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  • Copying a large directory tree locally? cp or rsync?

    - by Rory
    I have to copy a large directory tree, about 1.8 TB. It's all local. Out of habit I'd use rsync, however I wonder if there's much point, and if I should rather use cp. I'm worried about permissions and uid/gid, since they have to be preserved in the clopy (I know rsync does this). As well as thinks like symlinks. The destination is empty, so I don't have to worry about conditionally updating some files. It's all local disk access, so I don't have to worry about ssh or network. The reason I'd be tempted away from rsync, is because rsync might do more than I need. rsync checksums files. I don't need that, and am concerned that it might take longer than cp. So what do you reckon, rsync or cp?

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  • Can files deleted with rm -rf be recovered?

    - by Lena
    When I delete folders or files in through osx terminal using the rm -rf, where do they go? I heard that some say they are deleted directly, but some also say it only "remove the link to the file making it unable to be found or accessed without special tools" (http://superuser.com/questions/370786/where-do-files-and-directories-go-when-i-run-rm-rf-folder-or-file-name-in-ubu). Someone said something about ext3 being able to save rm-ed files in ubuntu but what about mac?

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  • Passing parameters to a shell script running as a cronjob

    - by Takashi
    I am new to bash scripting (not programming in general). I am writing a bash script that will run a Python script I have written. I want to be able to do the following: Pass parameters to the bash script via the cronjob (so I can have two cron jobs) one to be run with parameter 'foobar', and the other 'foo' switch based on the parameter passed to the bash script (by switching, I mean an if/else based on the paramter passed to the bash script).

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  • Substiting a line through PHP in SSH

    - by Asad Moeen
    I've already setup SSH usage in PHP and most of the things work. Now what I want to do is that I'm looking to edit a line in a file and replace it back. It works directly on the server but can't seem to get it working with PHP files. Here is what I'm trying. $new_line1 = 'Line $I want to add - The $I has to go into the file as it is'; $new_line2 = 'Ending $text of the line - $text again goes into file; $query = "Addition to line"; $exec1= 'cd /root; perl -pe "s/.*/' ; $exec2= '/ if $. == 37" Edit.sh > Edited.sh'; $new="$exec1$new_line1$query$new_line2$exec2"; $edit="cd /root/mp; cp Edited.sh Edit.sh"; echo $ssh->exec($new); echo $ssh->exec($edit); Now the thing is that running the perl command directly in SSH works without any errors but when I run this through PHP I get the error: Substitution replacement not terminated at -e line 1. I want to know why would it work this way and not that?

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  • What's the best way to clean up after a fork bomb?

    - by raldi
    $ ls bash: no more processes Uh oh. Looks like someone made a fork bomb. Where I used to work, this pretty much meant that the shared server would need to be power-cycled, since even the sysadmins with root often couldn't get the problem cleaned up. Often, they couldn't even get a prompt. I've heard a few tricks (notably, to send STOP signals rather than KILL signals, since the latter would allow the remaining threads to immediately replace the killed ones), but I've never seen a comprehensive guide entitled So, You Have Yourself a Fork Bomb? Let's make one.

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  • How to download all file content from a folder using wget and http

    - by user1526912
    I am trying to use wget and http to download all contents from folderAA below to directory /root/sstest wget -r --directory-prefix="/root/sstest" -o /root/sstest2.log http://site.com/folder1/folder2/folderAA/ When I submit the above command nothing is downloaded. If I submit a wget request for a specific file from folderAA the file is actually downloaded to /root/sstest: wget -r --directory-prefix="/root/sstest" -o /root/sstest2.log http://site.com/folder1/folder2/folderAA/file.txt Can someone tell me why I cannot download all file content from folderAA at once using the first wget request?

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  • Extract specific files in a tar archive using a wildcard

    - by AdrieanKhisbe
    I'm tring for a script to extract only jpeg pictures from an archive containing maky kind of files. To do so I tried first to use: tar -xf MyTar.tar *.jpg but it failed (*.jpg not found) and suggest me to use "--wildcard". So I tried tar -xf MyTar.tar --wildcard *.jpg I did that, but then the same error and a different warning saying yo me that the option "--wildcard" is ambigious. I've been over the manuel pages for tar, but didn't find a clue about the problem thanks

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  • init never reaping zombie/defunct processes

    - by st9
    Hi, On my Fedora Core 9 webserver with kernel 2.6.18.8, init isn't reaping zombie processes. This would be bearable if it wasn't for the process table eventually reaching an upper limit where no new processes can be allocated. Sample output of ps -el | grep 'Z': F S UID PID PPID C PRI NI ADDR SZ WCHAN TTY TIME CMD 5 Z 0 2648 1 0 75 0 - 0 exit ? 00:00:00 sendmail <defunct> 1 Z 51 2656 1 0 75 0 - 0 exit ? 00:00:00 sendmail <defunct> 1 Z 0 2670 1 0 75 0 - 0 exit ? 00:00:02 crond <defunct> 4 Z 0 2874 1 0 82 0 - 0 exit ? 00:00:00 mysqld_safe <defunct> 5 Z 0 28104 1 0 76 0 - 0 exit ? 00:00:00 httpd <defunct> 5 Z 0 28716 1 0 76 0 - 0 exit ? 00:00:06 lfd <defunct> 5 Z 74 10172 1 0 75 0 - 0 exit ? 00:00:00 sshd <defunct> 5 Z 0 11199 1 0 75 0 - 0 exit ? 00:00:00 sendmail <defunct> 5 Z 0 11202 1 0 75 0 - 0 exit ? 00:00:00 sendmail <defunct> 5 Z 0 11205 1 0 75 0 - 0 exit ? 00:00:00 sendmail <defunct> 5 Z 0 11208 1 0 75 0 - 0 exit ? 00:00:00 sendmail <defunct> 5 Z 0 11211 1 0 75 0 - 0 exit ? 00:00:00 sendmail <defunct> 5 Z 0 11240 1 0 75 0 - 0 exit ? 00:00:00 sendmail <defunct> 5 Z 0 11246 1 0 75 0 - 0 exit ? 00:00:00 sendmail <defunct> 5 Z 0 11249 1 0 75 0 - 0 exit ? 00:00:00 sendmail <defunct> 5 Z 0 11252 1 0 75 0 - 0 exit ? 00:00:00 sendmail <defunct> 1 Z 0 14106 1 0 80 0 - 0 exit ? 00:00:00 anacron <defunct> 5 Z 0 14631 1 0 75 0 - 0 exit ? 00:00:00 sendmail <defunct> Is this an OS bug? misconfiguration? I'm looking for inspiration as to the source of this problem. Thanks

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  • Getting rsync to move file from source to destination ?

    - by fabien-barbier
    Is rsync is a good choice for my project ? I have to : - copy files from source to destination folder via SSH, - be sure all files are copied, - delete source files after copy. - if I have conflict name, I have to rename files. It looks like I can use option : --remove-source-files (to delete source files) But how rsync manage conflict, can I had rules ? Use case on my project : I run scientific calculation on server A and results are inserted in folder "process", for each calculation I have a repository like this : /process/calc1. Now I would like to transfer repository "/calc1" to server B (I get /process/calc1), and delete "calc1" from server A. ...During another calculation I get "/process/calc2" on server A, the idea is also to move "calc2" in "/process/" directory on server B, then I have now on server B : - /process/calc1 - /process/calc2 (and /process/ on server A is empty). How rsync will manage conflict (on server B) if I have another folder like "/process/calc1" in server A after a new calculation (if "/process/calc1" already exist on server B) ? Is it possible to add rules with rsync, and rename "/process/calc1" by "process/calc1R2" in server B ? And so on (ex:calc1R3) ? Thanks.

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  • Making libmagic/file detect .docx files

    - by Jonatan Littke
    As seen elsewhere, docx, xlsx and pttx are ZIPs. When uploading them to my web application, file (via libmagic andpython-magic) detects them as being ZIP. I store the contents of the file as a blob in the database, but naturally I don't want to trust the user with what kind of file type this is. So I would like to trust file for and automatically generate a filename during download. I know one can modify /etc/magic but the format (magic(5)) is way too complicated for me. I found a bug report on the issue at Debian bugs but since it's from 2008 it doesn't seem to be fixed any time soon. I guess my only other alternative is to indeed trust the user (but still store the contents as a blob) and only check the file extension based on the file name. This way I can disallow some extensions and allow others. And when the user re-downloads his file, he can have it in whatever way he uploaded it. But this solution is insecure if the file is shared with others, since you can simply rename the file to allow uploading it. Any ideas? Lastly, I found a list of magic numbers for docx etc, but I'm unable to convert these into the magic(5) format.

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  • Use Apache authentication + authorization to control access to Subversion subdirectories

    - by Stefan Lasiewski
    I have a single SVN repo at /var/svn/ with a few subdirectories. Staff must be able to access the top-level directory and all subdirectories within it, but I want to restrict access to subdirectories using alternate htpasswd files. This works for our Staff. <Location /> DAV svn SVNParentPath /var/svn AuthType Basic AuthBasicProvider ldap # mod_authnz_ldap AuthzLDAPAuthoritative off AuthLDAPURL "ldap.example.org:636/ou=people,ou=Unit,ou=Host,o=ldapsvc,dc=example,dc=org?uid?sub?(objectClass=PosixAccount)" AuthLDAPGroupAttribute memberUid AuthLDAPGroupAttributeIsDN off Require ldap-group cn=staff,ou=PosixGroup,ou=Unit,ou=Host,o=ldapsvc,dc=example,dc=org </Location> Now, I am trying to restrict access to a subdirectory with a separate htpasswd file, like this: <Location /customerA> DAV svn SVNParentPath /var/svn # mod_authn_file AuthType Basic AuthBasicProvider file AuthUserFile /usr/local/etc/apache22/htpasswd.customerA Require user customerA </Location> I can use Firefox and curl to browse to this folder fine: curl https://svn.example.org/customerA/ --user customerA:password But I cannot use check out this SVN repository: $ svn co https://svn.example.org/customerA/ svn: Repository moved permanently to 'https://svn.example.org/customerA/'; please relocate And on the server logs, I get this strange error: # httpd-access.log 192.168.19.13 - - [03/May/2010:16:40:00 -0700] "OPTIONS /customerA HTTP/1.1" 401 401 192.168.19.13 - customerA [03/May/2010:16:40:00 -0700] "OPTIONS /customerA HTTP/1.1" 301 244 # httpd-error.log [Mon May 03 16:40:00 2010] [error] [client 192.168.19.13] Could not fetch resource information. [301, #0] [Mon May 03 16:40:00 2010] [error] [client 192.168.19.13] Requests for a collection must have a trailing slash on the URI. [301, #0] My question: Can I restrict access to Subversion subdirectories using Apache access controls? DocumentRoot is commented out, so it's not clear that the FAQ at http://subversion.apache.org/faq.html#http-301-error applies.

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  • Why is crontab giving "No such file or directory" error when the file DOES exist?

    - by fettereddingoskidney
    I am getting the following three lines in an error message in /var/mail/username after the following job runs in crontab... 15 * * * * /Applications/MAMP/htdocs/iconimageryidx/includes/insertPropertyRESI.php Errors: /applications/mamp/htdocs/iconimageryidx/includes/insertpropertyRESI.php: line 1: ?php: No such file or directory /applications/mamp/htdocs/iconimageryidx/includes/insertpropertyRESI.php: line 3: syntax error near unexpected token `'initialize.php'' /applications/mamp/htdocs/iconimageryidx/includes/insertpropertyRESI.php: line 3: `require_once('initialize.php'); The PHP script I am trying to execute DOES in fact exist, and I have made absolutely sure the spelling is correct several times. I ran a crontab on another script before and it worked just fine...any ideas?? The 2nd & 3rd Errors are from line 3 in the following script (the one I am trying to run with the crontab): <?php require_once('initialize.php'); require_once('insertPropertyTypes.php'); $sDate; if(isset($_GET['startDate'])) { $sDate = $_GET['startDate']; } else { $sDate = ''; } $insertResi = new InsertPropertyTypes('Listing', $sDate, 'RESI'); ?> When I run my script insertPropertyRESI.php in the browser, it runs just fine???? Also, initialize.php and insertPropertyTypes.php are in the same directory as insertPropertyRESI.php I am using MAMP with PHP 5.3.5 thakns for the help :?

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  • Recovering text files in terminal using grep on Mac OS X Snow Leopard

    - by littlejim84
    I foolishly removed some source code from my Mac OS X Snow Leopard machine with rm -rf when doing something with buildout. I want to try and recover these files again. I haven't touched the system since to try and seek an answer. I found this article and it seems like the grep method is the way to go, but when running it on my machine I'm getting 'Resource busy' when trying to run it on the disk. I'm using this command: sudo grep -a -B1000 -A1000 'video_output' /dev/disk0s2 > file.txt Where 'dev/disk0s2' is what came up when I ran df. I get this when running: grep: /dev/disk0s2: Resource busy I'm not an expert with this stuff, I'm trying my best. Please can anyone help me further? I'm on the verge of losing two days of source code work! Thank you

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  • Get sudoers information for all users on a server

    - by Jon Kruger
    I want to collect information on what sudoers actions a user can perform on a server. From what I've read, you can do this with the command sudo -l -U username. However, one server that I have has a slightly older version of sudo (1.6.7p5) and the -U option doesn't seem to exist (I don't own the server so I can't just upgrade to a newer version of sudo). Has anyone ever had to collect sudoers information for all users on a server? How would you recommend doing it?

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  • When does /tmp get cleared?

    - by John Lawrence Aspden
    I'm taking to putting various files in /tmp, and I wondered what the rules on deleting them are? I'm imagining it's different for different distributions, and I'm particularly interested in Ubuntu and Fedora desktop versions. But a nice general way of finding out would be a great thing. Even better would be a nice general way of controlling it! (Something like 'every day at 3 in the morning, delete any /tmp files older than 60 days, but don't clear the directory on reboot')

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  • How to configure sudoers with path wildcards?

    - by C. Lee
    I need sudo for a command for any path under a particular area. Example: sudo mycommand /opt/apps/myapp/... What is the sudoers syntax to allow this command to run in any path that falls under /opt/apps/myapp? This is Solaris 10 sudo. Thank you for your reply, but I don't need wildcards for the path to the commands, but wildcards for the arguments for the commands. For example, we want to do something like... sudo mycmd /opt/userarea/area1 sudo mycmd /opt/userarea/area1/area2 sudo mycmd /opt/userarea/area1/area2/area3 So far, using wildcards for the arguments in sudoers look like this: /opt/userarea/* /opt/userarea/*/* And it seems like if we want to have N levels of directories, then we need N lines in sudoers! Is there a better way to include all N levels in one line in sudoers? Thanks.

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  • Is there a way to see any tar progress per file?

    - by Svish
    I have a couple of big files that I would like to compress. I can do this with for example tar cvfj big-files.tar.bz2 folder-with-big-files The problem is that I can't see any progress, so I don't have a clue how long it will take or anything like that. Using v I can at least see when each file is completed, but when the files are few and large this isn't the most helpful. Is there a way I can get tar to show more detailed progress? Like a percentage done or a progress bar or estimated time left or something. Either for each single file or all of them or both.

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  • How to automatically execute a shell script when logging into Ubuntu

    - by Mike Rowave
    How do I get a script to execute automatically when I log in? Not when the machine starts up, and not for all users, but only when I (or any specific user with the script) login via the GNOME UI. From reading elsewhere I thought it was .bash_profile in my home directory, but for me it has no effect. When I manually execute it in a terminal window by typing ~/.bash_profile it works, but it won't run automatically when I log in. I'm running Ubuntu 11.04. The file permission on my .bash_profile is -rwx------. No .bash_profile existed in my home directory before I created it today. I seem to remember older versions of Linux having a .profile file for each user, but that doesn't work either. How is it done? Do I need to configure something else to get the .bash_profile to work? Or does the per-user login script need to be in some other file?

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  • syslog ip ranges to specific files using `rsyslog`

    - by Mike Pennington
    I have many Cisco / JunOS routers and switches that send logs to my Debian server, which uses rsyslogd. How can I configure rsyslogd to send these router / switch logs to a specific file, based on their source IP address? I do not want to pollute general system logs with these entries. For instance: all routers in Chicago (source ip block: 172.17.25.0/24) to only log to /var/log/net/chicago. all routers in Dallas (source ip block 172.17.27.0/24) to only log to /var/log/net/dallas. Finally, these logs should be rotated daily for up to 30 days and compressed. NOTE: I am answering my own question

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  • Replacing quotes in a file

    - by Matthijs
    I have a large number of large semicolon-separated data files. All string fields are surrounded by double quotes. In some of the files, there are extra quotes in the string fields, which messes up the subsequent importing of the data for analysis (I'm importing to Stata). This code allows me to see the problematic quotes using gnu-awk: echo '"This";"is";1;"line" of" data";""with";"extra quotes""' | awk 'BEGIN { FPAT = "([^;]+)|(\"[^\"]+\")"}; {for ( i=1 ; i<=NF ; i++ ) if ($i ~ /^"(.*".*)+"$/) {print NR, $i}}' 1 "line" of" data" 1 ""with" 1 "extra quotes"" but I do not know how to replace them. I was thinking of doing the replace manually, but it turns out that there are several hundred matches in some of the files. I know about awk's -sub-, -gsub-, and -match- functions, but I am not sure how to design a search and replace for this specific problem. In the example above, the respective fields should be "This", "is", 1, "line of data", "with", "extra quotes", that is: all semicolons are separators, and all quotes except for the outermost quotes should be removed. Should I may be use -sed-, or is -awk- the right tool? Hope you can help me out! Thanks, Matthijs

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  • options' default values of autoconf ./configure scripts

    - by hamstergene
    Having run ./configure --help there is a list of options that can be tweaked in the future build, for example --enable-luajit Enable LuaJit Support --disable-env clearing/setting of ENV vars Though any option can be used with enable and disable prefix, some are presented as --enable-me and other as --disable-me in the help output. Is this supposed to hint me of default values, and if yes, how do I to figure them out? Because either way makes sense to me: luajit is disabled by default and therefore it is presented as --enable-luajit so I can enable it by conveniently copy-pasting it from help output to command line. being listed with --enable in help output indicates that luajit is enabled by default.

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  • Running rsync on network connect

    - by user40495
    I have one mac which is always on and is my main computer. I also have a MacBook and I'm trying to Sync my iphoto library. So I can successfully use rsync to sync files. I'm using a cron to have it run once a day. In reality the macbook isn't always on, so I'm looking for a way to run rsync when ever the two computers are connected on the same wifi network. So I'm guessing the best place is to somehow run rsync when the airport is connected. Whats the best way

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  • Running rsync on network connect

    I have one mac which is always on and is my main computer. I also have a MacBook and I'm trying to Sync my iphoto library. So I can successfully use rsync to sync files. I'm using a cron to have it run once a day. In reality the macbook isn't always on, so I'm looking for a way to run rsync when ever the two computers are connected on the same wifi network. So I'm guessing the best place is to somehow run rsync when the airport is connected. Whats the best way

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