TRIM no AWK

Subfuncções TRIM para AWK

function ltrim(s) { sub(/^[ \t\r\n]+/, "", s); return s }
function rtrim(s) { sub(/[ \t\r\n]+$/, "", s); return s }
function trim(s) { return rtrim(ltrim(s)); }

Exemplo:

function ltrim(s) { sub(/^[ \t\r\n]+/, "", s); return s }
function rtrim(s) { sub(/[ \t\r\n]+$/, "", s); return s }
function trim(s) { return rtrim(ltrim(s)); }
BEGIN{OFS=";"}
{
print substr($0,466,32), substr($0,17,3), substr($0,191,3), substr($0,194,2), substr($0,187,2), substr($0,189,2), trim(substr($0,48,10)), substr($0,455,11), substr($0,177,5), substr($0,182,5), trim(substr($0,58,20)), trim(substr($0,98,32)), substr($0,500,3);
}