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 v5.16.2 2005-02-10 IO::InnerFile(3)
Check Out this Related Man Page
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 v5.18.2 2005-02-10 IO::InnerFile(3)
QUERY SCENARIO
Here is the actual scenario
LOOP
echo "$COLNAME $TYPENAME($LENGTH) $NULLS ">>$DDL_FILE
END-LOOP
COLNAME, TYPENAME, LENGTH, NULLS are the variables and within echo statment the output of which has to go into file specified by DDL_FILE.
... (1 Reply)
Ok, so I get that:
sed -n '/START/,/END/p' file
...will print every line from START to END inclusive, but I don't want to see START or END. Apart from the obious:
sed -n '/START/,/END/p' file | grep -v "START" | grep -v "END"
...is there a simpler way of doing this?
Thanks as always! (2 Replies)
Hi,
I would like to process one file which looks like this :
09-04-16-17:11:53 -> count 1
NAME CHAN QID NMSGS NBYTES MAXBYTES P/T
W_DEALNUM 105 123508770 1 10 14 P
W_APPSTAT 106 123508771 1 12 35 P... (8 Replies)
I need help with perl code. I have a data file with lots of data
example: data.txt file
START
DATA1 sjdfh kjhdf
DATA2 sdkjfhk jds dshfgdf
... Around 20 - 30 lines
END
LDDDD awdkjasd a sdkahgdk jasdh
SOME CRAP
Some EMPTY lines etc
START
DATA1 sjdfh kjhdf
DATA2 sdkjfhk jds... (2 Replies)
hi
i have kind of below text in a file.
I want to get a complete paragraph starting with START and ending with before another START) which has a particular string say XYZ or ABC
START XYZ hshjghkjh 45 ljkfd
fldjlj d jldf
START 3493u ABC 454
4545454
4545454 45454
4545454
START ...... (3 Replies)
I have a file which is
DFDG
START
DSFDS
DSDS
XXX
END (VIO)
AADD
START
SDSD
FGFG
END
and I have to print the lines between START and END (VIO). In the files there are multiple places where START would be followed by END with few lines in between but I need to print only if START is... (18 Replies)
I have a file with the following contents.
DTP
START
START
START
DTP
START
DTP
START
DTP
START
I like to join the lines like this
DTP START
START
START
DTP START
DTP START (2 Replies)
Hi, i have file file.txt with data like:
START
03:11:30 a
03:11:40 b
END
START
03:13:30 eee
03:13:35 fff
END
jjjjjjjjjjjjjjjjjjjjj
START
03:14:30 eee
03:15:30 fff
END
ggggggggggg
iiiiiiiiiiiiiiiiiiiiiiiii
I want the below output
START (13 Replies)