Ok, another fun hiccup in my UNIX learning curve. I am trying to count the number of occurrences of an IP address across multiple files named example.hits. I can extract the number of occurrences from the files individually but when you use grep -c with multiple files you get the output similar to... (5 Replies)
Hi All
Can anyone help me with the following du querry. I am trying to achieve a total size for all the zipped files in a directory. Using du -k *.gz gets me a file by file list but no handy total at the bottom.
Thanks
Ed (9 Replies)
Good afternoon! Im new at scripting and Im trying to write a script to
calculate total space, total used space and total free space in filesystem names matching a keyword (in this one we will use keyword virginia). Please dont be mean or harsh, like I said Im new and trying my best. Scripting... (4 Replies)
Hello,
I have one script which takes some time to complete.
I Need the total exact time taken by this script.
How can i modify this script.
Regards,
Sam. (21 Replies)
I'm using a .txt file filled with domain names for dig to use, the problem is that when i look at the results I get the query time for each individual query, I want to know how long it took in total for all queries to run, how can I achieve this? any help would be greatly appreciated, thank you.... (3 Replies)
Through find command I identified the files older that 1 year. I need the overall size utilizes by these 1 year older files. Please share me the command to identify it .Thanks
Please post in an adequate technical forum! (3 Replies)
Discussion started by: Sang
3 Replies
LEARN ABOUT CENTOS
io::innerfile
IO::InnerFile(3) User Contributed Perl Documentation IO::InnerFile(3)NAME
IO::InnerFile - define a file inside another file
SYNOPSIS
### Read a subset of a file:
$inner = IO::InnerFile->new($fh, $start, $length);
while (<$inner>) {
...
}
DESCRIPTION
If you have a filehandle that can seek() and tell(), then you can open an IO::InnerFile on a range of the underlying file.
PUBLIC INTERFACE
new FILEHANDLE, [START, [LENGTH]]
Class method, constructor. Create a new inner-file opened on the given FILEHANDLE, from bytes START to START+LENGTH. Both START and
LENGTH default to 0; negative values are silently coerced to zero.
Note that FILEHANDLE must be able to seek() and tell(), in addition to whatever other methods you may desire for reading it.
set_length LENGTH
get_length
add_length NBYTES
Instance methods. Get/set the virtual length of the inner file.
set_start START
get_start
add_start NBYTES
Instance methods. Get/set the virtual start position of the inner file.
binmode
close
flush
getc
getline
print LIST
printf LIST
read BUF, NBYTES
readline
seek OFFFSET, WHENCE
tell
write ARGS...
Instance methods. Standard filehandle methods.
VERSION
$Id: InnerFile.pm,v 1.4 2005/02/10 21:21:53 dfs Exp $
AUTHOR
Original version by Doru Petrescu (pdoru@kappa.ro).
Documentation and by Eryq (eryq@zeegee.com).
Currently maintained by David F. Skoll (dfs@roaringpenguin.com).
perl v5.16.3 2005-02-10 IO::InnerFile(3)