On Tue, 1 Jun 2010, Adel ESSAFI wrote:
Hello,
I have a "little" proble with awk
here I have a file which contain data like this
101663.dat
1 122837.920343696
1 121875.899726134
1 8011.13164749145
1 24955.1102952732
when I execute
awk 'BEGIN { }
echo $2
END { print "Fin" }
' testclean
I got this outpout
1 122837.920343696
1 121875.899726134
1 8011.13164749145
1 24955.1102952732
while I am expecting to get
122837.920343696
121875.899726134
8011.13164749145
24955.1102952732
without 1 at the beginning of the line. Can you help please.
Looks like a field separator (FS) problem. The field separator is used by
'awk' to divide a line into fields. The default 'awk' field separator is
"\t" (tab) but your fields are separated by spaces. Try adding this
inside the BEGIN {} block:
FS = " ";
This would give you a script like this:
awk 'BEGIN { FS = " "; }
echo $2
END { print "Fin" }
' testclean
Alternatively, you may specify the field separator as an 'awk' option:
awk -F " " '<your script>' testclean
Dave
--
Dave Ulrick
Email: d-ulrick@xxxxxxxxxxx--
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