0
votes
1answer
439 views

Force users to change email password every six months

I'm going to build an experimental mail server with Postfix + Dovecot and Mysql for user accounts. The server will offer SMTP + POP3 + IMAP. Is there a way to force users to change their mail account ...
1
vote
2answers
911 views

Remove all packages in a text file via apt-get

I have a text file with a package on each line. How can I remove all the packages in that text file from the system? Also, if one package cannot be removes/wasn't installed in the first place can I ...
1
vote
2answers
3k views

How to create a md5-file for every folder in a drive recursivley?

I'm searching for a script which creates a md5 chechsum file for every single folder inside drive recursivley? I do have a copy of md5deep on my machine but I'm not that good in scripting bash.
4
votes
1answer
3k views

Flush 'tail -f' buffer?

I'm using the following statement (simplified version): tail -f -c+1 <filename> in order to pipe a file to a process. What I've found, though, is that there is a number of lines at the end ...
7
votes
1answer
5k views

Is there a way to deactivate Buffer overflow protection on my machine?

I want to do some experiments with buffer overflows on my various virtual machines, including (but not limited to) Debian 6, Ubuntu 12.04, Fedora 16, but every time I try to execute the buffer ...
17
votes
3answers
12k views

Piping from grep to awk not working

I am trying to grep the ongoing tail of file log and get the nth word from a line. Example file: $ cat > test.txt <<EOL Beam goes blah John goes hey Beam goes what? John goes forget it Beam ...
3
votes
1answer
969 views

How do I detach a process from its parent? [duplicate]

Possible Duplicate: How can I disown a running process and associate it to a new screen shell? The problem is that the process is not a job inside of my active shell (as I've logged in from ...
1
vote
3answers
13k views

How to check what is running in a server?

Is there any particular command to find out what servers (like: apache2, mysql-server, backup-server etc) are running inside a dedicated server? If I will reboot my dedicated server will they all ...
2
votes
1answer
272 views

Control character STTY issue

I am changing control character (e.g- ^C) using stty intr ^_ under root privileges. It changes successfully. But when I am closing terminal and opening terminal again to check whether same ...
1
vote
1answer
204 views

SSH login to remote machine from another remote machine - How to manage connections?

Due to some security policy I had to ssh into a remote machine using another remote machine to which I ssh-ed. Here is the situation. I have access to BSD box at work and the access is only available ...
1
vote
1answer
126 views

How to setup backup if the filesystem is read only

My remote server file system is read-only & its because my hard disk is broken .I want to take backup for taking any further action. Is it possible to setup a manual backup for the affected ...
2
votes
1answer
2k views

export PATH only once per login in zsh

I need to alter my PATH variable so I put export PATH=$PATH:somedir in my $HOME/.profile which is sourced by my $HOME/.zshrc. This works, yet whenever I open a new terminal (urxvt in X11), .zshrc ...
2
votes
3answers
721 views

Are there websites that allow one to search for which package contains a particular file?

I want to write some generic instructions on how to find the package that installs a particular file (the exact context is TeX packages: find the package in the Unix distribution that contains a ...
4
votes
2answers
1k views

Start Vim as my user with root privileges

I have my custom Vim files in ~/.vim and settings in ~/.vimrc. However, sometimes I have to edit some files in /etc and such. If I start Vim like this: $ sudo vim /etc/rc.conf I lose my config ...
4
votes
1answer
805 views

How to “jail” a user account's network capabilities on Linux?

Linux box a is connected to a home DSL line with dynamic DNS registration, hosting a tmux session to which multiple clients connect in read-only mode over SSH. All users connect using the same ...
4
votes
1answer
2k views

How to decrypt single EncFS encrypted files?

Is it possible to decrypt single EncFS encrypted files with access to .encfs6.xml configuration file and without the proper directory structure it was created? With a little help from google I found ...
3
votes
1answer
1k views

Route VPN Through Proxy

I'm on a network which requires out-going traffic to pass through an http proxy. I would like to connect to my remote VPN through the proxy, but am not sure how to do this. Any thoughts? I am ...
0
votes
1answer
2k views

Not able to execute system files

I was trying to install ruby with : sudo apt-get install ruby1.8 output: W: Not using locking for read only lock file /var/lib/dpkg/lock E: Unable to write to /var/cache/apt/ E: The package lists ...
1
vote
1answer
155 views

Using join with two files fails on larger file sizes

I am having some issues with a script that is using join to join two files. Eaxmple input files contains lines like this: Here are the input file and the output of the join command: ...
2
votes
1answer
429 views

referring to files inside a jar or zip files in Linux

I am wondering if I can refer to files inside JAR or ZIP files using URLs. I mean, without using a tool (such as the Java Jar utility) but just at the operative system level. For example, if I have a ...
4
votes
1answer
2k views

Umount device after bind mounting directories: is it safe?

I have a home partition which is shared by mulitple distros on the same box. I'm using bind mounts from fstab. Each Linux install has something like this: UUID=[...] /mnt/data ext4 ...
0
votes
2answers
2k views

Deleting many files except one type [duplicate]

Possible Duplicate: Deleting all files in a folder except files X, Y, and Z I am writing a script to compile many .tex files. After that, many auxiliaries files were created. So, I would ...
1
vote
3answers
3k views

Curl not found (Glype)

I'm trying to install proxy software called Glype on my server. It continues to tell me that "Glype requires cURL/libcurl". I have the latest version of curl installed. Why might this be happening? ...
1
vote
5answers
8k views

bash execute read command from file

After some manipulations, I got the file with commands that I would be glad to be able to execute. Input file (name of file is inp2.txt): "02 - Beautiful Emptiness.mp3" "02 - Come. mp3" "02 - Go ...
6
votes
3answers
508 views

Effect of compiling from source on already installed applications

I use Ubuntu 12.04. Say I have installed package x from the repository (with all its dependencies) at version 1.7 but I need some functionality that is only available in version 1.8, so I download the ...
20
votes
2answers
11k views

how can I use bash as my login shell when my sysadmin refuses to let me change it

The unix sysadmin where I'm working is reluctant to give me access to change my login shell from ksh to bash. He has given various excuses, the funniest being that since they write all their scripts ...
1
vote
3answers
2k views

how to sum output of awk or other expression with xargs

Suppose i have the following bash shell script: #!/bin/bash export count=0; for i in `ls ./mydoc` ;do pdfinfo ./mydoc/$i | egrep Pages |awk {'print $2'} |xargs -+ $count ; ...
0
votes
2answers
215 views

Getting data from matching list

list.txt GETID_17049_knownids_1/2_Confidence_0.625_Length_2532 GETID_9248_knownids_6/10_Confidence_0.439_Length_2474 GETID_11084_knownids_3/3_Confidence_0.600_Length_1451 ...
2
votes
2answers
572 views

AWK match string, not Regex

How do I match a string with AWK? Say I have the string [(*.+ it should only match strings containing the string [(*.+. The string is entered by the user, so if you know a cli utility that can ...
2
votes
0answers
725 views

Compile parameters for MIPS based codesourcery toolchain?

I installed codesourcery cross compile toolchain for mips32 architecture on my WIN 7 machince. I want to first compile a simple 'factorial' binary for my router which is based on MIPS32. From little ...
3
votes
1answer
904 views

Changing firewall settings after installation of CentOS via kickstart

I was trying to install CentOS 6.3 via Windows Deployment Server. And to automate the installation process I used kickstart file in which i provided various details required during installation.Then i ...
5
votes
1answer
13k views

Not able to lock /var/lib/dpkg/lock (read only)

I was trying to install ruby on my remote server(this is a vm machine(debian) in a esxi server . ) I got this error: The Command: sudo apt-get install ruby1.8 Error : W: Not using locking for read ...
1
vote
2answers
717 views

is it possible to use w32codecs on a 64bit system?

Is there any chance I can load binary codecs on 64bit arch linux ? I have few .dat files that works great under 32bit windows xp, with smplayer (after downloading codecs), but on 64bit Linux, I got ...
4
votes
1answer
752 views

What process created this window with no PID associated? [duplicate]

Possible Duplicate: What process created this X11 window? I need to kill a process that spawned a window which seems to have no PID associated with it. At least that is what xdotool says: ...
3
votes
2answers
2k views

exec < filename - what does this do?

I have found the following code snippet (sh): TESTFILE=$TEST_PATH/test.out if [ -f $TESTFILE ] then exec < $TESTFILE else echo "$TEST_PATH: no test.out file" fi ...
3
votes
0answers
377 views

assigning a multiline variable (tcsh prompt) to another

For tcsh, I have a prompt that is multiline: set prompt = "%/\\ %n@%m[%h]% " This shows the cwd on one line and then the user/host on second line. However, with this, I cannot make a copy of that: ...
6
votes
2answers
14k views

How to export LD_LIBRARY_PATH to all users and system services

I want to export LD_LIBRARY_PATH to system services and all users. System services are run before login, so .bashrc is not applicable. How to achieve this?
3
votes
3answers
674 views

How to remove a trailing CRLF from a file?

I have a binary file with a trailing CRLF (2 bytes total) that I want to remove. How should I do it? Please note that I'm using busybox and I don't have perl.
1
vote
2answers
413 views

How to Download from an FTP site

I am using: SCO_SV scosysv 3.2 5.0.7 i386, and I am trying to download ssh and install it. But the only way I can do it, is by using FTP. I have tried the following: # ftp ftp> ftp2.sco.com ...
2
votes
1answer
4k views

u-boot disable DHCP requests with setenv

I am trying to disable the DHCP requests after the Kernel was loaded. Using freescale imx25 dev-board in standard config. In u-boot, I find two lines ip=dhcp: MX25 U-Boot > pri bootdelay=3 ...
2
votes
0answers
502 views

Delayed write scenario

I was reading "The Design of the UNIX Operating System" by Maurice J. Bach and had a confusion. Suppose a process requests for a buffer for disk block number 18. The kernel searches for a free buffer ...
2
votes
2answers
157 views

How to constrain the resources an application can use on a linux web server

This is the situation: I have a PHP/MySQL web application that does some PDF processing and thumbnail creation. This is done by using some 3rd party command line software on the server. Both kinds of ...
2
votes
1answer
506 views

affordable cloud space for a duplicity backup? [closed]

I'm searching for around 1TB of cloud space for backup using the Unix/Linux duplicity backup tool? Are there any recommendations?
2
votes
0answers
140 views

How to find current chroot jail path on Linux <2.6.26

While running kernel 2.6.26 or newer it's possible to get the path of the current chroot jail by comparing the mountinfo of the current process and the init process. Is there a way to get the same ...
2
votes
3answers
575 views

Start Akregator in system tray

I have added Akregator to the list of startup applications, but it opens up window every time I boot into my system. Is there a way to make it not open the window and start silently in the system ...
6
votes
3answers
565 views

E-Mail client in linux which allows to search encrypted mail

Is there an E-Mail client for linux which allows to search old gpg encrypted mails (i.e. find all mails which contain a particular keyword in the body, including the encrypted ones).
4
votes
1answer
509 views

How to compare attributes of two files on Linux ext4

cmp(1) will of course tell me if the contents of two files are identical, but in order to test restoring from backups I also wanted to compare the relevant (!) file attributes. So if I did something ...
1
vote
4answers
6k views

sed/awk/perl - delete spaces between two strings/words + solaris 10

please advice how to delete the spaces between "=" to the value/string ( after the "=" character) , should be implemented by awk or sed or perl command and command must to fit for solaris OS , ( ...
4
votes
3answers
748 views

Clarify File Permissions

I've been searching for information about file/directory permissions, and I keep finding the same basic principles. What I can't find anywhere is a rationale for determining what permissions to give ...
5
votes
4answers
4k views

Pgrep returns mutiple PIDs

My script accepts a process name as an input and kills it, I tried using pgrep but its returning two PIDs , one for the process which is running and one for the script which accepts the process name ...

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