In one of the Unix Programming FAQ's they have the following headers in the program to catch SIGCHLD
#include <sys/types.h> /* include this before any other sys headers */
#include <sys/wait.h> /* header for waitpid() and various macros */
#include <signal.h> /* header for signal... (5 Replies)
I have the following script:
(echo -n `curl http://www.example.com/scores.txt | grep mylocation`; date +%Y%m%d%H%M%S) >> myscores.txt
This script works fine, except that it places the timestamp at the end of the file myscores.txt. How do add the timestamp as the first column and then a tab and... (4 Replies)
Hi,
I'm trying to strip all lines between two headers in a file:
### BEGIN ###
Text to remove, contains all kinds of characters
...
Antispyware-Downloadserver.com (Germany)=http://www.antispyware-downloadserver.c
om/updates/
Antispyware-Downloadserver.com #2... (3 Replies)
Hi ,
I have a typical situation. I have 4 files and with different headers (number of headers is varible ).
I need to make such a merged file which will have headers combined from all files (comman coluns should appear once only).
For example -
File 1
H1|H2|H3|H4
11|12|13|14
21|22|23|23... (1 Reply)
Hi,
I found the following awk script to transpose multiple (3) columns to multiple rows:
#===
BEGIN {FS=","}
{
for (i=1;i<=NF;i++)
{
arr=$i;
if(nf<= NF)
nf=NF;
}
nr=NR
}
END {
for(i=1;i<=nf;i++)
{ (8 Replies)
Hi everyone,
Please some help over here. (I´m using cygwing)
I have files with 40 columns and 2000 lines in average. I´m trying to change the order position as follow.
Original columns position:... (3 Replies)
Hi friends,
I have data in tab separated file with headers like this :
*sml1 *sml3 *smln7 smfk9 smllf56...
Which shell command I should use if i want to extract entire columns that have header names beginning with "*" ? i want to copy these columns into another file.
Thanks, (14 Replies)
I am trying to reorder columns based on a value in a field in the attached file. Thank you :).
If $11 is not equal to "unknown", then in a new text file $4, $11, $7, $13
For example, row 24 $11 is not unknown
A_16_P39089234, chr10:76765556-76765615, KAT6B, 0.9337 (5 Replies)
Hi. Unix rookie here. Been looking for a few days for reference documents on how BSD UNIX lays the logical file format onto a disk. Goal is to view/edit with hex editor for data repair. Lots of docs are available for how to use Unix commands (like xxd), but I want to learn the map of how Unix... (4 Replies)
The below awk verifies the count and order of each text file in the directory. The script does execute and produce output, however the order of the headers are not compared to key. The portion in bold is supposed to do that. If the order of the headers in each text file is the same as key, then... (0 Replies)
Discussion started by: cmccabe
0 Replies
LEARN ABOUT DEBIAN
arp2ethers
ARP2ETHERS(8) System Manager's Manual ARP2ETHERS(8)NAME
arp2ethers - convert arpwatch address database to ethers file format
SYNOPSIS
arp2ethers [ arp.dat file ]
DESCRIPTION
arp2ethers converts the file /var/lib/arpwatch/arp.dat (or the file specified on the command line) into ethers(5) format on stdout. Usu-
ally arp.dat is an ethernet/ip database file generated by arpwatch(8). The arpwatch daemon in Debian will create different arp.dat depend-
ing on its configuration. All of them will be available at /var/lib/arpwatch/.
FILES
/var/lib/arpwatch - default directory for arp.dat
arp.dat - ethernet/ip address database
SEE ALSO arpwatch(8), ethers(5), rarp(8), arp(8),
BUGS
Please send bug reports to arpwatch@ee.lbl.gov.
AUTHORS
Original version by Craig Leres of the Lawrence Berkeley National Laboratory Network Research Group, University of California, Berkeley,
CA.
Modified for the Debian Project by Peter Kelemen, with additions from Erik Warmelink.
The current version is available via anonymous ftp:
ftp://ftp.ee.lbl.gov/arpwatch.tar.gz
This manual page was contributed by Hugo Graumann.
ARP2ETHERS(8)