Programming

Sir,
I'm new to awk programming, i have been stuck in a problem could you plz clear that for me.

$ who > file1 #(say)

$cat file1 (enter)

uf146 xyz 1234
ge001 mmbm 999
mgu155 ooo0 7yh
ge101 unix 1234

$vi awk1.prog

awk -F " " ' BEGIN {
print " Enter the user name " ;
getline name < "-" ;
}

{
while(name~$1)
{
print $0; # complete record
exit;
}
}' file1

output:

$bash awk1.prog
Enter the user name : mgu155

ge101 unix 1234

$bash awk1.prog

Enter the user name : ca123

???? when no user ??? no output ??? // what we should do to promt no user exists

-ANAND

seems that you have posted under the wrong umbrella ...

try this,

Code:

nawk -F " " ' BEGIN { line=""; i=0; print "enter name: " ; getline name < "-"; }
{ 
  while(name~$1)
  {
    i=1;    
    line=$0;
    break;
  }
 }
END {
 {
    if( i > 0)
    {
      print line;
    }
    else
    {
      printf "%s not found\n", name;
    }
  }
}' file1