Shell Programming and Scripting

what is wrong with the code below;
it starts ,then does nothing, (even it doesn't end)

#!/bin/awk
x=1
b="foo"
awk printf("%s got a %d on the last test\n","Jim",83)
myout=("%s-%d",b,x)
print myout

awk is awaiting input from a file or command line. If you want to run it without having to enter the input, try:

BEGIN{
a=1;
b="foo";
printf("%s got a %d on the last test\n","Jim",83)
myout="%s %d \n";
printf myout,b,a;
}
_______________________________________________________________________
else try:
{
a=1;
b="foo";
printf("%s got a %d on the last test\n","Jim",83)
myout="%s %d \n";
printf myout,b,a;
}'
"hello"
To end it type ^D. Pressing enter continues printing the output.

unfortunately it doesnt work correctly
although i made the modifications that you told

what mesaage are you getting? Could you paste the code you ran?
Also, which OS and version of awk are you using?

#!/bin/awk
BEGIN{
a=1;
b="foo";
printf("%s got a %d on the last test\n","Jim",83)
myout="%s %d \n";
printf myout,b,a;
}

********************************
********************************
#!/bin/awk
{
a=1;
b="foo";
printf("%s got a %d on the last test\n","Jim",83)
myout="%s %d \n";
printf myout,b,a;
}'


i tried both of the code above, my OS is OSF1,
i dont know the version of awk (how can i learn?)

i dont get any messages, the scripts starts, and does nothing

Hi,

There are different versions(flavors) of awk like gawk, nawk etc. In Linux awk is actually a link to gawk which provides some extra capability. I have no idea about OSF1. When i try and execute the file using ./filename it doesn't works. So, i excute the file by awk -f <filename>. It executes fine if the code has "BEGIN" construct.
If i execute the code without BEGIN
{
a=1;
b="foo";
printf("%s got a %d on the last test\n","Jim",83)
myout="%s %d \n";
printf myout,b,a;
}
it waits for input or filename. So, i type "hello" and press enter. It displays the output and keeps on doing so pressing enter until i press ^D. ^D specifies end of file. awk's behavior is such that it executes the code for each line in the input file.

If the scripts starts for you, try typing any string and press enter. Does it comes up with the output message?

yes everything works exactly as you have said.
thank you