Is there any wildcard character for awk FS? -

Is there any wildcard character for awk FS? -

is there wildcard character awk fs? in awk script, can’t print values “^r” separators (i don’t know type of character this). on other hand, can print fs=”*” , others. below,

awk 'begin {fs="*"; i=0; ors=""} can’t awk 'begin {fs="^r"; i=0; ors=""}

would appreciate help.

^r octal 022 or hex 12. ascii dc2 (device command 2) character.

octal

in awk, utilize \022 match ^r field separator:

$ echo $'one\022two\022three' onetwothree $ echo $'one\022two\022three' | awk 'begin {fs="\022"; i=0; ors=""} {printf "1=%s; 2=%s; 3=%s\n",$1,$2,$3}' 1=one; 2=two; 3=three regular expression

it possible utilize regular expressions field separators. in regular expressions, opposed shell globs, period wildcard:

$ echo $'one\022two\022three' | awk -f'.t' '{printf "1=%s; 2=%s; 3=%s\n",$1,$2,$3}' 1=one; 2=wo; 3=hree

here, period (wildcard) in .t happens match ^r.

hexadecimal

awk supports hex notation:

$ echo $'one\022two\022three' | awk -c -f'\x12' '{printf "1=%s; 2=%s; 3=%s\n",$1,$2,$3}' 1=one; 2=two; 3=three

awk