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• Why is the "file" command get confused on .py files?

  - by pythonic metaphor

  I have several python modules that I've written. Randomly, I used file on this directory, and I was really surprised by what I saw. Here's the resulting count of what it thought the files were: 1 ASCII Java program text, with very long lines 1 a /bin/env python script text executable 1 a python script text executable 2 ASCII C++ program text 4 ASCII English text 18 ASCII Java program text That's strange! Any idea what's going on or why it seems to think python modules are very often java files? I'm using CentOS 5.2.

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• Debian - Can't stop MySQL; permissions?

  - by anon

  I just tried to upgrade from debian squeeze to unstable by replacing 'squeeze' with 'unstable' in /etc/apt/sources.list. The upgrade went smoothly except for mysql, which failed because it couldn't stop mysql. /etc/init.d/mysql stop simply returns that it failed, but if I try to get the status with /etc/init.d/mysql status it gives me this error: me@debian:~$ sudo /etc/init.d/mysql status /usr/bin/mysqladmin: connect to server at 'localhost' failed error: 'Access denied for user 'debian-sys-maint'@'localhost' (using password: YES)' . mysql is running fine, and I checked the permissions for debian-sys-maint in phpmyadmin and it's allowed to do everything, but only connect from 'localhost.'

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• init.d service died

  - by jerluc

  Adapting some code from a linux forum, I've added a service script to /etc/init.d on my ubuntu natty server to start/stop/restart node.js It literally was working the first day I made it, but then today, after viewing my website this morning, the server threw a 404, and upon further inspection, the node.js process was gone. So I went to start the service again, only this time, node.js didn't start at all, and ever since I haven't been able to get my service script working. Below is the entire script: #!/bin/sh # # Node Server Startup # case "$1" in start) echo -n "Starting node: " daemon node /usr/local/www/server.js echo touch /var/lock/subsys/node ;; stop) echo -n "Shutting down node: " killall node echo rm -f /var/lock/subsys/node rm -f /var/run/node.pid ;; status) status node ;; restart) $0 stop $0 start ;; reload) echo -n "Reloading node: " killall node -HUP echo ;; *) echo "Usage: $0 {start|stop|restart|reload|status}" exit 1 esac exit 0 Thanks for any help!

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• Shell Script to Start Mysql Server if not running

  - by user103373

  I have written a shell script to start mysql server & send a mail to admin user if it's restarted via shell script. What i am facing an issue if I run this shell script on terminal it's work perfectly & If same script runs via cronjob it's only sending the mail to the user & problem remains same. Is this problem relates to permission & how can i resolve it. Shell Script-------- #!/bin/bash EMAIL="[email protected]" SERVICE='mysql' if ps ax | grep -v grep | grep $SERVICE > /dev/null then echo "$SERVICE service running, everything is fine" else echo "$SERVICE is not running" /etc/init.d/mysql start cat <<EOF | msmtp -a gmail $EMAIL Subject: "Alert (Test Server) : Mysql Service is not running (Manually Restarted)" Mysql Server Restarted at: `date` EOF EXIT I am using msmtp for sending mail to the user on ubuntu 12.04 Server.

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• How do I debug an upstart job?

  - by Cerales

  I have the following job in /etc/init/collector: start on runlevel [2345] stop on runlevel [!2345] expect daemon exec /usr/bin/twistd -y /path/to/my/tac/file When I start the job with sudo service collector start, it hangs. If I ctrl-c and run initctl list, I see this: collector start/killed, process 616 I can't see an instance of the twistd daemon in ps, and the HTTP server it's supposed to be providing does not exist. I even tried this without 'expect daemon' and with a simple call to a one-line bash script using a script stanza, and it still doesn't work. I think I'm doing something very wrong. What could it be?

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• delete multiple files on linux with spaces in file names

  - by raido

  I have a directory on my Linux box with over 10000 files that I have to delete. Running... sudo rm -rf /var/tmp/* Gives the error message... sudo: unable to execute /bin/rm: Argument list too long The solution to this is to run sudo find /var/tmp | xargs sudo rm This only works for files with no spaces in the file name. However, some of the files have names with spaces in them and they are not deleted. For example, if a file is named 'A File With Spaces in the Name.dat', Running the command gives me errors like this.... rm: cannot remove `/var/tmp/A': No such file or directory rm: cannot remove `File': No such file or directory rm: cannot remove `With': No such file or directory rm: cannot remove `Spaces': No such file or directory rm: cannot remove `in': No such file or directory rm: cannot remove `the': No such file or directory rm: cannot remove `Name.dat': No such file or directory How do I pass the complete file path to xargs sudo rm without breaking up the file name.

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• Applescript won't open applications on my external monitor

  - by jpadvo

  I'm trying to open a new MacVim window with Applescript, and have found partial success with this: do shell script "cd \"~/code/application\"; ~/bin/mvim > /dev/null 2>&1" This works fine, and opens a new MacVim window with it's working directory set to ~/code/application. BUT it always opens on the screen of my laptop, not on the external monitor with the currently active space where I am working. Is there a way to get MacVim to open in the current space? Edit: same problem with opening a finder window: tell application "Finder" to make new Finder window

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• Let a program (called by other program) run as admin without prompt

  - by DarkGhostHunter

  As you may know, Steam doesn't like no-admin accounts for installing games or whatsoever. In my case, I have a user in my computer that usually install a lot of games and every time I have to put my password to successfully play them. Blame, /bin/SteamService.exe. I came up with a solution: using RunAs to make Steam run as the admin user. But that is a potential security risk. So instead of that, I'm asking if is possible to do the following: Hot to run SteamService.exe with high trust levels (or admin privileges) automatically when Steam calls it? That way he can play and install games in Steam leaving the rest of the system alone. I don't mind if the user has to click "yes or no", but without prompt its better because some games asks every time they're executed.

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• How to setup IP alias on bridged interface in Ubuntu

  - by Anonymouslemming

  How do I setup an IP alias on a bridge (br0) device on Ubuntu ? If I wait for br0 to come up and then do /sbin/ifconfig br0:0 192.168.10.1 netmask 255.255.255.0 then it works fine. If however I add the following to my /etc/network/interfaces file, it does not work and the network fails to start: auto br0:0 iface br0:0 inet static address 192.168.10.1 netmask 255.255.255.0 At the moment, I have a script in /etc/network/if-up.d/bridge_alias that does this as follows: #!/bin/bash if [ "${LOGICAL}" == "br0" ] && [ "${PHASE}" = "post-up" ]; then echo -n "Starting br0:0 ... " /sbin/ifconfig br0:0 192.168.10.2 netmask 255.255.255.0 echo "Done!" fi What is the right way of doing this though, just using the OS network config files ?

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• Pointing a subdomain at a file

  - by Seva Alekseyev

  Switched hosting recently (Linux, CPanel, WHM). At the old host, there was a subdomain that had a file (instead of a directory) as a root. The file was a CGI script. The said subdomain was created via CPanel by me a while ago. At the new host, I'm trying to recreate this subdomain. And I get the following error: The directory, /home/(...)/cgi-bin/guest.cgi could not be created. Is there a tweak somewhere that enables this functionality? EDIT: tried to repeat the trick on the old site, and I could not. CPanel update broke it, maybe?

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• "Reset" colors of terminal after ssh exit/logout

  - by dgo.a

  When I ssh into a remote server, I like the colors of the terminal to change. I use setterm on my remote ~/.bashrc file to get this done. However, when I exit, the terminal colors are not reset to the local ones. I solved the problem, but I am not sure if it is the best solution. This is what I could come up with. On the ~/.bash_logout on the remote server, I put: echo -e "\033[0m" /usr/bin/clear Just out of curiousity: Does anyone know of a better way? (I got the echo -e "\033[0m" line from http://edoceo.com/liber/linux-bash-shell)

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• Keeping the wireless connected.

  - by casr

  I’m running OpenBSD on a computer which is connected via wireless to the network. It is a well supported NIC and I’ve had no problems with it from a hardware perspective. Unfortunately my wireless access point occasionally loves to forget it’s settings. I then have to help it remember. However, in this intervening time my OpenBSD box drops the connection and then does not automatically reconnect. I have alleviated my problems by running this simple script in the background: #!/bin/sh while [ 1 ] do ping -c1 192.168.1.254 > /dev/null if [ $? = 1 ] then sh /etc/netstart ral0 > /dev/null fi sleep 30 done [Ping the access point. If there is no response attempt to reconnect.] It seems to me to be a very suboptimal solution. Has anyone else come across a better way?

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• disable everything in update-motd.d dir in ubuntu server

  - by senzacionale

  mitjab@server:/etc/update-motd.d$ dir 00-header 10-help-text 91-release-upgrade 98-fsck-at-reboot 99-footer mitjab@server:/etc/update-motd.d$ i need to remove all auto updates or notifiers in my ubuntu server becouse it is to slow. How can i remove or disable it. Now when i login to server it takes 30s to see server when i write username and passwd. How can i disable all this.. if i run mitjab@server:/etc/update-motd.d$ update-motd --disable /usr/bin/python: can't find '__main__' module in '/usr/share/command-not-found'

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• MySQL Replication fix after server shutdown/start

  - by Jagbir

  Server1 is Master Server2 is Slave Both are in our AWS testing env and we stop them once done with our work. When start again, Master rotates/creates new binary log file but slave keep looking for same/existing one and replication stops. Right now, I'm manually repairing it by (slave): stop slave; CHANGE MASTER TO MASTER_HOST='xx', MASTER_USER='xxx', MASTER_PASSWORD='xxx' , MASTER_LOG_FILE='new-mysql-bin.00000x',MASTER_LOG_POS=107; start slave; show slave status\G and slave becomes good again.Mysql is 5.5.x on Ubuntu 12.04. Will appreciate any help in automating it.

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• How Do I Parse a String?

  - by Russ

  I am new to bash, and I am creating a script that loops through the files in a directory and based on part of the filename, does something with the file, so far I have this: #!/bin/bash DIR="/Users/me/Documents/import/*" for f in "$DIR" do $t=?????? echo "Loading $f int $t..." done so $f will output something like this: /Users/me/Documents/import/time_dim-1272037430173 out of this, I want time_dim, the directory can be variable length and -1272037430173 is a fixed length (it's the unix timestamp btw). What is the best way to go about this?

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• Determine the architecture of a Mac from the command line or script?

  - by Brian Postow

  I'm writing a shell script, and I need to know the archetecture, ie PPC or Intel. Back in the day, there was a program /bin/arch that told you, but my mac doesn't seem to have it... Is there an easy way I can do this? Grep for something in a logfile? call some other program that spits that out as a side effect? It would be nice to know what OS Version I'm running too, but that may not be necessary. thanks

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• mysql does not start properly

  - by Erik Svenson

  Hi I am using XAMPP on Windows XP. Since I changed the version from 1.73 to 1.77 MySQL does not start properly. That means that the status says, it is started, but the safety check says it is not . Because of that I cannot set any password, which is unacceptable. Any idea? That's mysql_error.log: 111007 9:42:56 [Note] Plugin 'FEDERATED' is disabled. 111007 9:42:56 InnoDB: The InnoDB memory heap is disabled 111007 9:42:56 InnoDB: Mutexes and rw_locks use Windows interlocked functions 111007 9:42:56 InnoDB: Compressed tables use zlib 1.2.3 111007 9:42:56 InnoDB: Initializing buffer pool, size = 16.0M 111007 9:42:56 InnoDB: Completed initialization of buffer pool 111007 9:42:57 InnoDB: highest supported file format is Barracuda. 111007 9:42:57 InnoDB: Waiting for the background threads to start 111007 9:42:58 InnoDB: 1.1.8 started; log sequence number 1595675 111007 9:42:58 [Note] Event Scheduler: Loaded 0 events 111007 9:42:58 [Note] mysql\bin\mysqld.exe: ready for connections. Version: '5.5.16' socket: '' port: 3306 MySQL Community Server (GPL)

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• What does this error mean (Can't create TCP/IP socket (24))?

  - by user105196

  I have web server with OS RHEL 6.2 and Mysql 5.5.23 on another server and the web server can read from Mysql server without problem, but some time I got this error: [Sun Sep 23 06:13:07 2012] [error] [client XXXXX] DBI connect('XXXX:192.168.1.2:3306','XXX',...) failed: Can't create TCP/IP socket (24) at /var/www/html/file.pm line 199. my question : What does this error mean (Can't create TCP/IP socket (24))? is it OS error or Mysql error ? perl -v This is perl, v5.10.1 (*) built for x86_64-linux-thread-multi mysql -V mysql Ver 14.14 Distrib 5.5.23, for Linux (x86_64) using readline 5.1 su - mysql -s /bin/bash -c 'ulimit -a' core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 127220 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 10240 cpu time (seconds, -t) unlimited max user processes (-u) 1024 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited

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• How to compile gcc-4.0 on Mountain Lion

  - by Frizlab

  So far I've successfully launched the configure, but when I type make, I get the following error, after some time (there's a lot which compile successfully): ld: unknown/unsupported architecture name for: -arch i686 /usr/bin/libtool: internal link edit command failed make[2]: *** [libgcc_s.dylib] Error 1 make[1]: *** [libgcc.a] Error 2 make: *** [all-gcc] Error 2 Is there a way to tell gcc not to compile itself for the i686 architecture? Here's my uname -a if it can help: Darwin Frizlabs-Computer.local 12.2.0 Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64 x86_64 PS: I know gcc-4.0 is ancient, but I do need it.

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• Kill child process when the parent exits

  - by kolypto

  I'm preparing a script for Docker, which allows only one top-level process, which should receive the signals so we can stop it. Therefore, I'm having a script like this: one application writes to syslog (bash script in this sample), and the other one just prints it. #! /usr/bin/env bash set -eu tail -f /var/log/syslog & exec bash -c 'while true ; do logger aaaaaaaaaaaaaaaaaaa ; sleep 1 ; done' Almost solved: when the top-level process bash gets SIGTERM -- it exists, but tail -f continues to run. How do I instruct tail -f to exit when the parent process exits? E.g. it should also get the signal. Note: Can't use bash traps since exec on the last line replaces the process completely.

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• Why does compiz window decorator crashes unity

  - by user32509

  I used to run Unity 2D on my work machine. Now I am trying to use Unity. Everthing looks fine except for the missing window decoration. I have installed the compiz manager. Every time I activate the plugin "window decoration" Unity "crashes" the Unity bar along with the top panel . unity --reset oder replace does nothing. The command for the window manager is /usr/bin/compiz-decorator Maybe I need to specify another window decorator?

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• Versioning files in Windows XP

  - by Mike Cole

  I would like to set up an archive folder in Windows XP that would allow me to drop several different versions of the same file, and have it store each version. I would envision this to work similar to the recycle bin, where you can drop the same file 10 times and it stores each version. Anybody know how I can do this? Thanks! Edit: Using a Version Control System is complete overkill for this situation. I may just write a script that appends a date/time stamp to the file when added to the folder.

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• nvidia ignores the resolution listed in xorg.conf, even though I have 'nvidia-settings --load-config-only' on startup

  - by ihadanny

  when my machine boots, I see a nice 1920X1080 resolution screen, but the minute I login to my user, it's reverted to an ugly 720Xwhatever. When I run nvidia-settings and select 1920X1080, it's ok again. What am I missing??? my /etc/X11/xorg.conf contains: Section "Screen" ... Option "metamodes" "nvidia-auto-select +0+0; 1920x1080 +0+0" ... EndSection I'm using unity 3.8.16 on ubuntu 11.04, and when I check on gnome-session-properties I see that I have sh -c '/usr/bin/nvidia-settings --load-config-only on my startup.

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• VNC server shows black screen with a X cursor

  - by user2656114

  Starting VNC server using vncserver :1, client can connect to the server but it shows only a black screen with a X cursor. Contents of .vnc/xstartup is: #!/bin/sh # Uncomment the following two lines for normal desktop: unset SESSION_MANAGER exec /etc/X11/xinit/xinitrc [ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup [ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources xsetroot -solid grey vncconfig -iconic & xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" & twm & Is it a problem with this?

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• adding ftp user on ubuntu

  - by user46250

  I followed this tut http://www.trainsignal.com/blog/how-to-set-up-safe-ftp-in-linux to setup an ftp server with user account sudo mkdir -p /home/ftp/ftpuser sudo useradd ftpuser -d /home/ftp/ftpuser -s /bin/false sudo passwd ftpuser when I tried to connect with login ftpuser remotely it didn't work. It didn't work even with root UNLESS I removed root from ftpusers. I am confused ftpusers are the users NOT allowed to do ftp ? Where are the list of users allowed then and why can't I connect with ftpuser I created ?

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