Is there any way i can pass two / three values to grep. Basically i want to list the lines in the file with three different values. Currently I'm using three grep to get my work done.
EG: more Filename | grep text1 | grep text2 | grep text3
BRs
I have a huge binary log file. There are lets say 4 id's that I want to find in a log file. I know that those 4 id's will be present in the log file and I also know in what order they will be present. I want to find 1st id from the log then 2nd id and then third id and so on..
Simple/inefficient solution is: Loop through the id's and then grep in the log file. Problem with this solution is for each id grep will search from the beginning of the file.
Better/efficient solution would be: Sine I know the order in which id's will be present in the log file. Loop through id's, grep 1st id and then move on to grep 2nd id and so on...this way I can grep all id's in one pass. Is this solution possible ?
I have 500000 + values to find in log files and I have to find efficient solution for it.
I would like to grep all values other than encrypted password from /etc/shadow fileFor example,each line consists of 8 fields separated with :/The only thing that I want not to print out is the contents between first : and second : (encrypted password)
View 7 Replies View RelatedI'm modifying a working udev rule which runs a script that mounts a USB HDD and synchronises files to it.The USB HDDs have been troublesome, losing many files and even losing file systems a couple of timesTo investigate,I want to log the USB HDD product name and serial number so would like to pass ATTRS{product} and ATTRS{serial} values to the script.This may not be possible; I cannot see anything about how to do it in either the udev man page nor Daniel Drake's "Writing udev rules" Version 0.74 but it seems such an obvious thing to want to do, I'm wondering if I've overlooked something.
View 8 Replies View RelatedMy script.
This is may script:
Code:
Problem: Output file doest not exclude the values in grep -av
I need to kind of grep within grep. My input file would be something like:
[Code]....
and I need to find the first occurrence of hello before MY PATTERN (hello 9008 in this case), so the output should be:
[Code]....
how to retrive every portion separately from following file name? DSA4020_frontcover_20346501_2011-05.doc
I want to retrieve informations as below;
name = DSA4020
type = frontcover
id = 20346501
date = 2011-05
is it possible to do with sed??
Code:
# ps
22355 pts/3 00:00:00 bash
#
# ps -l 22355
F S UID PID PPID C PRI NI ADDR SZ WCHAN TTY TIME CMD
0 S 519 22355 22354 0 75 0 - 1338 wait4 pts/3 0:00 -bash
#
# ps -o pid,priority,command 22355
PID PRI COMMAND
22355 15 -bash
#
Why are the priority values of the process different? What is the difference? Is the value 15 the "nice" priority? Then, what is the value 75? Please, explain the difference of each result.
I couldn't really decide where this should be posted, but this is the most general of the forums. Anyway, I've been playing a wargame on intruded.net in which some of the challenges require me to pass hexvalues into the programs as character values. All is well with this, and usually I would use the shell to pass it in, but most of these programs use the gets() method to get my input.
Here comes the problem... The other day I was using my desktop which runs slackware 64 13.1 to do these challenges. My method was to use "echo -e 'xefxbexadxde'" to print them to the shell's standard output and then highlight and copy the resulting values to paste to the program. This works just fine on slackware, but when I repeated the same processes on Ubuntu 64 10.04 (which runs on my laptop) the 'xde' always turns up to be 'x00'. Then I tried some other levels with similar responses, not all the hex values convert to the correct ASCII characters.
I have the following values in my log file:
...
2010-05-13 11:00:00 k_TRANSFER OK (11)
2010-05-13 11:30:01 m_TRANSFER OK (21)
2010-05-13 12:00:00 k_TRANSFER OK (12)
2010-05-13 12:30:00 m_TRANSFER OK (32)
2010-05-13 13:00:00 m_TRANSFER OK (13)
...
I want to replace every number with it's decrement. For example, the above values should be:
...
2010-05-13 11:00:00 k_TRANSFER OK (10)
2010-05-13 11:30:01 m_TRANSFER OK (20)
2010-05-13 12:00:00 k_TRANSFER OK (11)
2010-05-13 12:30:00 m_TRANSFER OK (31)
2010-05-13 13:00:00 m_TRANSFER OK (12)
I need to set ulimit values according to
I used
Code:
ulimit -c unlimited
ulimit -s unlimited
ulimit -u unlimited
But after I log again to my session values are set to default. Now can I set this values so they don't change after log out of after reboot?
My cpu is set via Gnome-power manager to automatically speedstep under demand....
the thing is i have a few nice level 19 processes running most the time that eat up all the idle time, this forces my clock speed up and as such makes the fan noisy and uses more power...
basically what i would like to do is to ignore process load with a nice over a certian level when determining weather to speed step.
I need a list of shell variables without values and without finctions. Can't find an option for set or typeset to print values only
View 4 Replies View RelatedAnyone know what means the values of Load Average?
load average: 0.00, 0.00, 0.04
load average: 17.50, 13.44, 12.70
Sometime is low and many times is high.
This is a Fix message - it is a type of protocol for transmitting financial dataeach number followed by a = sign is a tag - each tag means something. some tage are moe important than other.
8=FIX.4.1^9=0235^35=D^34=10^43=N^49=VENDOR^50=CUSTOME^ 56=BROKER^52=19980930- 09:25:58^1=XQCCFUND^11=10^21=1^55=EK^48=277461109^22= 1^54=1^38=10000^40=2^44=76.750000^59=0^10=165 18
[code]....
I'm executing the below bash script, but when the m variable doesn't get any value it becomes empty. I don't want that.
Code:
for i in "$@"
do
m=$(grep TOTAL_MAPS $i | awk '{ print $2}');
totalmaps+="<string>"$m"</string>"
[Code]....
In my file there are 2 fields separated by space.Sample content of file are as follows:56060 154242 053030 0Now i want to check second field of the file and if all values in second field are 0(zero) and send mail containing all contents of the file
View 3 Replies View RelatedWhat is the default kernel paramtre valus for linux RHEL Machine?
View 5 Replies View RelatedI have been asked to write a program to extract the width and height values from .gif, .jpg and .png files. For .gif I was able to find the values in the header records, but it is not so straight forward for the other two formats.
Does anyone know if there is a Linux utility that will do this for me?
I want to read values from a file...these are basically one word values, that is to say that the text file I want to read from contains lines of word length 1, as in:
word1
word2
word3
[code]...
I downloaded, configured and installed ImageMagic-6.7 without too much trouble.
I'm trying to install the perl module Image::Magick, and using MCPAN just errors out big time.
I read in the docs for installing ImageMagic, that I need to edit the Makefile.PL in the PerlMagick directory before I can do a make / make install.
I'm supposed to change the LIBS and INC, but I have no idea what I'm supposed to change them to? Do I just add to what's there? Where do I find the values to add/change to?
I'm doing some bash-scripting and want to be able to print some text (just plain text) files into the new bash-scripts, created within a loop. Here's a short example of what I do:
Code:
# main bash script #
#!/bin/bash
##Filename
variable1=10
for ((j=0;j<=40;j+=1))
do
## Create another bash-script
echo "#!/bin/bash" >> bash_script_$j
... some stuff...
cat file1.txt >> bash_script_$j
... some more stuff...
done
where the text file (file1.txt) I want to print in the the new bash script looks something like:
Code:
# file1.txt #
...some stuff...
logsave log some_program($variable1)
mv output_$j folder_$j/
... some more stuff...
I.e, the text file contains variables such as "$j", "$variable1" etc that are undefined. Doing the above works for creating new bash scripts (bash_script_1 - bash_script_40) but the variables are not determined. I would like, if possible, to somehow print the text in file1.txt into the new bash-scripts with the variables determined, i.e:
Code:
# bash_script_1 #
...some stuff...
logsave log some_program(10)
mv output_1 folder_1/
... some more stuff...
The text files I read are quite extensive so I would really prefer not having to paste them into the FOR-loop directly.
I have a lot of files with thousands of rows and usually two columns of data. Column 1 is a coordinate, column 2 is a score. I want to delete rows that have a value in column 2 over, in this case, 50.
For example, here's a clip from a file:
2999898 39
2999899 40.9
2999900 42.7
2999901 44.7
2999902 46.7
2999903 48.9
2999904 51.1
2999905 53.3
2999906 55.7
I want the output to be this:
2999904 51.1
2999905 53.3
2999906 55.7
I know how to use sed for very basic things like deleting rows or ranges of rows but I can't figure out this ostensibly easy command.
Specifically, I'd love to know what the valid values of:
And, where I can find this information? I've always wondered if it was documented somewhere, or if there was an interface into the kernel to query for it.
passing a wild card array to cp, I know it can be done but cant figure it out, ive got 3 files all start with the word somefile but have 3 different extensions
somefile.conf
somefile.dat
somefile.py
there in a folder with a bunch of other files and I just want to copy them to a different location. I remember is being something like cp somefile.[py conf dat] /somewhere but this isn't working Ive searched the net and can't find it with the keywords i'm using.
I've got a sticky little problem with a bash script. Please consider the following code:
Code:
#! /bin/bash
processArgs() {
echo "Count = $#"
while [[ $# -ne 0 ]]; do
echo $1
shift
done
}
processArgs $* If I call this script with Code: ./script first second third it'll print each of the argument on a new line - exactly what I would expect. However if I call it with
Code: ./script "Single Argument" "Second-Argument" it splits the first argument in two using the space as a delimitor. The problem appears to be the call to processArgs, where $* doesn't honour the quotes around the variables sent to the script.
I want to pass a variable from one script to another, I have a feeling it's extremely simple.
I looked at exporting, but apparently that clogs up the shell, so I don't want to go down that route. Any suggestions?
Is it complete unsafe to have a ssh key with out pass phrase ?
View 4 Replies View RelatedI'm having trouble trying to generate an SSL server key WITHOUT a pass phrase.
Here's what I did. Wrong, obviously.
Code:
I am trying to parse a line from a file and place the values into separate variables:
input.txt:
Code:
CreateVegaFeed-20110928-before-skip-start
this is the code i have done so far:
Code:
$input_file="input.txt"
INPUT_FILE=`cat $input_file`
for i in $INPUT_FILE
[Code].....