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File format check

 
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# 8  
Old 10-21-2008
Thanks again!!!
# 9  
Old 10-21-2008
Or even without double '>':

Code:
awk -F\| '{print>((NF!=nf?"bad":"good")"_file.txt")}' nf="$tmp" infile

# 10  
Old 10-21-2008
Right, >> is append, and > is replace.

The ternary operator is your friend in these simple cases. I started to use the ternary operator but then thought the OP might have more print lines or other operations necessary on either side of the condition, so gave way to the traditional if-then-else.
MrC
# 11  
Old 10-21-2008
Yep,
I only wanted to point out that the AWK redirection is different from the shell redirection. From Effective AWK Programming:

Quote:
When this type of redirection is used, the output file is erased before the first
output is written to it. Subsequent writes to the same output file do not erase
output file, but append to it. (This is different from how you use redirections in
shell scripts.) If output file does not exist, it is created.
Consider the following:

Code:
$ cat file
1 2 
1 2 3
1 2
1 2 3
1 2
$ awk '{print>((NF!=2?"more":"two")"_columns")}' file
$ head *_col*
==> more_columns <==
1 2 3
1 2 3

==> two_columns <==
1 2 
1 2
1 2

Last edited by radoulov; 10-21-2008 at 03:26 PM..
# 12  
Old 10-21-2008
Understood. The redirection plumbing in awk is setup once, and subsequent > or >> redirections simply continue writing on the already open FD. In shell scripts, the FD is closed at the end of each command.
MrC
 
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