5
votes
1answer
2k views

Why is expect's interact command not working?

I am trying to automate gdb with expect. My script will start gdb, do some initialisation, and then pass the control to the user. Expect's interact command seems like the perfect tool for the job. ...
0
votes
1answer
271 views

Bad SIP URI in To header field

We are creating Asterisk<->Lync trunk. The Asterisk is under providers control. I am in charge of Lync. I'm slightly familiar with Asterisk. We created trunk. Everything was fine until provider ...
0
votes
1answer
120 views

Why env variable are not visible while starting a service

I am wondering why during service start up environment variables are not visible. To be more precise: I created service startup scrip according to LSB spec which starts some java process. For this ...
8
votes
0answers
1k views

Solaris SMF vs Linux Upstart [closed]

I'm in the process of learning Upstart after first having learned SMF. Naturally I'm assuming that they fulfill the same purpose but I'm aware that this is where I'm wrong. Ideally I was hoping ...
1
vote
1answer
865 views

What could cause a run time remounting of my /var partition to be read only?

I have a buildroot generated embedded linux system (x-86 geode processor) using an initramfs but with /var and /etc mounted onto a compact flash device using the default mount options specified in ...
1
vote
2answers
2k views

How to exclude hidden files in recursive chmod?

I am having to do chmod -R 755 some_dir where 'some_dir' contains '.git' folders. Is there any way I can exclude hidden files and folder when doing recursive chmod? Note: chmoding .git folder is ...
1
vote
0answers
54 views

Mysql user privileges : Only CREATE table

I am trying to create a user who will be able to manage all databases without the right to CREATE and DROP databases. I have been using the following link : ...
1
vote
1answer
211 views

failure in connecting to my server through ssh

My goal: I want to be able to ssh to my workstation from external client. My workstation(in the following also referred as server) is on a lan. Its ip address on this lan is obviously different from ...
1
vote
2answers
2k views

DNSCrypt, Unbound and DNSSEC

I would like to have an encrypted DNS queries + a DNS Cache + Domain Name System Security Extensions (DNSSEC) . I used this bash script to install DNSCrypt and I choosed to use dnscrypt.eu servers : ...
3
votes
2answers
120 views

When do `sort -k 2,3b` and `sort -k 2,3` differ?

The POSIX description of the -b flag for the sort command is Ignore leading characters when determining the starting and ending positions of a restricted sort key. I can understand the use for ...
4
votes
3answers
506 views

Transactional UNIX shell for file system changes

It is easy to make a mistake when copying (cp), moving/renaming (mv), removing (rm/rmdir), creating dirs (mkdir), and changing file permissions (chmod). It would be nice to have a log to view before ...
3
votes
1answer
317 views

Why does agetty ask for the username itself?

From the man page: agetty opens a tty port, prompts for a login name and invokes the /bin/login command. It is normally invoked by init(8). But if you run login without any argument, it ...
1
vote
0answers
78 views

can't access account with empty password

I used the passwd command to remove the password for my account. Now, when I try to use su to log in to my account, it won't let me enter an empty password. So now, I can't access my account. Any ...
0
votes
1answer
129 views

No sound since I first pressed “mute” on my keyboard

I have a problem with sound. I once pressed the mute button on my keyboard and since then I couldn't do anything to get the sound back on my headphones (obviously, including pressing mute again). I ...
4
votes
1answer
2k views

copy a single file from local Git repository

I need to copy a SINGLE FILE from LOCAL REPOSITORY to my machine, not git-pull or git-fetch, how can i do it? Is it possible to get it via hash ? such as a3ea2118bf1c5e2c6aa0974d0b6ff7415bd044ef ?
2
votes
3answers
2k views

Editing Spec file in RPM

I'm trying to edit a spec file which always fails when I try to install it on other computer using RPM. I'm using CentOS. Here is the error. error: Failed dependencies: perl(ActsUtil) is needed by ...
1
vote
3answers
124 views

Terminal editor with “project pane”

Most GUI text editors have a "project pane" that's just a directory tree that you use to choose what file you're currently editing. What's a terminal text editor (or a VIM/emacs plugin) with this ...
0
votes
3answers
391 views

sed - change lines that start with one given word and end with another?

For example, given: $ cat test001.txt this is a test bucket bucket line not this one. bucket lein endy bucket and others endy and a ttest How can I change the lines that start with "bucket" ...
2
votes
3answers
115 views

Whats a simple Window Manager to use for web development? [closed]

I'm looking for a really simple window manager that will allow me to run a browser, a terminal and not much else. I normally just use chrome along with gnome-terminal and a series of gnu screen ...
4
votes
1answer
7k views

Extract single file from tar to other folder

I've searched for multiple forums for this questions and have seen different answers but so far, nothing have worked yet even from the ones I've seen here. I want to extract a single file from a tar ...
3
votes
2answers
5k views

What does ifup do when “/etc/network/interfaces” has an invalid netmask address?

The interfaces file looks like below: auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 192.168.0.130 netmask 250.255.255.0 gateway 192.168.0.254 As you can see ...
3
votes
2answers
2k views

How do I fix iptables in ChromeOS?

Using the shell in chrosh in ChromeOS I followed some (apparently terrible) advice to flush my IP tables. using the command sudo iptables -F I am now unable to connect to the internet at all. All ...
1
vote
1answer
604 views

Cannot mount filesystem under luks. Device does not exist

I made one big luks device and re-used it on my debian install, then i ran into some boot problems and i need to acess the filesystem. The problem is, i decrypt the luks device and when i try to ...
4
votes
1answer
244 views

Zsh completion that is insensitive between `_` and `-`

I don't like typing underscores, and would like to type a dash instead, and have zsh autocompletion treat it like it could be either a dash or an underscore. Is this possible with built-in zsh ...
2
votes
0answers
77 views

Keyboard-bound applications in Openbox

Following the template of another stack user I've bound a keyboard shortcut to toggle an application between hidden and fullscreen. The only problem is, no matter what application I apply it to, I ...
2
votes
3answers
2k views

Running tcpdump, tee and scp

I'm trying to run the following: $ tcpdump -l -X -i eth1 -n tcp port <port> | tee capture.txt | \ scp capture.txt root@10.3.3.227:/home/checker/ tcpdump -l -X -i eth1 -n tcp port ...
1
vote
1answer
3k views

/dev/console dynamic redirection

Is it possible to dynamically redirect all data sent to /dev/console into something else (for example - to /dev/null, /dev/tty9 or even /dev/null)? Of course, it can be done statically via ...
2
votes
3answers
11k views

I don't see .bashrc in my home directory but want to make a permanent change to my path

I am trying to add a location to my $PATH variable on a Mac running OS X. I am following this tutorial, which says to edit the .bashrc file. I don't see this file in the home directory even when I do ...
1
vote
1answer
3k views

Unable to get Wireless working during Arch Linux install

I'm following the Arch Linux install guide here: https://wiki.archlinux.org/index.php/Beginners%27_Guide I'm installing from a live disc. I've just used pacstrap to install the base system. I then ...
5
votes
3answers
206 views

What is the difference between [.]* and '.*' for command 'find -name'?

My goal is to find all files or directories in a filesystem that start with a dot (.), for example .gnupg. So I came up with the command: find -name '.*' Checking on the Internet, I saw some hints ...
6
votes
2answers
6k views

Need to get the difference between two time in seconds

The following two variables contain the start time and the end time , need to get the difference between these two time in seconds start_time=06:07:25 end_time=07:02:08 Desired Output diff_time= ...
13
votes
4answers
3k views

How am I supposed to edit files on a network with Vim?

Currently I'm doing it by SSHing into a server, and executing Vim on the server. This has the benefit of not having to deal with cumbersome syntax of opening files from a remote server over SCP, and, ...
0
votes
2answers
582 views

Cannot create root jail

I just tried to play around with chroot command only for testing purposes, in order to create a temporary root jail, but I didn't managed to. The platform is CentOS 6.4. and I have done it numerous ...
4
votes
4answers
767 views

How to Prefix a column values with an apostrophe ( ' )?

I have a CSV file with multiple columns and 1000's of records, I need to prefix all the values of one of the columns (lets say 2nd column) with an apostrophe ' except in the first line or header line, ...
6
votes
4answers
232 views

Is it shell portable to run a command on the same line after variable assignment?

Is there any standard that covers the portability of running a command after variable assignment on the same line? APPLE="cider" echo hi How portable is something like that? Where will it work and ...
12
votes
4answers
2k views

How to report “sed” in-place changes

When using sed to replace strings in-place, is there a way to make it report the changes it does (without relying on a diff of old and new files)? For instance, how can I change the command line ...
6
votes
1answer
1k views

`unbuffer` or `stdbuf` for removing stdout buffering?

Is there a difference between unbuffer(1) and stdbuf(1)? From what I gather, unbuffer makes more than the "best effort" of calling the libc function set(X)buf at the beginning, and then letting things ...
3
votes
1answer
183 views

How do rolling releases work?

In my understanding of linux distributions, you get notified of updates, then by a simple click or with a bunch of commands you can install them. These may be patches or minor version updates of ...
2
votes
1answer
919 views

Debian package naming convention?

It's all very confusing. There are different examples out there, for e.g.: <package-name>_<epoch>:<upstream-version>-<debian.version>-<architecture>.deb source: ...
0
votes
1answer
182 views

How can I get sublime text to run from the command line?

I am trying to get sublime text to run from the command line using this tutorial. It says to run this command: ln -s "/Applications/Sublime Text 2.app/Contents/SharedSupport/bin/subl" ~/bin/subl ...
1
vote
1answer
3k views

Log off user using terminal

I am having a situation where I logged in to a RHEL 5.6 system and started VirtualBox. After closing the VirtualBox, I am having a situation where the menu bar which has the option to shutdown or lock ...
1
vote
1answer
394 views

“df -h” and “fdisk -l” in amazon server [closed]

When you do a df -h you can see: Filesystem Size Used Avail Use% Mounted on /dev/xvda1 7 . 9G 1.7G 6.2G 22% / But, when you do fdisk -l you see: Disk /dev/xvda1: 26.8 GB, 26843545600 bytes 255 ...
0
votes
0answers
234 views

Can't login into the desktop

I can't login into my account "Magicbox". xserver keeps kicking me out of there. I'm not sure what's the issue, but I reinstalled xserver, and it had no effect. Any advice? SPECS: Asus Eee PC ...
3
votes
2answers
1k views

talkd doesn't print a message

I wanted to use talk with my brother (we both have Debian jessie). So i installed inetutils-inetd, inetutils-talk, and inetutils-talkd. Now i wanted to try wether it works. So i created a testuser ...
28
votes
3answers
17k views

How much RAM does the kernel use?

This question is motivated by my shock when I discovered that Mac OS X kernel uses 750MB of RAM. I have been using Linux for 20 years, and I always "knew" that the kernel RAM usage is dwarfed by X ...
0
votes
3answers
28k views

How to install Gnome 3.10 on Debian

I am using Debian Testing (Sid) and i want to install Gnome 3.10. How can i do it? Is there a repository I can add in order to upgrade? I have searched a lot and the only thing I have found is the ...
2
votes
1answer
278 views

2 or more programs in same USB serial converter

Having a network of lets say 10 devices in RS-485, connected to the linux PC with a RS-485 to USB Converter. Already there is a C program interacting with the serial converter at /dev/ttyUSB0. My ...
1
vote
4answers
235 views

LD_PRELOAD or similar to warn user about modifications to a file?

I am running a (complex) script that seems to modify at some point a file. I would like to get warnings whenever the script / program tries to write, chmod, chown or perform any other attempt that I ...
3
votes
2answers
17k views

List all available ssl ca certificates

My git client claims error: Peer's Certificate issuer is not recognized. That means it can not find the corresponding ssl server key in the global system keyring. I want to check this by looking at ...
3
votes
3answers
25k views

How to send AT commands to a modem in Linux?

In Linux (Ubuntu) I am trying to send AT commands to a modem at /dev/ttyACM0. I tried to do it as: sudo socat - /dev/ttyACM0 but when typing anything I just get a line repeating this command (I ...

15 30 50 per page