topic Re: awk - printing all fields other than first field in a variable length record in Operating System - HP-UX

awk - printing all fields other than first field in a variable length record

Bala_4 — Tue, 06 Mar 2001 19:14:51 GMT

Hi

How do you print all fields other than the first field in a variable length record using awk utility ? The field delimiter is space.

Any help is appreciated
Thanks in advance
Bala

Re: awk - printing all fields other than first field in a variable length record

Patrick Wallek — Tue, 06 Mar 2001 20:04:03 GMT

$0 should print the whole line.

awk '{ print $0 }'

For example: awk '{ print $0 }' < /tmp/test

will print the contents of the file /tmp/test no matter what the line length.

Re: awk - printing all fields other than first field in a variable length record

Bala_4 — Tue, 06 Mar 2001 20:31:41 GMT

Hi
I donot want to print the first field. $0 will print the full record. I want to print from second field to last field. Here the last field is not fixed since it is a variable length record.
Thanks

Re: awk - printing all fields other than first field in a variable length record

James R. Ferguson — Tue, 06 Mar 2001 20:42:02 GMT

Hi Bala:

Try this:

# echo "a b c \nd e f"|awk '{array [NF]=$0;for (i=2;i<=NF;i++) printf("%s ",$i);printf("\n")}'

This will echo two lines:

b c
e f

...which represent the second through last fields of the two records input by example.

...JRF...

Re: awk - printing all fields other than first field in a variable length record

Madhu Sudhan_1 — Tue, 06 Mar 2001 20:45:37 GMT

Bala :
You can use $1 $2 ... $n to print the individual fields of the current record.

...Madhu

Re: awk - printing all fields other than first field in a variable length record

James A. Donovan — Tue, 06 Mar 2001 20:46:58 GMT

You'll need to do something like the following...

# cat /etc/passwd|while read LINE;do
> echo $LINE|awk -F":" '{split($0,a)}
> {for(i=2;i<=NF;i++) print a[i]}'
> done

This prints out everything except the first field of the /etc/passwd file.

Re: awk - printing all fields other than first field in a variable length record

Patrick Wallek — Tue, 06 Mar 2001 20:53:30 GMT

Try this. It will cat a file and look at field 1 and delete it, and then look at the first space on the line and delete it and then print the rest of the record.

cat test | awk '{sub($1,"");sub(" ","");print}'

Re: awk - printing all fields other than first field in a variable length record

Patrick Wallek — Tue, 06 Mar 2001 20:53:51 GMT

Re: awk - printing all fields other than first field in a variable length record

Patrick Wallek — Tue, 06 Mar 2001 20:55:54 GMT

Sorry for the duplication of the last post. It wasn't obvious that it actually took my post.

Here is some sample output from my last post:

The test file first:
# cat test
this is line 1
this is another line in the file
this is line 3
this is yet another line in the test file
line 4

And now running the command:
# cat test | awk '{sub($1,"");sub(" ","");print}'
is line 1
is another line in the file
is line 3
is yet another line in the test file
4

Re: awk - printing all fields other than first field in a variable length record

Rita C Workman — Tue, 06 Mar 2001 21:10:42 GMT

OK..try this..I used the /etc/passwd for my test.

#!/bin/sh
cat /etc/passwd | awk -F: '
{for (i=2; i <= NF ; i++) print "Field",i,": ",$i}'

If I've retyped this right, ...

/rcw

Re: awk - printing all fields other than first field in a variable length record

Rodney Hills — Tue, 06 Mar 2001 21:34:17 GMT

Instead of awk, how about using "cut". Like-
cut -d" " -f 2- filename

Re: awk - printing all fields other than first field in a variable length record

Vikas Khator — Tue, 06 Mar 2001 21:34:18 GMT

Hi Bala ,

Try this :

cat yourfile | awk '{ $1="" ; print $0 }'

Re: awk - printing all fields other than first field in a variable length record

Bala_4 — Tue, 06 Mar 2001 21:36:48 GMT

Hi Everone
Here is a simple solution which I found.

awk '{$1="";print}'

Thanks for all the help
Bala

Re: awk - printing all fields other than first field in a variable length record

Madhu Sudhan_1 — Thu, 08 Mar 2001 19:35:18 GMT

Bala :
Feel free to assign points.
...Madhu