Is there a command that sets a variable length?
I have a input of a variable length field but my output for that field needs to be set to 32 char.
Is there such a command?
I am on a sun box running ksh
Thanks (2 Replies)
Hi Unix Champs,
I want to awk on a fixed length file.
Instead if the file was a delimited file, then I could have used -F and then could have easily done manipulation on the fields.
How do i do the same in case of fixed length file?
Thanks in Advance.
Regards. (7 Replies)
Hi,
I need some help regarding in writing a Korne shell script, in determining the fixed length records in a data file. We have already utility in place, which does this work. The Code for this is as below. In the below $1 is the parameter passed to the script, which is the data file name.
... (4 Replies)
OK I am somewhat new to UNIX programming please see what you can do to help.
I have a flat file that is a fixed length file containing different records based on the 1st character of each line. The 1st number at the beginning of the line is the record number, in this case it's record #1.
I... (3 Replies)
New to awk and need some help. I have a script that I would like to make more compact. I want to read a file and grab every field, from every record, except the last field. The records are variable length and have varying number of fields. A record will have at least two fields, but can have... (9 Replies)
Need a script that manipulates a fixed length file that will compare 2 fields in that file and if they are equal write that line to a new file.
i.e. If fields 87-93 = fields 119-125, then write the entire line to a new file. Do this for every line in the file. After we get only the fields... (1 Reply)
I was trying to use the AIX 6.1 sort command to sort fixed-length data records, sorting by specific columns only. It took some time to figure out how to get it to work, so I wanted to share the solution. The sort man page wasn't much help, because it talks about field delimeters (default space... (1 Reply)
Hi,
I am in a situation to print the message on a column, where the each line starting position should be same.
For example code:
HOSTNAME1="1.2.3.4.5.6.7"
TARGET_DIR="/tmp"
echo "HOSTNAME1:" "$HOSTNAME1" | awk -v var="Everyone" '{len=55-length;printf("%s%*s\n",$0,len,var)}'
echo... (4 Replies)
Hi,
I need to split a fixed length file of 160 characters based on value of a column. Example:
ABC 456780001 DGDG SDFSF
BCD 444440002 SSSS TTTTT
ABC 777750003 HHHH UUUUU
THH 888880001 FFFF LLLLLL
HHH 999990002 GGGG OOOOO
I need to split this file on basis of column from... (7 Replies)
Discussion started by: Neelkanth
7 Replies
LEARN ABOUT XFREE86
netlink
NETLINK(3) Linux Programmer's Manual NETLINK(3)NAME
netlink - Netlink macros
SYNOPSIS
#include <asm/types.h>
#include <linux/netlink.h>
int NLMSG_ALIGN(size_t len);
int NLMSG_LENGTH(size_t len);
int NLMSG_SPACE(size_t len);
void *NLMSG_DATA(struct nlmsghdr *nlh);
struct nlmsghdr *NLMSG_NEXT(struct nlmsghdr *nlh, int len);
int NLMSG_OK(struct nlmsghdr *nlh, int len);
int NLMSG_PAYLOAD(struct nlmsghdr *nlh, int len);
DESCRIPTION
<linux/netlink.h> defines several standard macros to access or create a netlink datagram. They are similar in spirit to the macros defined
in cmsg(3) for auxiliary data. The buffer passed to and from a netlink socket should be accessed using only these macros.
NLMSG_ALIGN()
Round the length of a netlink message up to align it properly.
NLMSG_LENGTH()
Given the payload length, len, this macro returns the aligned length to store in the nlmsg_len field of the nlmsghdr.
NLMSG_SPACE()
Return the number of bytes that a netlink message with payload of len would occupy.
NLMSG_DATA()
Return a pointer to the payload associated with the passed nlmsghdr.
NLMSG_NEXT()
Get the next nlmsghdr in a multipart message. The caller must check if the current nlmsghdr didn't have the NLMSG_DONE set--this
function doesn't return NULL on end. The len argument is an lvalue containing the remaining length of the message buffer. This
macro decrements it by the length of the message header.
NLMSG_OK()
Return true if the netlink message is not truncated and is in a form suitable for parsing.
NLMSG_PAYLOAD()
Return the length of the payload associated with the nlmsghdr.
CONFORMING TO
These macros are nonstandard Linux extensions.
NOTES
It is often better to use netlink via libnetlink than via the low-level kernel interface.
SEE ALSO libnetlink(3), netlink(7)COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
GNU 2014-03-20 NETLINK(3)