03-03-2009
Using perl grep and awk
I have a script to get server information i wrote in perl because i would like to learn it (and I use it for work). It works great, however i would like to know if there is a good way to reduce the following line.
Quote:
$model = (`dmidecode | grep "Product Name" | awk -F ":" '{print \$2}'`);
Sean
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi All,
Can someone please help me write a script for the following requirement in awk, grep, sed or perl.
Buuuu xxx bbb
Kmmmm rrr ssss uuuu
Kwwww zzzz ccc
Roooowwww eeee
Bxxxx jjjj dddd
Kuuuu eeeee nnnn
Rpppp cccc vvvv cccc
Rhhhhhhyyyy tttt
Lhhhh rrrrrssssss
Bffff mmmm iiiii
Ktttt... (5 Replies)
Discussion started by: kumarn
5 Replies
2. Shell Programming and Scripting
Hi Guys,
I need to set the value of $7 to zero in case $7 is NULL. I've tried the below command but doesn't work. Any ideas. thanks guys.
MEM=`ps v $PPID| grep -i db2 | grep -v grep| awk '{ if ( $7 ~ " " ) { print 0 } else { print $7}}' `
Harby. (4 Replies)
Discussion started by: hariza
4 Replies
3. Shell Programming and Scripting
I'm using perl to do a grep of each line in a vendor file and find its occurrences in a specific directory. Any values found is saved in @dir.
.....(file opened, etc.)
....
while ($line=<FILE>){
@dir = `grep $line * `;
}
It's the specific usage of the system grep that I'm having... (7 Replies)
Discussion started by: gavineq
7 Replies
4. Shell Programming and Scripting
OK here's the situation:
I have got these lines which I have got to parse.
If the line contains a particular string and any element from a previously defined array I need to take that particular line and do some further processing.
if ((grep(/$_/,$1)) && (grep($pattern,@myarr)))
{
#Do... (2 Replies)
Discussion started by: King Nothing
2 Replies
5. Shell Programming and Scripting
Hello,
I trying to extract text that is surrounded by xml-tags. I tried this
cat tst.xml | egrep "<SERVER>.*</SERVER>" |sed -e "s/<SERVER>\(.*\)<\/SERVER>/\1/"|tr "|" " "
which works perfect, if the start-tag and the end-tag are in the same line, e.g.:
<tag1>Hello Linux-Users</tag1>
... (5 Replies)
Discussion started by: Sebi0815
5 Replies
6. Shell Programming and Scripting
Hello
I want to grep a line from a file saved in some directory.
Can anyone please correct the code below:
#!/usr/bin/perl -w
$file = "/home/output.txt"
$grep_line = "closing zip for topic";
`grep $grep_line* $file`; (1 Reply)
Discussion started by: sureshcisco
1 Replies
7. Shell Programming and Scripting
Hi All i have this script that uses glob to look in /var/log/messages.*
my @messagefiles = glob "/var/log/messages.*";
and the code that uses it is this
grep { /NVRM: Xid/ } @messages)
but this spits out this
/var/log/messages-20111030:Oct 25 13:43:04 brent kernel: NVRM:... (10 Replies)
Discussion started by: ab52
10 Replies
8. Shell Programming and Scripting
Hi dear users,
I need to compare numeric columns in two files. These files have the following structure.
K.txt (4 columns)
A001 chr21 9805831 9846011
A002 chr21 9806202 9846263
A003 chr21 9887188 9988593
A003 chr21 9887188 ... (2 Replies)
Discussion started by: jcvivar
2 Replies
9. Shell Programming and Scripting
I have an input file
12.4 1.72849432773174e+01 -7.74784188610632e+01
12.5 9.59432114416327e-01 -7.87018212757537e+01
15.6 5.20139995965960e-01 -5.61612429666624e+01
29.3 3.76696387248366e+00 -7.42896194101892e+01
32.1 1.86899877018077e+01 -7.56508762501408e+01
35 6.98857157014640e+00... (2 Replies)
Discussion started by: chrisjorg
2 Replies
10. UNIX for Dummies Questions & Answers
Hi,
I have a number of files containing the information below.
"""""
Fundallinfo
6.3950 14.9715 14.0482
"""""
I would like to grep for Fundallinfo and use it to read the next line? I ideally would like to read the three numbers that follow in the next line and... (2 Replies)
Discussion started by: Paul Moghadam
2 Replies
LEARN ABOUT DEBIAN
edac-ctl
EDAC-CTL(8) EDAC admin utility EDAC-CTL(8)
NAME
edac-ctl - EDAC admin utility
SYNOPSIS
edac-ctl [OPTION]...
DESCRIPTION
The edac-ctl program is a perl(1) script which performs some useful administration tasks for EDAC (Error Detection and Correction) drivers.
OPTIONS
--help Display a brief usage message.
--mainboard
Print mainboard vendor and model for this hardware, if available. The method used by edac-ctl to obtain the mainboard vendor and
model information for the current system is described below in the MAINBOARD CONFIGURATION section.
--status
Print the status of EDAC drivers (loaded or unloaded).
--register-labels
Register motherboard DIMM labels into EDAC driver sysfs files. This option uses the detected mainboard manufacturer and model num-
ber in combination with a "labels database" found in any of the files under /etc/edac/labels.d/* or in the labels.db file at
/etc/edac/labels.db. An entry for the current hardware must exist in the labels database for this option to do anything.
--print-labels
Display the configured labels for the current hardware, as well as the current labels registered with EDAC.
--labeldb=DB
Specify an alternate location for the labels database.
MAINBOARD CONFIGURATION
The edac-ctl script uses the following method to determine the current system's mainboard vendor and model information:
1. If the config file /etc/edac/mainboard exists, then it is parsed by edac-ctl. The mainboard config file has the following simple syn-
tax:
vendor = <mainboard vendor string>
model = <mainboard model string>
script = <script to gather mainboard information>
Where anything after a '#' character on a line is considered a comment. If the keyword script is specified, then that script or exe-
cutable is run by edac-ctl to gather the mainboard vendor and model information. The script should write the resulting information on
stdout in the same format as the mainboard config file.
2. If no mainboard config file exists, then edac-ctl will attempt to read DMI information from the sysfs files
/sys/class/dmi/id/board_vendor
/sys/class/dmi/id/board_name
3. If the sysfs files above do not exist, then edac-ctl will fall back to parsing output of the dmidecode(8) utility. Use of this utility
will most often require that edac-ctl be run as root.
SEE ALSO
edac(3), edac-util(1)
edac-utils-0.18-1 2011-11-09 EDAC-CTL(8)