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  • Shell script to control user initiated processes

    - by Gnanam
    Hi, I'm not a shell script expert. I'm looking for a shell script which checks for maximum number of Java processes (MyJavaStandalone) running in the system before starting/executing the current Java process. Example: Script: /home/myfolder/script.sh script.sh contains /usr/java/jdk1.6.0/bin/java MyJavaStandalone >> $DATE.log & Here, before executing "MyJavaStandalone", if there are already 10 processes running, then this current process should not be started.

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  • Daemon process exiting when shell closes

    - by Pace
    I have a script which starts a daemon process and then sleeps for 20 seconds. If I run the script on SLES11 SP1 or RHEL6 then after the script exits the process is still running. If I run the script on SLES11 SP3 or RHEL6.3 then after the script exits the process is no longer running. The process continues to run for the entire 20 second sleep and is killed when the process exits. The script is run via expect so the script's entire shell exits with the process. Obviously if this wasn't a daemon it was starting I wouldn't be surprised. Also, I suspect the problem isn't the OS version as much as it is the difference in the way we've setup the newer servers (no idea what those differences are though, the older servers were set up years ago). During the 20 seconds the process runs if I do a ps I get the following: root 4699 1 0 15:14 pts/2 00:00:00 sudo -u openmq /opt/PacketPortal/openmq/default/bin/imqbrokerd -bgnd -autorestart -silent -port 7676 -Dimq.service.activelist=admin,ssljms -D openmq 4701 4699 0 15:14 pts/2 00:00:00 /bin/sh /opt/PacketPortal/openmq/default/bin/imqbrokerd -bgnd -autorestart -silent -port 7676 -Dimq.service.activelist=admin,ssljms -Dimq.ssl The fact that the parent process of 4699 is 1 seems to suggest to me that the process has been correctly daemonized. However, after the expect script exits both 4699 and 4701 are killed. What could be causing this? UPDATE I've printed the same output on the servers that work. During the 20 second sleep I get: openmq 18652 1 0 15:44 pts/1 00:00:00 /bin/sh /opt/PacketPortal/openmq/default/bin/imqbrokerd -bgnd -autorestart -silent -port 7676 -Dimq.service.activelist=admin,ssljms -Dimq.ssljms.tls.port=7680 openmq 18686 18652 8 15:44 pts/1 00:00:02 /usr/java/latest/bin/java -cp /opt/PacketPortal/openmq/default/bin/../lib/imqbroker.jar:/opt/PacketPortal/openmq/default/bin/../lib/imqutil.jar:/opt/PacketPortal/ope After the 20 second sleep I get: openmq 18652 1 0 15:44 ? 00:00:00 /bin/sh /opt/PacketPortal/openmq/default/bin/imqbrokerd -bgnd -autorestart -silent -port 7676 -Dimq.service.activelist=admin,ssljms -Dimq.ssljms.tls.port=7680 openmq 18686 18652 5 15:44 ? 00:00:02 /usr/java/latest/bin/java -cp /opt/PacketPortal/openmq/default/bin/../lib/imqbroker.jar:/opt/PacketPortal/openmq/default/bin/../lib/imqutil.jar:/opt/PacketPortal/ope After the script exits it disconnects the controlling terminal. I wonder why it doesn't do that on the newer servers. UPDATE Here is the section of the script that actually launches OpenMQ. The -bgnd flag is what is supposed to daemonize it. sudo -u openmq $IMQ_HOME/bin/$EXECUTABLE -bgnd $BROKER_OPTIONS $ARGS > /dev/null 2>&1 &

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  • Preserving name when bulk unzipping files?

    - by Elip
    Sorry this question is trivial, but I couldn't get it to work: I have a folder full of .zip files, each .zip file contains exactly one .xml file. The zip files have sensible names like a.zip etc., while the .xml file contained in them have some "randomname".xml Now I want to unpack all the .zip files in the folder, preserving the name of the .zip files, so that a.zip gets unpacked into a.xml, b.zip into b.xml etc... I only managed to achieve a batch unpacking with the command: for z in *.zip; do unzip "$z"; done How do I enhance this to keep the names?

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  • Shell Script, iterating over a folder

    - by Martin
    I have very basic shell scripting knowledge. I have photos under original folder on many different folder like this folder + folder1 + original + folder2 + original + folder3 + original + folder4 + original Using mogrify I'm trying to create thumbs under a thumb folder following a structure to this. folder + folder1 + original + thumb + folder2 + original + thumb + folder3 + original + thumb + folder4 + original + thumb I'm a little lost in how to write the shell script that may iterate through it. I'm ok giving mogrify its settings but I don't complete understand how to tell the script to go iterate each folder to run the mogrify command.

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  • How do I create a Launcher in Ubuntu 9.10 that runs a shell script?

    - by mkelley33
    Here's my situation: New to Ubuntu (just installed 9.10 Karmic Koala 64 bit) Purpose: to easily run PyCharm without too much typing (ie. cd... ./pycharm.sh) Want to create desktop Launcher instead of terminal & typing (without resorting to the "Run in Terminal" option) Tried to create Launcher to executes .sh script in Document directory Right-clicked Desktop Create Launcher a. Type == Application; Browse [insert absolute path to .sh script]; no luck b. Type == Application in Terminal; Browse ...ditto I'm open to any other alternatives that involve as little typing as possible. I would like to just start Ubuntu, click Launcher icons, and have terminals spring to life, running the intended scripts. Crazy? No. Lazy? Probably. Productive? Hopefully :)

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  • Curl authentication

    - by Jack Humphries
    I am trying to download a file with cURL from a password protected directory on my site. It is not working. Instead of the downloading the requested file, it downloads a HTML file that says, "Authentication Required!" I'm not sure what the problem is. I've tried both of these (with the same result). The username and password are correct (and if the link below is used in a web browser, the file downloads successfully). 1) The username and password are included as part of the URL. curl https://username:[email protected]/auth/file.dmg --O /file.dmg; 2) The username and password are included as an option. curl -u username:wordpass.1 https://www.example.com/auth/file.dmg --O /file.dmg;

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  • readlink: illegal option -- f

    - by Scott
    Recently the script was working fine, but from some days I'm receiving such message, while running the readlink -f "$0" command: readlink: illegal option -- f usage: readlink [-n] [file ...] I was running the following code to debug: #!/bin/sh DIR=`pwd` RLPATH=`which readlink` RLOUT=`readlink -f -- "${0}"` DIROUT=`dirname -- ${RLOUT}` echo "dir: ${DIR}" echo "path: ${PATH}" echo "path to readlink: ${RLPATH}" echo "readlink output: ${RLOUT}" echo "dirname output: ${DIROUT}" Output: # ./debug.sh readlink: illegal option -- f usage: readlink [-n] [file ...] usage: dirname string [...] dir: /home/svr path: /sbin:/bin:/usr/sbin:/usr/bin:/usr/games:/usr/local/sbin:/usr/local/bin:/root/bin path to readlink: /usr/bin/readlink readlink output: dirname output: What is wrong ?

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  • How do I use an SSH public key from a remote machine?

    - by kubi
    Setup The public keys are set up on a Macbook. I can do a passwordless push to github and a server (iMac) on the local network. The Problem I know the keys are partially setup correctly, because I everything works if I'm sitting at the Macbook. What doesn't work is when I SSH into the Macbook remotely and attempt to push to github or to the iMac server. I'm prompted to input my SSH key passphrase. What am I missing to enable pushing to github from the Macbook while logged in remotely from the iMac?

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  • Using terminal vs KDE in linux?

    - by Ke
    Im used to using nautilus within centos but have recently just got a VPS and quickly realising that using a KDE is unacceptable in this environment. Although I do find it so much quicker doing things like folder permissions in KDE rather than typing it all out in the terminal? Everyone I speak to says, use the terminal and I should learn this way as opposed to using the KDE, but theres certain things I just dont get How is it possible to make quick changes to scripts and viewing them in a browser etc , without a mouse or using KDE? and only using a terminal?? I am wondering how to develop websites just using the terminal??? How can it be quicker to type out/view permissions etc in the terminal when its instant and just a few clicks in the KDE? Any thoughts are much appreciated. I would love to understand the benefits but just cant seem to see them right now. Cheers Ke.

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  • How do I perform commands in another folder, without repeating the folder path?

    - by Valter Henrique
    Is there a clever way to do copy and move operations or a command to duplicate a file, without having to do a cd, then mv after, at the same folder? For example, I have to run the following: mv /folder1/folder2/folder3/file.txt /folder1/folder2/folder3/file-2013.txt Note that the directory to where I'm moving the file is the same, but I have to put the whole path again and sometimes it gets annoying. I'm curious to know if there's another way to do that without having to put the whole path again, because the operation would be done in the same path.

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  • How can I sort du -h output by size

    - by Tom Feiner
    I need to get a list of human readable du output. However, du does not have a "sort by size" option, and piping to "sort" doesn't work with the human readable flag. For example, running: du | sort -n -r Outputs a sorted disk usage by size (descending): du |sort -n -r 65108 . 61508 ./dir3 2056 ./dir4 1032 ./dir1 508 ./dir2 However, running it with the human readable flag, does not sort properly: du -h | sort -n -r 508K ./dir2 64M . 61M ./dir3 2.1M ./dir4 1.1M ./dir1 Does anyone know of a way to sort du -h by size?

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  • Run script when POST data is sent to Apache

    - by Nathan Adams
    Among my several years of running servers there seems to be a pattern with most spam activity. My question/idea is that is there a way to tell Apache to run a script when POST data is detected? What I would want to do is perform a reverse DNS lookup on the client's IP address, and then perform a DNS lookup on the hostname in the PTR record. Afterwards, perform some checks, excuse the pseudo-code: if PTR does not exist: deny POST request if IP of PTR hostname = client's IP Allow POST request else deny POST request Though I don't care about GET requests, even though they can be just as malicious, this idea is targeted towards spam comments which use POST data to send the comment data to the web server. In order to make sure there isn't much of a time delay, I would run my own recursive DNS server. Please do note, this isn't meant to be a sliver bullet to spam, but it should decrease the volume. Possible or impossible?

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  • Configure bash_profile for one single terminal emulator

    - by Hugo
    I'm using a new terminal emulator. Terminology is the E17 default terminal, and it have a great command, $ tyls with is a "graphical" $ ls I want to create an alias just for this terminal, because the command "tyls" don't make sense to konsole, rxvt or other terminals. I'm thinking in some kind of "if" in ~/.bash_profile to test if I'm on terminology and then run the following command: alias ls="tyls" But how can I test if I'm in terminology but not xterm? Can someone help me? Thanks!

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  • How can I change the color of xterm titlebar?

    - by tellus55
    Hi, I want to automatically change the color of my xterm titlebar. I would like to put code into my .bashrc so that the color changes automatically (say depending on the directory I am in). I know how to change the prompt and also how to change the text displayed in the titlebar. My question is about the color of the titlebar. Right now the color is orangish. I am using Ubuntu. Thanks

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  • "No such file or directory" when the file is there

    - by Arlaud Agbe Pierre
    I'm trying to run XPDF on a linux (probably red hat) OVH shared server. I've managed to have ftp ssh access and put the 64 bits binaries onto a folder. The problem is : even though the files are there with the right permissions, if I try running it I'm getting a file not found problem (I'm thinking about a missing link..) Long story short : jurisedi@ssh1:~/xpdf$ file pdftotext pdftotext: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), stripped jurisedi@ssh1:~/xpdf$ ./pdftotext -ovh: jurisedi@ssh1:~/xpdf$: No such file or directory Any ideas ?

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  • Why does my Mac address reset after reconnecting?

    - by Mr.Student
    I have ubuntu 12. I'm changing my mac address with ifconfig wlan0 hw ether xx:xx:xx:xx:xx:xx which works. However when I restart my connection my computer resets my mac to my original mac address. I'm guessing that this happens because something calls... ifconfig wlan0 down ... do something before connecting ifconfig wlan0 up ... connect to designated access point I want my mac address to however be the same no matter how many times I disconnect and reconnect, whether to another network or the same one. Also it would be nice to turn off the auto-connect feature for my network-manager with out having to edit each individual connection. Lastly I would like to know how to connect to a wifi network through the terminal and not via gui network manager ubuntu provides.

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  • cannot move to a subdirectory of itself

    - by fire
    I have 2 folders: /home/sphinx/articlesdb/ and: /home/sphinx/tmp/articlesdb/ I want to move and overwrite all of the files from tmp into the main folder. I am currently using: mv -f /home/sphinx/tmp/articlesdb/ /home/sphinx/ But I get this error: mv: cannot move `/home/sphinx/tmp/articlesdb/' to a subdirectory of itself, `/home/sphinx/articlesdb' It needs to do this as fast as possible so I don't want to copy. Should I remove /home/sphinx/articlesdb/ completely and then run the mv command or do I just need to tweak the command slightly?

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  • UNIX "find" command, match literal "dot"

    - by Robottinosino
    I need files ending with ".pdf" or ".png"; here's my attempt: find /Users/robottinosino/Desktop/_PublishMe_ -type f -regex '.*[pdf|png]' this incorrectly includes files ending with "Apdf", "Zpdf", etc. (missing literal dot before file extension) I tried adjusting the pattern to: find /Users/robottinosino/Desktop/_PublishMe_ -type f -regex '.*\.[pdf|png]' but then no results are returned. Escaping the . with a backslash does not work. Why? [0] $ uname -a Darwin Robottinosino.local 10.8.0 Darwin Kernel Version 10.8.0: Tue Jun 7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386 i386 Thanks!

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  • Cannot find /Users/user/tomcat/bin/setclasspath.sh

    - by Ankit
    This file is needed to run this program. I am new to Mac OS X and its terminal. I am installing Apache Tomcat, using steps provided through this URL http://www.editrocket.com/articles/tomcat_mac.html, but when I run sh startup.sh I get the following error: Cannot find /Users/user/tomcat/bin/setclasspath.sh This file is needed to run this program. Whereas setclasspath.sh already exists at this location.

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  • script to count the occurence of the particular string in the given time interval

    - by pruthvi
    We are trying to write a script "sendemail.sh" to count the number of occurrence of a particular string in a log file "SendEmail.log" within the given interval. We have a log file. In that we are searching for a pattern "ReqInputMsgLog" and need to count the number of times it occurred in the given period for eg: from "2014-08-19 11:30" to "2014-08-19 11:34". And our script look like this: #!/bin/sh enterdate=$1 echo $enterdate enddate=$2 enterdate1=`date +%s -d $enterdate +"%Y-%m-%d %H:%M"` echo $enterdate1 enddate1=`date +%s -d $enddate +"%Y-%m-%d %H:%M"` echo $enddate count=0 cat SendEmail.log | grep "ReqInputMsgLog" | awk -F "[" '{print $3}' | awk -F "," '{print $1}' > /con/scripts_server/file.txt for line in `cat /con/scripts_server/file.txt` do logdate=`echo $line | awk -F : '{print $1":"$2}'` if [[ $logdate < $enddate1 ]]; then count=`expr $count + 1` fi done echo $count But when we are trying to execute the script by the below command its not showing the proper count. ./sendemail.sh "2014-08-19 11:30" "2014-08-19 11:34" Log file is very big one. Small chunk has been posted here. INFO [SIBJMSRAThreadPool : 5] [2014-08-19 11:18:24,471] SendEmail - 8/19/14 11:18 AM,ECCF25B0-0147-4000-E000-1B830A3C05A9,ReqInputMsgLog,SendEmail,<?xml version="1.0" encoding="UTF-8"?> <in:sendEmailRequestMsg xmlns:in="http://EmailMed/EmailMedInterface" xmlns:ns0="wsdl.http://EmailMed/EmailMedInterface" xmlns:ns1="http://EmailMed/EmailMedInterface" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:me="wsdl.http://EmailMed/EmailMedInterface" xsi:type="me:sendEmailRequestMsg"> <in:sendEmail xmlns:xci0="http://EmailMed/EmailMedInterface"> INFO [SIBJMSRAThreadPool : 7] [2014-08-19 11:18:14,235] SendEmail - 8/19/14 11:18 AM,ECCEFDB2-0147-4000-E000-1B830A3C05A9,ReqInputMsgLog,SendEmail,<?xml version="1.0" encoding="UTF-8"?> <in:sendEmailRequestMsg xmlns:in="http://EmailMed/EmailMedInterface" xmlns:ns0="wsdl.http://EmailMed/EmailMedInterface" xmlns:ns1="http://EmailMed/EmailMedInterface" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:me="wsdl.http://EmailMed/EmailMedInterface" xsi:type="me:sendEmailRequestMsg"> <in:sendEmail xmlns:xci0="http://EmailMed/EmailMedInterface"> INFO [SIBJMSRAThreadPool : 7] [2014-08-19 11:18:14,241] SendEmail - xmlText: <?xml version="1.0" encoding="UTF-8"?> after awk command we will get a file "/con/scripts_server/file.txt" which looks similar like below: 2014-08-19 11:28:03 2014-08-19 11:28:06 2014-08-19 11:28:17 2014-08-19 11:28:53 2014-08-19 11:29:02 2014-08-19 11:29:47 2014-08-19 11:29:57 2014-08-19 11:30:07 2014-08-19 11:30:17 2014-08-19 11:30:19 2014-08-19 11:30:19 2014-08-19 11:30:22 2014-08-19 11:30:25 2014-08-19 11:30:25 2014-08-19 11:30:36 2014-08-19 11:30:51 2014-08-19 11:30:56 2014-08-19 11:30:59 2014-08-19 11:30:59 2014-08-19 11:31:08 2014-08-19 11:31:25 2014-08-19 11:32:19 2014-08-19 11:32:22 2014-08-19 11:32:27 2014-08-19 11:32:28 2014-08-19 11:32:41 2014-08-19 11:32:49 2014-08-19 11:32:59 2014-08-19 11:33:27 2014-08-19 11:33:41 2014-08-19 11:34:07 2014-08-19 11:34:14 2014-08-19 11:34:21 2014-08-19 11:34:25 2014-08-19 11:34:38 2014-08-19 11:34:50 2014-08-19 11:34:58

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  • Unable to run cvlc in a script

    - by VxJasonxV
    I'm creating a script that issues a few curl commands in order to access a time-protected mms stream link, then set up a relay using cvlc (vlc's command line interface) for my own use on an unencumbered player. The curl aspect of this is working, as I can run as a browser and curl side by side and get the same access url. (It's time locked meaning the stream will work forever, but you have to connect quickly or the URL will time out.) The very end of the script prints the command I will run, which is then followed up by "exec $CMD". When I echo $CMD I get: cvlc --sout '#standard{access=http,mux=asf,dst=0.0.0.0:58194}' mms://[...] But the cvlc execution output says: [0x9743d0] main interface error: no suitable interface module [0x962120] main libvlc error: interface "globalhotkeys,none" initialization failed [0x9743d0] dummy interface: using the dummy interface module... [0xb16e30] stream_out_standard stream out error: no mux specified or found by extension [0xb16ad0] main stream output error: stream chain failed for `standard{mux="",access="",dst="'#standard{access=http,mux=asf,dst=0.0.0.0:58194}'"}' [0xb11cd0] main input error: cannot start stream output instance, aborting [0xb11f70] signals interface error: Caught Interrupt signal, exiting... Why is it ignoring my --sout input?

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  • Setting up ssh config file with id_rsa through tunnel

    - by Rubens
    I've been struggling to set up a valid configuration to open a connection with a second machine, passing through another one, and using an id_rsa (which requests me a password) to connect to the third machine. I've asked this question in another forum, but I've received no answer that could be considered very helpful. The problem, better described, goes as follows: Local machine: user1@localhost Intermediary machine: user1@inter Remote target: user2@final I'm able to do the entire connection using pseudo-tty: ssh -t inter ssh user2@final (this will ask me the password for the id_rsa file I have in machine "inter") However, for speeding things up, I'd like to set my .ssh/config file, so that I can simply connect to machine "final" using: ssh final What I've got so far -- which does not work -- is, in my .ssh/config file: Host inter User user1 HostName inter.com IdentityFile ~/.ssh/id_rsa Host final User user2 HostName final.com IdentityFile ~/.ssh/id_rsa_2 ProxyCommand ssh inter nc %h %p The id_rsa file is used to connect to the middle machine (this requires me no password typing), and id_rsa_2 file is used to connect to machine "final" (this one requests a password). I've tried mixing up some LocalForward and/or RemoteForward fields, and putting the id_rsa files in both first and second machines, but I could not seem to succeed with no configuration whatsoever. Hope somebody can help me here! Regards! P.S.: the thread I've tried to get some help from: http://www.linuxquestions.org/questions/linux-general-1/proxycommand-on-ssh-config-file-4175433750/

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  • yum list installed including version of all installed packages CentOS 5.4

    - by Andy
    I have a list of packages installed with yum on CentOS 5.4 [root@server ~]# yum list installed ... Installed Packages GConf2.x86_64 2.14.0-9.el5 installed ImageMagick.x86_64 6.2.8.0-4.el5_1.1 installed MAKEDEV.x86_64 3.23-1.2 installed MySQL-python.x86_64 1.2.1-1 installed I would like to download these rpms locally using yumdownloader --resolve MySQL-python-1.2.1-1.x86_64 etc. However the package formatting is different (MySQL-python.x86_64 1.2.1-1 vs MySQL-python-1.2.1-1.x86_64) so I am unable to download them using the above command. I don't want to have to parse the output of yum list installed, and I also don't want to use the contents of /var/log/yum.log* as I'll have to account for erased packages and version discrepancies. However /var/log/yum.log* does have the formatting I require... May 25 14:58:15 Installed: groff-1.18.1.1-11.1.x86_64 May 25 14:58:15 Installed: bzip2-1.0.3-4.el5_2.x86_64 Any suggestions?

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