replacement string in awk

Jdamian — Tue, 10 Jun 2003 14:05:23 GMT

Hi

Do the substitution strings as \n work in sub() and gsub() awk functions ?

$ echo "A B" | awk '{ sub("A","\\1"); print }'
\1 B

P.D: '&' works fine

Re: replacement string in awk

curt larson_1 — Tue, 10 Jun 2003 16:02:07 GMT

the \n notation where \n matches the nth pattern previously saved by "$" and "$" is from the unix command sed, not from awk

for awk you'd do something like this:

a=abc
b=def
print "$a $b" |
awk '{
sub($1,$2);
print $1;
}'

with awk each input line forms a record containing any number of fields. each field can be referenced by its position in the record. $1 refers to the value of the first field; $2 to the second field, and so on. $0 refers to the entire record.

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replacement string in awk

Re: replacement string in awk