Is it possible to combine a regular expression with a aritmetical expression? For example, taking a 8-numbers caracter sequece and casting each output of a grep, comparing to a constant.
THX! (2 Replies)
Hi sir,
i want to make such programe which takes MAC(Ethernet) address of any host & give me its IP address.......
but i'm nt getting that how i can pass the MAC address to Frame........
Please give me an idea for making such program...
Thanks & regards
Krishna (3 Replies)
Hi does anybody have a ksh/sh/bash function that i can embed into my script that i could use to validate an inputted IP address, I tried using one big long regular expression but it got very long and complicated
ie
#!/bin/ksh
echo " Please enter your IP address"
read IP
---some function... (6 Replies)
Hi there
I lost connectivity to one of our remote systems and when I checked the messages log I found the following:
Aug 10 23:42:34 host xntpd: time reset (step) 1.681729 s
Aug 16 13:20:51 host ip: WARNING: node "mac address" is using our IP address x.x.x.x on aggr1
Aug 16 13:20:51 host... (9 Replies)
CA_RELEASE has a value of 6. I need to check if that this is a numeric value. if not error.
source $CA_VERSION_DATA
if * ]
then
echo "CA_RELESE $CA_RELEASE is invalid"
exit -1
fi
+ source /etc/ncgl/ca_version_data
++ CA_PRODUCT_ID=samxts
++ CA_RELEASE=6
++ CA_WEEK_NO=7
++... (3 Replies)
Hi all ,
I have a string in my weblog xheader v6-day-2011:xx:yy:zz:qq:qq:ww:ee:rr
My requirement is to lookup the sting v6-day-2011 in this header and if found would like to extract the V6 ip part .
v6-day-2011 is always constant for a ipv6 entry so i would like to extract every thing... (4 Replies)
Hi all,
How am I read a file, find the match regular expression and overwrite to the same files.
open DESTINATION_FILE, "<tmptravl.dat" or die "tmptravl.dat";
open NEW_DESTINATION_FILE, ">new_tmptravl.dat" or die "new_tmptravl.dat";
while (<DESTINATION_FILE>)
{
# print... (1 Reply)
Hello All,
I'm trying to extract the lines between two consecutive elements of an array from a file.
My array looks like:
problem_arr=(PRS111 PRS213 PRS234)
j=0
while } ]
do
k=`expr $j + 1`
sed -n "/${problem_arr}/,/${problem_arr}/p" problemid.txt
---some operation goes... (11 Replies)
four interfaces with ifconfig
all interfaces have the same mac. If is not set for unique.
but it still works.
what difference does it make to have all macs the same or different? (4 Replies)
Discussion started by: rrodgers
4 Replies
LEARN ABOUT FREEBSD
mac_prepare
MAC_PREPARE(3) BSD Library Functions Manual MAC_PREPARE(3)NAME
mac_prepare, mac_prepare_type, mac_prepare_file_label, mac_prepare_ifnet_label, mac_prepare_process_label -- allocate appropriate storage for
mac_t
SYNOPSIS
#include <sys/mac.h>
int
mac_prepare(mac_t *mac, const char *elements);
int
mac_prepare_type(mac_t *mac, const char *name);
int
mac_prepare_file_label(mac_t *mac);
int
mac_prepare_ifnet_label(mac_t *mac);
int
mac_prepare_process_label(mac_t *mac);
DESCRIPTION
The mac_prepare family of functions allocates the appropriate amount of storage and initializes *mac for use by mac_get(3). When the result-
ing label is passed into the mac_get(3) functions, the kernel will attempt to fill in the label elements specified when the label was pre-
pared. Elements are specified in a nul-terminated string, using commas to delimit fields. Element names may be prefixed with the '?' char-
acter to indicate that a failure by the kernel to retrieve that element should not be considered fatal.
The mac_prepare() function accepts a list of policy names as a parameter, and allocates the storage to fit those label elements accordingly.
The remaining functions in the family make use of system defaults defined in mac.conf(5) instead of an explicit elements argument, deriving
the default from the specified object type.
mac_prepare_type() allocates the storage to fit an object label of the type specified by the name argument. The mac_prepare_file_label(),
mac_prepare_ifnet_label(), and mac_prepare_process_label() functions are equivalent to invocations of mac_prepare_type() with arguments of
"file", "ifnet", and "process" respectively.
RETURN VALUES
Upon successful completion, the value 0 is returned; otherwise the value -1 is returned and the global variable errno is set to indicate the
error.
SEE ALSO mac(3), mac_free(3), mac_get(3), mac_is_present(3), mac_set(3), mac(4), mac.conf(5), maclabel(7)STANDARDS
POSIX.1e is described in IEEE POSIX.1e draft 17. Discussion of the draft continues on the cross-platform POSIX.1e implementation mailing
list. To join this list, see the FreeBSD POSIX.1e implementation page for more information.
HISTORY
Support for Mandatory Access Control was introduced in FreeBSD 5.0 as part of the TrustedBSD Project. Support for generic object types first
appeared in FreeBSD 5.2.
BSD August 22, 2003 BSD