Programming :: Bash Script To Restart A Dead Script?
Jul 22, 2011
I have a social web application built with php and I have a php script which should run in the back ground and not stop (although it does from time to time).I am wanting to write a bash script which will fire every minute to check if my php scrip is running, and if its not running then I need it to start it again.I have the following but it doesn't work, it just keeps restarting it.
Code:
TEST = `pidof -x php /var/www/html/app/index.php | wc -w`
if [ $( pidof -x php /var/www/html/app/index.php | wc -w ) -eq 0 ];
[code]...
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Apr 4, 2009
ia have this script
#!/bin/bash
if [ -e /tmp/mysql.pipe ]; then
[code]...
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Nov 22, 2010
I have a problem with the openoffice 3.1, install it and I worked fine in Fedora 14, but I restart the system and no longer works. nothing happens with any file.
to download from the official site and install it manually.
I can not fix
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Dec 23, 2008
If one re-boots an openSUSE computer with open Firefox, the Firefox restarts when the system restarts. Actually, every application that was open, restarts.However, sometimes, Firefox does not restart.When I perform ps in bash, I see a few Firefox processes do run, but there is no graphical evidence.If I run Firefox explicitly - stll, no graphical evidence.If, however, I kill all Firefox processes, it can now be started normally.Does someone know a reason for such peculiar behavior ?
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Feb 4, 2011
I would like to know how do I print the line # in a script. My requirement is, I have a script which is about ~5000 lines long. If there are any errors happen I just exit. And I would like to add the line # of the script where the error happened.
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Jan 24, 2010
simple bash code:
Code:
#!/bin/bash
trap "echo 'you got me'" SIGINT SIGTERM # to trap ctrl+c
echo "Press ctrl+c during 5 sec loop"
for ((i=0;i<5;i++)); do
[Code]...
How come code behaves normally and stops when ctrl+c signal is caught and resumes, but after I use at least one timeout read in the code it looks like, if signal is caught again it doesn't pause the execution but skips the loop. If you remove -t (timeout) option from the read, both loops look the same!
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Nov 26, 2008
I have a config file that contains:
my.config:
Code:
Now in my bash script, I want to get the output /home/user instead of $HOME once read. So far, I have managed to get the $HOME variable but I can't get it to echo the variable. All I get is the output $HOME.
Here is my parse_cmd script:
Code:
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Jul 25, 2011
I have written quite a few separate bash & scripts and php scripts that up to now I have run from cron jobs. However I have to estimate how long each takes to run, before running the next and so it probably takes much longer than necessary to run them all. They have to run in order.
Now there are so many I am thinking it would be better to have a master bash script that would run one after the other, but I am not sure how to get the master script to wait before starting to run the next script. Is this possible and is there a command that will make the script wait between bash and php scripts , for them to finish, before running the next?
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Jan 9, 2010
I would like to get the filename (without extension) and the extension separately. The best solution I found so far is:
Let FILE="thefilenameofsomefilesfor_instance.txt"
Code:
NAME=`echo "$FILE" | cut -d'.' -f1`
EXTENSION=`echo "$FILE" | cut -d'.' -f2`
I think it would be better to count the len and remove 3 chars to right to get the extension, but it can be macintosh filenames with have 4 chars for extensions.
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Mar 31, 2011
I need to rename the resulted searched files from a loopI have the following code:
find . -name DOC* | while read i
do
find $i -type f -name '*.txt'
done
basically, I am searching for all txt files inside any folder starting with DOC name.this code is working fine with me.I need to rename those .txt files to .txtOLDOS: Ubuntu 10.4Bash shell
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Apr 23, 2011
I have done some tcp stream multiplexer. I'm using it as independent login proxy (user is once authenticated and then switched to hidden device (cisco)). But I need to reset session (no connection) configuration, because cisco supports xterm, ctr-c, etc... Am I able to do? Just restart negotiation? Using IAC codes?
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May 3, 2011
In gui validation if user enters string in integer requiring field, a dialog box pops out. So on clicking the button i want to stop the program execution and return to the previous jframe(either the same one or newly created object of it).
How can i handle this in java.
I tried calling main(); but it doesn't work.
Also System.exit(0); doensn't work.
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Jan 29, 2011
I am trying to write a bash script that sources another bash script. Essentially, I need a few lines to check to see if a certain variable is set. If not, I set it manually, and then source a scripts with that variable in the path. I wrote a test script to try it, but for some reason the last line does not work. Here is what I wrote:
#!/bin/sh
source ~setupdir/setup.shrc #just a test, this line works
echo ${#SETUP} # prints 0 if setup is not set, which it isn't
if [ ${#SETUP} -eq 0 ]
then
SETUP="~setupdir"
fi
echo $SETUP # prints ~setupdir
[Code]...
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Jun 6, 2009
I'm running CentOS 5.3 64bit and from the get go I've had problems with the Apache serverMore specifically, on what seems to be a random occurance, the apache server stops to respond.The process is still running, but nothing happens with it, and it is not responding.The /var/logs/httpd/error_log is blank for the occurance and only shows an entry after I give it a restartSo I'm a bit confused about what is going on.With that said, I need to make sure the httpd is working one way or another.I don't want to force a restart service every 10 minutes as this seems a bit too much.However, I do want to have the following:run a crond every minute to do:
rm -Rf /root/testarea/*
wget http://ip/work.gif
then check if work.gif exists.
[code]...
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Jun 16, 2010
I have startup scriptsI want to test themI need a script to do the followingstart restart stop for 100 times (or i can set how many cycle)
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Jul 13, 2011
i'm in the process of learing C++. currently i'm creating shell scripts to get things done. i'm just curious how, as a programmer using C++ you would get a similar job done.as an example i have a script that takes the contents of files, pipes it to some sed and awk commands, which is piped to create a new file. that file is then imported into a mysql database.if you were going to do this in C++, would you call the sed/awk programs to modify the file, or can it be done within the program itself? i'm probably jumping the gun here because i've just started learing about pointers so this is above my ability
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Apr 30, 2011
I have just finished the upgrade of the latest version and I'm at the point of my system restating.
My system automatically tried to restart but on the restart I got the 'terminal' view. It stopped when asking for my username (it never normally asks for this before the grub menu) and then password. I didn't get any further than that.
I now have on my screen (still in the terminal view before the grub menu)
"name@name-desktop:...$ "
I'm on my phone now so I don't actually have the symbol for before the dollar sign but your know what it is. The raised S on a 90 degree angle.
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Mar 13, 2010
I 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).
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Feb 27, 2010
i have installed dhcp,there i declared the subnet and network,i used command include "/etc/dhcpd.conf.jutu1"; to start and other files, but it show me this error when i want to restart the DHCP, if you need more information contact me, i have configured this file too jutu1, but it don't let me to restart dhcp from /etc/init.d/dhcpd restart, this show me this message
[Code]..
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Mar 25, 2011
I have beat this enough and don't get what should have been a very simple thing to do. I build a variable;
Code:
CLIST=java,lua,python,php,perl,ruby,tcl
CLIST will be used by another bash script but I need to replace the commas with a space. I
[code]...
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Dec 4, 2010
Creating script that converts hex to dec. But without using bc calculator or other methods that could convert it in one line. I need to make something like this script that converts dec to hex.
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Apr 14, 2011
I have a basic awk script that can read a file named 'server_info' and output to the screen which fax lines are not working. Now I want to make the script execute commands instead of printing to the screen but I am having trouble... This is better explained by my code below:
test.sh Code: #!/usr/bin/awk -f
#
#The name of this script is test.sh
[code]....
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Jul 14, 2011
Distro: Centos 5, PHP 5I have done a bit research on running bash commands from php and there was little success. This is my relevant php script
<?php
echo exec('pwd');
?>
[code]...
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May 2, 2011
I am trying to build a function inside a script.
Code:
#!/bin/sh
#System commands and other configurable.
IPT=/sbin/iptables
IP6T=/sbin/ip6tables
IPST=/usr/sbin/ipset
MODP=/sbin/modprobe
GET=/usr/bin/wget
INT_NET=192.168.1.0/24 .....
I can find lots of tutorials in how to use if, then, else. However, how do I define a variable inside the function?
SEE>>
Code:
for c in $ISO
Also, am I using the 'test' command correctly( -/+ week as valid test)?
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Feb 14, 2011
I'm somewhere between Novice and I have no idea what I'm doing with bash scripts. I'm writing a script to deploy images using partimage on my company's desktops, and while I have just about everything else figured out I have one issue left.Each of our 4 sites that will be using this disc will have a deployment server due to the fact that our sites have dedicated point to point links that our business traffic is conducted on. I need to be able to determine what site I'm at based onubnet and set a variable based on this determination. What I don't know is how to get the IP address in to an if statement, and properly determine subnet. For example:
192.168.1.0/16 - 192.168.7.0/16 need to use DEPLSERV01
192.168.8.0/16 - 192.168.16.0/16 use DEPLSERV02
192.168.17.0/16 - 192.168.24.0/16 use DEPLSERV03
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Dec 27, 2008
I know it's a very silly question but could someone please explain the difference between "/bin/bash" & "/bin/sh" I was under the impression that both are same but following output on my Ubuntu 8.10 is making me raise my eyebrows.
Quote:
parag@station3:~$ ls -l /bin/bash ; ls -l /bin/sh
-rwxr-xr-x 1 root root 725136 2008-05-13 00:18 /bin/bash
lrwxrwxrwx 1 root root 4 2008-12-03 21:42 /bin/sh -> dash
parag@station3:~$
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Apr 9, 2010
i want to run bash script on website.i still have to choose between unix hosting and windows hosting. my web hosting service offer Own Cgi - Bin PHP,ASP,MYSQL,MSSQL, and script schedule(cronejob). This is script
#!/bin/bash
#Store arguments from bash command line
fight=$1
support=$2
msg=rmsg
[Code]....
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Nov 23, 2010
Having a problem with an unwanted redirection in in a function call. Although this isn't the function it does illustrate the problem:
Code:
#!/bin/bash
doat () {
ALL="sys1 sys2"
for Sys in $ALL;do
echo "---> $Sys <---";
echo $(eval echo $1);
[Code]...
figure out how to get the variable into the command without outputting to the file in the eval statement? So that ssh line that gets executed would look like the following to each iteration of the for loop:
Code:
ssh root@$Sys rpm -qa|sort > /trans/${Sys}-rpm-list.txt;
doat works when the incoming argument doesn't have any redirection in the command.
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Jun 8, 2010
Is it possible to use Gambas as a GUI to read text string variables that are input by a user, and use the variables in a bash command?
I know how to do this simply with bash, but I want a GUI that little kids can easily use.
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Feb 17, 2011
Just a simple BASH for loop to read the file path from a text file (clean.txt) echo the variable for debug purposes, and scp it to a server I have using port 50 for SSH.
I've already formatted the entries in clean.txt to handle spaces correctly, using sed replacement.
Example from the clean.txt file:
Code:
/MP3/NAS000000001/Barenaked Ladies/Barenaked Ladies - Barenaked For The Holidays/20 Auld Lang Syne.mp3
/MP3/NAS000000001/Barenaked Ladies/Barenaked Ladies - Barenaked For The Holidays/14 Deck the Stills.mp3
[Code]....
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