov 2nd, 2009

You could also use awk:

 Help with Code Tags 
 Shell Scripting Syntax (Toggle Plain Text) 
sk@svn:~/devex$ df -h | awk '{ print $1,$2,$5 }'
sk@svn:~/devex$ df -h | awk '{ print $1,$2,$5 }'