hi
I've been searching all over the internet to simply do the following:
$tempfile = "/usr/school/tempfile.dat";
$myvar = param('add'); ###add is the variable assigned to a popup menu
`ls -l $myvar * >> $tempfile` ###I also tried `ls -l ${myvar}* >>$tempfile`
open(ADDLIST,... (6 Replies)
When reading over some perl code in a software document, I came across an assignment statement like this
$PATH = ${PROJECT}/......./....
In this particular form of scalar variable assignment, what does the curly braces operators do ? Also, what is the benefit in doing scalar assignment this... (3 Replies)
Hello,
I have a comma delimited input feed file. The first field has directory location and the second field has file name.
Ex of input feed:
/export/appl/a,abc*.dat
/export/appl/b,xyz*.dat
/export/appl/c,pmn*.dat
Under each directory, there would be many files like...
.
.
.... (4 Replies)
I am trying to use a script to replace the header of each file, whose filename are stored within the array $test, using the sed command within a Perl script as follows:
$count = 0;
while ( $count < $#test )
{
`sed -e 's/BIOGRF 321/BIOGRF 332/g' ${test} > 0`;
`cat 0 >... (2 Replies)
I need to use array elements while pattern matching.
@myarr = (ELEM1, ELEM2, ELEM3);
following is the statement which I am using in my code. Basically I want to replace the ELEM1/2/3 with other thing which is mentioned as REPL here.
if (condition) {
s/(ELEM1|ELEM2|ELEM3): REPL: /;
}
I... (3 Replies)
hi
every resource i see regarding DBI refers to retrieving data from a database into and array or a hash, but i havent seen anything on how to pull out a single value to a scalar
in my database i have a field called "forcewrite" with a value of "6". I am trying to connect to the database,... (2 Replies)
Hello,
I have the following perl array:
@longname = (Fasthernet0/0 Fasthernet0/1 Serial0/1/0 Serial0/2/1 Tunnel55 Tunnel77)
with the followinh array:
@shortname = (Fa0/0 Fa0/1 Se0/1/0 Se0/2/1 Tu55 Tu77)
in other words, I need to remove the following from each element in the array... (4 Replies)
Experts,
I am looking to compare elements of 2 array using perl. Below is not the actual code but logic wise something like this.
my $version = "MYSQlcl-5.2.4-264.x86_64"; <-- split this word into array as (5 2 4 264) ( which is to extract only the version number from the package name)
my... (1 Reply)
Hello Folks,
I have a DataDumper variable and the output of the dataDumper is printed in the below manner.
print Dumper \%mnemonics;
VAR1 = {
'SYS-7-CLI_SCHEDULER_LOG_STORED' => ,
'CRYPTO-6-IKMP_MODE_FAILURE' => ,
'AAAA-4-SERVUNDEF' => ,
... (1 Reply)
Discussion started by: scriptscript
1 Replies
LEARN ABOUT DEBIAN
net::rawip::libpcap
RawIP::libpcap(3pm) User Contributed Perl Documentation RawIP::libpcap(3pm)NAME
Net::RawIP::libpcap - An interface to libpcap in Net::RawIP(3pm)DESCRIPTION
Function The input parameters The output parameters
open_live a network Return value is a pcap_t*
device(eth0,ppp0,...); If retval less than zero
a snap length; then $err filled with
a promisc - boolean; an error string.
a timeout in sec;
$err is an undef scalar;
open_offline a filename which is filled Return value is pcap_t*
with a raw output of dump; If retval less than zero
$err is an unfef scalar; then $err filled with
an error string.
dump_open pcap_t*; Return value is a FILE*
$err;
lookupdev $err; Return value is a name
of first device which is
found by libpcap
lookupnet a network device; a netnumber;
a netnumer is undef; a netmask;
a netmask is undef; If retval less than zero
$err is undef; then $err filled with
an error string.
dispatch a scalar with pcap_t*; No output parameters.
number of packets for proce-
ssing;
reference to the perl call-
back,this callback will be
called with 3 parameters:
$_[0] is fourth parameter
from dispatch,
$_[1] is a scalar with struc-
ture pcap_pkthdr for a current
packet,
$_[2] is a scalar with a current
packet;
fourth parameter could be
an array or a hash reference
or a pointer (FILE*) returned
by dump_open,it can be unre-
ferenced in the perl call-
back or be used as a perl
filehandle in that callback.
loop As for dispatch. As for dispatch.
dump As for a perl callback No output.
but $_[0] must be a pointer
(FILE*) only.
compile a scalar with pcap_t*; a scalar with bpf_program.
a bpf_program is undef; If retval is less than zero
a scalar with filter string; then there was a problem with
a boolean value (optimize or filter grammar.
not);
a scalar with netmask;
setfilter a scalar with pcap_t*; If retval is less than zero
a scalar with bpf_program then there was a problem while
returned by compile. settting filter.
next a scalar with pcap_t*; A scalar with next packet;
a scalar with with struc- a scalar with with structure
ture pcap_pkthdr for a current pcap_pkthdr also will be modi
packet,originally is undef. filed for an every packet and
it can be accessed but for read
only.
datalink a scalar with pcap_t*; Retval is the link layer type,
e.g. DLT_EN10MB.
snapshot a scalar with pcap_t*; Retval is the snapshot length
specified when open_live was
called.
is_swapped a scalar with pcap_t*; returns true if the current
savefile uses a different
byte order than the current
system.
major_version a scalar with pcap_t*; returns the major number
of the version of the pcap
used to write the savefile.
minor_version a scalar with pcap_t*; returns the minor number of the
version of the pcap used to
write the savefile.
file a scalar with pcap_t*; returns the name of the
savefile.
stats a scalar with pcap_t*; If retval 0 then a scalar
a scalar with structure with structure pcap_stat will
pcap_stat,originally undef be filled with the
packet statistics.
fileno a scalar with pcap_t*; returns the file descriptor
number of the savefile.
A core perl function is
available as CORE::fileno.
geterr a scalar with pcap_t*; returns the error text
pertaining to the last pcap
library error.
perror a scalar with pcap_t*; prints the text of the last
a scalar with prefix; pcap library error on stderr,
prefixed by prefix.
close a scalar with pcap_t*; closes the files associated with
pcap_t* and deallocates
resources.
A core perl function is
available as CORE::close.
dump_close a scalar with pcap_t*; closes the savefile.
AUTHOR
Sergey Kolychev <ksv@al.lg.ua>
SEE ALSO Net::RawIP(3pm),pcap(3).
perl v5.14.2 2007-04-03 RawIP::libpcap(3pm)