General :: Create Cron Tab When DSL Line Down Set Automatically Restart The Network Service While DSL Line Up?
Oct 7, 2010How to create cron tab when DSL line down set automatically restart the network service while DSL line up?
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CentOS 5 Hardware :: Service Network Stop Automatically - Restart In Cron Tab
Jan 23, 2011I am using
# uname -rmi
2.6.18-194.26.1.el5PAE i686 i386
# cat /etc/*release*
cat: /etc/lsb-release.d: Is a directory
Red Hat Enterprise Linux Server release 5 (Tikanga)
CentOS release 5.5 (Final)
I have noticed that after few days of ideal system it will stop its network interface. To resolve this I have to login to the machine it self and then issue
# service network start
Is this a feature. If this is not a feature then what is this. As an workaround I am thinking of adding service network restart in cron tab for everyday in night when I am not using it.
General :: Cron And Oracle Service Stopped Unexpectedly - Cannot Restart
May 5, 2010I am running Fedora 11 with an Oracle 11g database installed. I came to check on it and found out that the oracle service had stopped. I also have a script that gets run by cron every minute. I noticed that the last entry in the log /var/log/cron was March 24 at 4:26. Which was really close (not exactly to the second but within a few minutes) of the last log entry in the database translator logs (the database was processing data and it outputs a log).
I rebooted the machine and cron started running again, but I can't get the oracle service to start again. Normally it runs at startup, but if I need to run it or check it, I use:
Code: /sbin/service oracle restart
Is there another log that I could look at to see what would be the cause of the stoppage? How to get the oracle service started again?
Programming :: Create File Listing In C++ That Will Generate Line Number On Every Line Of Code
Apr 11, 2010I have a project due for my Intro to C++ class and we are suppose to generate a file listing that will take an input of a C++ source code with .cpp extension and make a copy of it with a .lst extention that will have a line number preceding each and every line.
View 12 Replies View RelatedGeneral :: Difference Between Cron And Command Line Environment?
Feb 18, 2010so i have a few shell scripts that execute wonderfully when i type them at the command line but they fail when they are run from cron.
for example, if i run a script from command line that contains
Code:
shopt -s nullglob
to prevent problems with for f in *.mp4 type loops, it works fine from terminal command line but when called from cron, it gives an error->
Code:
/home/centralsqwall/Videos/videochecker.sh: 91: shopt: not found
a couple other random errors as well...
so there is some difference in the shell from cron and the terminal?
i'm running ubuntu 9.10, #!/bin/bash
what are the commands i should be using to echo my environment or simulate cron environment from the terminal?
OpenSUSE :: Restart Automatically A Service?
May 27, 2010I have a box Suse 11.1 with a service that (I dont know why) every day stop at the same time. Im finding why it come to a halt but in the meantime I would like restart it automatically.As root I insert in crontab the line:25 16 * * * /etc/init.d/service startBut it don works
If I launch manually /etc/init.d/service start (or stop) it works
Programming :: Copy And Replacing Specific Line From File1 To File2 Line By Line
Mar 22, 2011I have two files, file1.traj and file2.traj. Both these files contain identical data and the data are arranged in same format in them. The first line of both files is a comment.
At line 7843 of both files there is a cartesian coordinate X, Y and Z ( three digits ). And at line 15685 there is another three digits. The number of lines in between two cartesian coordinates are 7841. And there are few hundreds of thousands of lines in a file.
What I need to do is copy the X Y Z coordinate (three digits) from file1.traj at line 7843 and paste into file2.traj at the same line number as in file1.traj. The next line will be 15685 from file1.traj and replace at line 15685 at file2.traj. And I dont want other lines (data) in file2.traj get altered. This sequence shall be going on until the end of the file. Means copy and substitude the selected lines from file1.traj into file2.traj.
I tried to use paste command but I cant do for specified line alone.
Here i showed the data format in the file. I used the line number for clarity purpose.
Code:
CentOS 5 Networking :: How To Create Wireless Network From Command Line With Hidden ESSID
Feb 27, 2011I have a CentOS 5.5 server running currently with a Netgear gigabit ethernet card and for wifi I have a wi-fi card with the chipset: RT2860.Now I have gotten the ethernet card and wi-fi card working but my main question is: How do you bridge the connection between the ethernet card and the wi-fi card to create a wireless network with a hidden ESSID if possible and WPA encryption? (So the server basically acts as a wireless router as well as doing all the other stuff I need to do on it).
View 2 Replies View RelatedProgramming :: Access A File Line By Line, And Check The Length Of Each Line.
Feb 13, 2011I want to access a file, and check the length of every line.After, i want to check and replace all lines with length over 10 characters, with a message.Does anyone have a clue on that?
View 1 Replies View RelatedUbuntu :: How To Restart Network Adapter (not Service) Without Restart?
Mar 13, 2010I have a suspend problem in my laptop. Sometimes, when resuming from suspend, the network adapter is down (that is, the network does not work and the light of the network adapter is off). Restarting the network service doesn't work, because I think that the system forgot about the hardware, and probably the driver should be reloaded.Does anyone knows how to do that?(ps. /etc/init.d/networking restart does not work, because the hardware driver is not being recognized anymore).
View 5 Replies View RelatedGeneral :: Send Gpg Encrypted Mail Automatically From The Command Line?
Sep 14, 2010How can I send gpg encrypted mail automatically from the linux command line?
I'm a little stumped on this one, I've tried using mutt but it doesn't encrypt mail unless it's used interactively.
Does anyone know if you can use the build in mail command to do this some how?
Programming :: Compare Two Files Line By Line And Print The Line Which Is Same?
May 30, 2011I am trying to write a program in C which compares two files and prints the line that is equal.
Here file1.txt has
and file2.txt has
Note: file2.txt consist of only a single string where as file2.txt has multiple lines. Actually im comparing two files with md5sum values.
Here is the code but it compares only first line of files..but it should compare the whole file1..and sorry iam a beginner in C can any1 sujest some modification to this code so that..it can compare file2 with entire file1
Quote:
Programming :: Insert Line Using Sed Or Awk At Line Using Line Number As Variable
Jul 25, 2011I want to insert a line at a particular line number using sed or awk. where line number is not fixed and is in form of variable.
I want to use variable in sed or awk command.I tried something like below, but no luck.
General :: Getting The Line Of String From Previous Pipe Output By Line Number?
Feb 8, 2010After running the following command, I get:
[root@yukiko /]# find / -iname .bashrc
/home/clamav/.bashrc
/home/vpopmail/.bashrc
/etc/skel/.bashrc
/root/.bashrc
But I would like to have a command that prints a specific line by supplying the command with the line number, for example:
[root@yukiko /]# find / -iname .bashrc | getline(2)
/home/vpopmail/.bashrc
Is there such a command on CentOS?
General :: Script To Count # Of Chars Per Line - If Line Meets Certain Criteria - And Get Avg #?
Sep 11, 2009I have several files with many lines something like this:
I'm trying to write a script that will count the number of characters per line that doesn't contain a ">" symbol and give me an average of those values. I have most of the script together but I can't figure out how to connect some of the steps.
Code:
General :: Scripting - Feed An Input File Into An If Statement Line-by-line
Dec 23, 2009I am trying to write a script that takes an input file ($FileName) and an intermediate file ($FileName.info) and removes lines from $FileName if the value in $2 of $FileName.info is <75.
I can't figure out how to feed only one line of the .info file to the if statement at a time so that it will perceive it as an integer instead of a list.
The error I am getting now is ./script.sh: line 6: [: : integer expression expected
Sample input $FileName
Code:
Code:
Code:
Script so far:
Code:
General :: Parse A File And Print Each Line That Ends With Matching Pattern (if The Next Line Is Blank)
Aug 2, 2010I've written a script to parse a file and print each line that ends with matching pattern, if the next line is blank. The pattern lines are the result of md5sum $i|sed 's/path///g' so that only md5 and filename appear. Here's what I'm using.
Quote:
for fline in `sed -n '/.*.ext$/p' file1`
do
if [ "`sed -n -e '/'"$fline"'/ {n; p;}' file1`" == "" ]
then
echo ""$fline" has no info" >>file2
fi
done
[Code]....
General :: Command Line Way To View A Line Of A File With Context?
Feb 24, 2011I'd like show a certain line or lines of a file with context, kind of like a unified diff, on the command line in Linux:
$ (something) -l 154 stuff.py
150: def foo(bar):
151: """
[code]....
General :: Printing Command Line History Without Line Numbers?
Aug 22, 2011How can I print Linux command line history without including the line numbers? I want to send it all to a text file like this:history >> history.txt
View 1 Replies View RelatedGeneral :: Sort By Line Size (number Of Characters In A Line)?
Jan 8, 2010I want to sort a number of lines based on their size:
data:
-------
12345678
87654321
1234
[code]....
Should output as:
-----------------
1
2
12
21
[code]....
But i'm gettings this with sort
----------------
1
12
123
1234
[code]....
Can we sort the above "data" text, based on "number of characters" instead of "character order"?
General :: Appending To The Current Line In A File Instead Of Creating A New Line?
Apr 1, 2011I am combining data from a couple different input files and creating an output file in a specific format. I notice that if I use the >> operator, information gets appended to a new line in my output file. This is useful, but if I'd like to append onto the CURRENT line, is there an easy way to do this? I've been googling around and see lots of complicated answers, nothing that suggests to me an easy way to do this. For example, if my output file looks like this:
b1a:] cat test
hello my name is
b1a:]
and I'd simply like to append "Bob", how can I do it? If I use
b1a:] echo Bob >> test
b1a:] cat test
b1a:] hello my name is
Bob
b1a:]
So what I would prefer is some command that would create the result:
hello my name is Bob
General :: Match And Combine 2 Text Files Line By Line
Mar 21, 2011This solution works but is slow with large files. I am looking for a faster solution.
The 2 files contain filenames, one of them has associated data I want to append to the other file's matching filenames
file1:
file2:
I append file2 by matching the unique_filenames and appending them with the tag data and some formatting
appended file2:
Here is the SLOW code
while read inputline.
General :: Sed To Display The Pattern String - The Line Above It And The First Line Of That Para
Mar 30, 2011I need to grep for a particular string and if found need to display the line containing that string, the line above that and also the first line of that paragraph.
Can this be done via sed.
Eg, My Paragraphs
OA connectA
Enclosure:
Interconnect Module #6 Status:
Here, if I grep for Critical, it should display the following
Similarly if I grep for Degraded, it should display
General :: Script Which Read Line By Line /passwd Using While?
May 13, 2010I have to do several scripts and I have no idea of how to do this one: Make a script that read line by line the passwd file and prints in console.Hope you understand couse my english isso bad as you can see.Our teacher told us something like this:#!/bin/bashwhile read line doecho $lineadone < dispositiveexit
View 9 Replies View RelatedGeneral :: Grep Lines Containing A Certain String PLUS The Line Following That Line?
Sep 1, 2009I have a dataset (see example below) that I would like to go through and copy all lines containing a certain string ("LGIG") plus the line immediately following that line to a new file. I have no problem grepping lines containing the string LGIG but I'm lost how to translate that to line number and shift up one line number for each instance of that string.
Example input file:
[code].....
General :: Replace Line With Another Line In Shell Script?
Feb 26, 2010I have the file abc.txt
cat abc.txt This is a test file Nothing is new in this world
I want to replace "This is a test file" to "Text is replaced"
Code:
FindString='This is a test file'
ReplaceString='Text is replaced'
Findarray=(`echo $FindString | tr ' ' ' '`)
[Code]....
But this is not effective. how to replace entire line either using sed or awk or any other utility.
General :: How To Delete A Line At Specific Line Number
Jun 15, 2010I m writing a script to delete a line at particular location.
But i m unable to use variable for specifying line number.
For example.
Code:
works fine and deletes 7th line from my file
But
Code:
gives following error.
Code:
General :: Xterm - Go Onto Next Line When End Of Current Line Is Reached?
Jan 7, 2010I am using xterm and sometimes when typing long commands into a small window, the command extends beyond the end of the line. On my old uni setup, when this happens, the cursor moves to the line below and you can see what text you have typed above however on my slack 13 setup, it overwrites the current line so you cannot see what you have typed! How can I set xterm to move onto the next line instead of overtyping?
View 14 Replies View RelatedRed Hat / Fedora :: Different Output Of FTP Between Cron And Command Line
May 31, 2010I have the following shell:
export PATH=/u01/app/oracle/product/10.2.0/db_2/bin:/usr/sbin:/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin
ftp -u -v -n -i > /bk01/exports/FTP_OUTPUT.LOG <<EOF
open 197.0.0.78
user orabackup orabackup
cd /media/disco/BK_Oracle
bin
put FILE00001.LOG
put FILE00001.DMP
quit
EOF
Executing the shell from command line, the output is:
Connected to 197.0.0.78.
220 Bienvenido al servicio FTP del servidor backup.
530 Please login with USER and PASS.
530 Please login with USER and PASS.
331 Please specify the password.
230 Login successful.
250 Directory successfully changed.
200 Switching to Binary mode.
local: EXPO_APOT10G_20100531.LOG remote: EXPO_APOT10G_20100531.LOG 227 Entering Passive Mode (197,0,0,78,200,162) 150 Ok to send data. 226 File receive OK. 127498 bytes sent in 0.0022 seconds (5.7e+04 Kbytes/s)
local: EXPO_APOT10G_20100531.DMP remote: EXPO_APOT10G_20100531.DMP
227 Entering Passive Mode (197,0,0,78,175,141) 150 Ok to send data. 226 File receive OK. 458190848 bytes sent in 6.1 seconds (7.3e+04 Kbytes/s)
221 Goodbye.
Executing the shell from cron, the output is:
Connected to 197.0.0.78 (197.0.0.7.
220 Bienvenido al servicio FTP del servidor backup.
331 Please specify the password.
230 Login successful.
250 Directory successfully changed.
200 Switching to Binary mode.
local: EXPO_APOT10G_20100531.LOG remote: EXPO_APOT10G_20100531.LOG
local: EXPO_APOT10G_20100531.DMP remote: EXPO_APOT10G_20100531.DMP
221 Goodbye.
Why from cron the output no show the statistics in red ...?
General :: Command Line - How To Create Multipart Rar File
Sep 4, 2010How can I create multipart rar file in Linux using the official console rar client?RAR 3.90 Copyright (c) 1993-2009 Alexander Roshal 16 Aug 2009Shareware version Type RAR -? for helpI want a multipart rar with each part size being 150 MB.
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