make the output tidy

ust · 10-27-2008, 02:37 AM

I use the command df awk '{print $1 " " $2 " "$3 }' , the output is not tidy , there are different space in each row ,

/dev/sda7 2016016 353856
/dev/sda13 50394996 220080
/dev/sda3 15116868 6611780
/dev/sda8 2016016 1508268

can advise how to make it more tidy as below ?

/dev/sda7 2016016 353856
/dev/sda13 50394996 220080
/dev/sda3 15116868 6611780
/dev/sda8 2016016 1508268

pinniped · 10-27-2008, 04:16 AM

You can try adding tab separators (\t) in the output rather than ordinary spaces.
I haven't done much scripting in years, but look at the manual; there may be a way to specify the column to tab to, which would make it easier to pretty-print.

makyo · 10-27-2008, 11:23 AM

Hi.

It would help if you would use the CODE tags to display data and code. See the sig below for instructions.

It would appear that you are seeking something to align fields in files. If so, then the best field alignment tool I have seen is the perl script at http://www.cs.indiana.edu/~kinzler/align/

I find it to be valuable ... cheers, makyo

ust · 10-27-2008, 10:11 PM

Quote:

Originally Posted by pinniped

You can try adding tab separators (\t) in the output rather than ordinary spaces.
I haven't done much scripting in years, but look at the manual; there may be a way to specify the column to tab to, which would make it easier to pretty-print.

sorry to my fool ,

I try to use \t to my command ( in the middile , end of my command ) , but still not work , can advise how to use it ? thx

df | awk '{print $1 " " $2 " "$3 }' \t

AuroraCA · 10-27-2008, 10:22 PM

Try putting the tabs between the variables in the print statement.

Code:

df | awk '{print $1 "\t" $2 "\t" $3 }'

H_TeXMeX_H · 10-28-2008, 02:18 AM

Remember that with awk you can also use printf() C function which is way more powerful than print, for example:

Code:

df | awk '{ printf("%-10s %10d %10d\n",$1,$2,$3) }'