Shell Programming and Scripting

well I found lot of topics about awk..about if command in awk..

but I had to implement this:

nawk -F"|" '
$47 ~ /0R0011/ { print > ("/home/user/M/MC.tmp" )}
$47 ~ /0R0012/ { print > ("/home/user/M/DuSI.tmp" )}
$47 ~ /0R0014/ { print > ("/home/user/M/FF.tmp" )}
$47 ~ /0R0018/ { print > ("/home/user/M/Cg.tmp" )}
$47 ~ /0R0010/ { print > ("/home/user/M/M1.tmp" )} ' File0


basicly I did it with if command

nawk -F "|" '
{
if ($47=="0R0011")
{
print $0 ; }
} ' File0 > MC.tmp

but for one case only ..is there some kind of case/switch command inside awk/nawk..??

thanks a lot

no, there's not. but you can emulate it.
gawk 3.1.3+ does support switch/case though.

Edit: Just saw you use ~ and not == so the solution I posted won't work ...

You could write something like this (for consecutive numeric values you
can use split to avoid assigning explicitly the array indexes/elements)

Code:

awk 'NR == 1 {
	p = "0R00"
	h = "/home/user/M/"
	e = ".tmp"
	u[p 10] = "M1"
	u[p 11] = "MC"
	u[p 12] = "DuSI"
	u[p 14] = "FF"
	u[p 18] = "Cg"
}
$47 in u {
	print > (h u[$47] e)
}' FS="|" data

Or you can try to build your GNU Awk (>= gawk 3.1.3)
with the --enable-switch option (just found it and I've never used it)
and try the switch statement:

that is what I thought...there is no case or switch statement inside awk/nawk...

any suggestion how can I emulate it..or how can I do it without case/switch with supported statements

You already did it, no?
You want to type less?

Code:

nawk -F"|" '
$47 ~ /0R0011/ { print > ("/home/user/M/MC.tmp" )}
$47 ~ /0R0012/ { print > ("/home/user/M/DuSI.tmp" )}
$47 ~ /0R0014/ { print > ("/home/user/M/FF.tmp" )}
$47 ~ /0R0018/ { print > ("/home/user/M/Cg.tmp" )}
$47 ~ /0R0010/ { print > ("/home/user/M/M1.tmp" )} ' File0

well yes I did it but when I look at it I just know that there is more elegant way...


but anyways thanks for answer that there is no case in awk..I thought that is must be becouse "if else" statement is supported..

i also tryed with

if () {

..}
else
{ if () {
..}
else {..}
}

but this is not working as well..
sorry for beeng boring..but I am courious..

No, it's got nothing to do with 'if/else'. Other (most) languages support both, but not awk.
Once again, radoulov's shown one (elegant) way of emulating switch/case for your particular tasks - you might find it useful to adopt.
not sure if it's the entire script, but it seems like you have an unbalanced '}'. What exactly 'not working'?