awk '
{
# print id
printf("%d ", $1);
i=2
# Add every 2 columns, output each val and sum
while (i <= NF) {
printf("%d %d %d ",$i,$(i+1),($i + $(i+1)));
i+=2;
}
print "";
}'
I have one large file, after every 200 line i have to split the file and the add header and footer to each small file?
It is possible to add different header and footer to each file? (1 Reply)
I have one large file, after every 200 line i have to split the file and the add header and footer to each small file?
It is possible to add different header and footer to each file? (7 Replies)
I have a large flat file with variable length fields that are pipe delimited. The file has no new line or CR/LF characters to indicate a new record. I need to parse the file and after some number of fields, I need to insert a CR/LF to start the next record.
Input file ... (2 Replies)
I have done a couple of searches on this and have found many threads but I don't think I've found one that is useful to me - probably because I have very basic comprehension of perl and beginners shell so trying to manipulate a script already posted maybe beyond my capabilities....
Anyway - I... (26 Replies)
Hi,
I'm having a problem printing two consecutive columns, as I iterate through a large matrix by twenty columns and I was looking for a solution.
My input file looks something like this
1 id1 A1 A2 A3 A4 A5 A6....A20 A21 A22 A23....A4001 A4002
2 id2 B1 B2 B3 B4 B5 B6...
3 id3 ...
4 id4... (8 Replies)
Hi,
I have a data file that contains 61 columns. I want to delete all the columns except columns, 3,6 and 8. The columns are tab de-limited. How would I achieve this on the terminal?
Thanks (2 Replies)
Hi all. Wondering if someone can help with an awk solution to a problem I'm stumped with.
I have a matrix file with >1000 fields and would like to add another column after each column with a text label. For example:
Input:
$cat file.txt
name col1 col2 col3 coln
aaaa ... (2 Replies)
Dear all,
I want to extract around 300 columns from a very large file with almost 2million columns. There are no headers, but I can find out which column numbers I want. I know I can extract with the function 'cut -f2' for example just the second column but how do I do this for such a large... (1 Reply)
Discussion started by: fndijk
1 Replies
LEARN ABOUT DEBIAN
printexc
Printexc(3o) OCaml library Printexc(3o)NAME
Printexc - Facilities for printing exceptions.
Module
Module Printexc
Documentation
Module Printexc
: sig end
Facilities for printing exceptions.
val to_string : exn -> string
Printexc.to_string e returns a string representation of the exception e .
val print : ('a -> 'b) -> 'a -> 'b
Printexc.print fn x applies fn to x and returns the result. If the evaluation of fn x raises any exception, the name of the exception is
printed on standard error output, and the exception is raised again. The typical use is to catch and report exceptions that escape a func-
tion application.
val catch : ('a -> 'b) -> 'a -> 'b
Printexc.catch fn x is similar to Printexc.print , but aborts the program with exit code 2 after printing the uncaught exception. This
function is deprecated: the runtime system is now able to print uncaught exceptions as precisely as Printexc.catch does. Moreover, calling
Printexc.catch makes it harder to track the location of the exception using the debugger or the stack backtrace facility. So, do not use
Printexc.catch in new code.
val print_backtrace : Pervasives.out_channel -> unit
Printexc.print_backtrace oc prints an exception backtrace on the output channel oc . The backtrace lists the program locations where the
most-recently raised exception was raised and where it was propagated through function calls.
Since 3.11.0
val get_backtrace : unit -> string
Printexc.get_backtrace () returns a string containing the same exception backtrace that Printexc.print_backtrace would print.
Since 3.11.0
val record_backtrace : bool -> unit
Printexc.record_backtrace b turns recording of exception backtraces on (if b = true ) or off (if b = false ). Initially, backtraces are
not recorded, unless the b flag is given to the program through the OCAMLRUNPARAM variable.
Since 3.11.0
val backtrace_status : unit -> bool
Printexc.backtrace_status() returns true if exception backtraces are currently recorded, false if not.
Since 3.11.0
val register_printer : (exn -> string option) -> unit
Printexc.register_printer fn registers fn as an exception printer. The printer should return None or raise an exception if it does not
know how to convert the passed exception, and Some s with s the resulting string if it can convert the passed exception. Exceptions raised
by the printer are ignored.
When converting an exception into a string, the printers will be invoked in the reverse order of their registrations, until a printer
returns a Some s value (if no such printer exists, the runtime will use a generic printer).
Since 3.11.2
OCamldoc 2012-06-26 Printexc(3o)