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How to remove first field of the next line?

 
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# 1  
Old 02-19-2016
How to remove first field of the next line?
Hi,

I have an output file like below:

Code:
php1od711,db1,2300
php1od711,db2,2400
php1od711,db3,2500
php1od711,db4,2600
php1od712,dba,3300
php1od712,dbb,3400
php1od712,dbc,3500
php1od712,dbd,3600
php1od713,zz1,4300
php1od713,zz2,4300
php1od713,zz3,4300

Is there an awk/sed trick to automagically strip the first field of the line where it is a repeating field so it looks like as below?

Code:
php1od711 db1 2300
          db2 2400
          db3 2500
          db4 2600
php1od712 dba 3300
          dbb 3400
          dbc 3500
          dbd 3600
php1od713 zz1 4300
          zz2 4300
          zz3 4300

# 2  
Old 02-19-2016
Perhaps something like:
Code:
awk -F, '
{	printf("%*s %s %s\n", length($1),
	    (last == $1) ? "" : last = $1, $2, $3)
}' file

As always, if you want to try this on a Solaris/SunOS system, change awk to /usr/xpg4/bin/awk or nawk.
 
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