1
vote
0answers
288 views

Citrix XenServer, all packages appear to be 32bit

I'm hoping to use Citrix XenServer for a group of 4/5 machines. One of these machines has 18TB of storage (after RAID5 is taken into account). I've installed XenServer and mkfs.ext3 is the only ...
5
votes
5answers
4k views

logic behind deleting files where user does not have right to write [duplicate]

When I create a file with no write permissions in my home directory: $ umask 777; touch testfile $ ls -ln testfile ---------- 1 1000 1000 0 2014-03-21 16:52 testfile $ ..then I'm still easily able ...
1
vote
2answers
4k views

Error stat of log failed: Permission denied during LogRotation

After installing a new CentOS 6.0 server, logrotate was working absolutely fine. Then one day due to a kernel panic, the server had to be hard booted, and ever since log rotation is not rotating the ...
19
votes
4answers
34k views

Pass shell variable as a /pattern/ to awk

Having the following in one of my shell functions: function _process () { awk -v l="$line" ' BEGIN {p=0} /'"$1"'/ {p=1} END{ if(p) print l >> "outfile.txt" } ' } , so when called as ...
8
votes
7answers
2k views

List all binaries from $PATH

Is there one-liner that will list all executables from $PATH in bash.
1
vote
1answer
133 views

How can I tell which ports have been used for reverse SSH tunnels?

I have two machines, client and server. client has created a reverse-tunnel on server with something like ssh -R 12345:localhost:12345 server. When logged into server how could I find ports which ...
4
votes
1answer
223 views

Reporting cpu hogs

Once in a while some program (ok, usually it's firefox) will start eating up nearly 100% of a processor's cpu time, heating up the processor and driving down by laptop's battery life. Since it's not ...
2
votes
1answer
138 views

Can SSH proxy requests from the remote system through my local system to the internet?

I have SSH access to a *nix system over a VPN. I need to install some packages from the distro's repos to that system but that system does not have general access to the internet to reach the repos. ...
2
votes
0answers
155 views

Automatically memtest and then boot

Is there some way to reboot server, so it runs memtest (say, 1 or 2 passes) and then reboots back to Linux and writes report to some log? This feature in Windows Server 2012 helped me to diagnose bad ...
1
vote
1answer
1k views

Adding timestamp before each STDOUT line inside perlscript

In a perl script, I am capturing all the STDOUT and STDERR using the below code: open STDOUT, '>>', "$log_file" or die "Can't redirect STDOUT: $!"; open STDERR, ">&STDOUT" or die "Can't ...
3
votes
1answer
284 views

Need help decoding bash script

Have following line in bash script, parsing input arguments: ((10#$2 > 0)) 2>/dev/null && shift 2 || shift Basically it helps handling parameters with optional integer subparameter. ...
0
votes
2answers
522 views

Reversing 1-D array

I'm trying to reverse a 1-D array which contains a list of files. I followed http://stackoverflow.com/questions/13360091/how-to-reverse-array-in-bash-onliner-for-loop to be the code. But this is not ...
1
vote
1answer
106 views

Debian7, date and time formats to Hungarian

how can I change (only) the date and time formats to Hungarian on a Debian7 (but the language I want to keep English)... I've tried to change like this: /etc/defaults/locale # File generated by ...
5
votes
2answers
3k views

Why does pam_mount ask for password?

I used the pam-auth-update tool in order to enable some pam configuration profiles: PAM configuration PAM profiles to enable: [*] encfs encrypted home directories [*] Unix ...
0
votes
2answers
615 views

How to work with dfspace command?

I am trying to execute dfspace command but I am getting the error root@Kali:~# /dfspace -bash: /dfspace: No such file or directory
1
vote
1answer
347 views

Partially remove formatting from text in clipboard

I need to delete the formatting in the text contained in the clipboard, but keeping some elements. The most important are the "new line" characters. In a simple script, the effect of variable=$(xsel ...
1
vote
1answer
121 views

Using 'find' to email me those files modified recently

I'm using 'find' at the end of a script to email me any .log files in the current directory that have been modified in the last 6 hours. I need this because the file names change so I can't be any ...
0
votes
1answer
1k views

ZSH autocompletion gives seemingly random errors after some time

My zsh autocompletion is broken in a strange way. For clean logins everything works but after some time I will get seemingly random autocompletion errors, for different "kinds" of autocompletion. ...
1
vote
1answer
1k views

location of the “disk identifier”

According to Wikipedia, "disk signature" is a 32 bit value stored in MBR on bytes 440 - 443. According to fdisk, my "disk identifier" is 00043afc in hex: # fdisk -lu /dev/sda | grep identi Disk ...
2
votes
2answers
5k views

Httpd can't access file even after setting httpd_sys_content_t

I'm currently learning SELinux. I was following the instructions in SELinux doc of RedHat. I indeed succeded after typing the following commands: mkdir /mywebsite //add something to ...
1
vote
1answer
36 views

“ls -lH” not following the link but “ls -lH linktofile” following it

In a directory there is a link to some other file in some other directory. If I give ls -lHh command with no arguments, ls does not resolves the symbolic link but if I give ls -lHh * or ls ...
1
vote
3answers
3k views

Change date only for a single non-root user in Linux [duplicate]

Is it possible to change date only for a specific user (non-root) in Linux ? If possible, How to do it ? And it would be great if someone can point out the impact of doing so. EDIT Putting my ...
2
votes
4answers
2k views

Parsing process command-line arguments from pargs in a shell script

I get list of PIDs in my bash scripts (Java processes) and have to analyze their command-line arguments to determine which instance of server each PID corresponds to. At the moment I do it that way ...
2
votes
4answers
6k views

“blocks” column in output of fdisk

On my machine, fdisk -lu /dev/sda displays following output: Device Boot Start End Blocks Id System /dev/sda1 * 2048 73947135 36972544 83 Linux /dev/sda2 ...
4
votes
2answers
238 views

Concatenate all commentary about source files in a directory tree

I am working on a multitude of projects involving codes in Fortran. They are in a directory tree involving 10 to 20 folders, each of the codes is in a 'src' folder. What I am looking for is a simple ...
1
vote
3answers
3k views

I want to create a zipped output file while keeping the original one

I am new to unix command and I have got one scenario that, I want to create a zipped output file while keeping the original one. I want to do it from Informatica end by using command task or session ...
-2
votes
1answer
72 views

Using If statment [closed]

I'm trying to use an If/else statement in bash. I'm confused which is the correct syntax. if [ "$NUMBER_dcn" -gt $NO ] then dir_dcn='/mnt/md0/capture' fi or if [ "{$NUMBER_dcn}" -gt ...
1
vote
3answers
486 views

How to automatically add my program to gnome panel

I wrote a program like dropbox seen in pic. I want to add the icon as that of dropbox. How could I do that? How to automatically do that?
3
votes
1answer
232 views

Equivalent of memmove on files: copy a range of bytes to an earlier position

What is an equivalent of memmove on files with the same input and output file, which works with large files? dd works when I move the file contents towards the right, but not if I move the contents ...
2
votes
2answers
343 views

Buffer each line locally on a serial terminal

I use kermit to connect to a device over serial. The device is quite "dumb" and doesn't have any fancy shell. It is really just receiving commands over serial and sending outputs back over serial. ...
2
votes
3answers
9k views

alternative to nslookup in rhel7?

nslookup does not come preinstalled in RHEL 7 Beta. I noticed even dig and host was not pre installed. I read couple of links which mentions nslookup is dead/deprecated, so is there an alternative for ...
4
votes
4answers
524 views

How to switch the first letters of two words?

$ echo 'foo bar' | sed SOMEMAGIC boo far $ echo 'one two' | sed SOMEMAGIC tne owo Q: in general, how can I replace the "b" from the "bar" to the "f" of the "foo"? And in reverse too, replace the "f" ...
0
votes
1answer
561 views

installation causing error

I have downloaded g2ipmsg from http://www.ipmsg.org/archive/g2ipmsg-0.9.6.tar.gz while installation this package it causing some error checking for G2IPMSG... configure: error: Package ...
0
votes
0answers
17 views

Is it possible to remount USB drive after unmounting in Thunar? [duplicate]

After unmounting a USB disk it's like it was never connected in the first place: /dev/sdX is gone. dmesg reports "usb 9-3: USB disconnect", but /sys/bus/usb/devices/9-3 is not there. ...
4
votes
1answer
2k views

Monitoring Linux user activities and auditing them

var/log/secure provides us below information : Mar 20 08:07:07 testing sshd[29749]: Accepted password for oracle from 10.51.1.12 port 49239 ssh2 Mar 20 08:07:07 testing sshd[29749]: ...
3
votes
1answer
642 views

What is the modern equivalent of reading `/dev/audio`?

Recently my trusty home PC died after 10 years. The ensuing upgrade (from SuSE 10 to OpenSuSE 12.3) was something of a culture shock for me - none of the convenient shortcuts and utilities I had ...
1
vote
2answers
13k views

Running Commands on Remote Linux Server Using SSH

I am writing a Bash Script wherein I need to run some set of commands on a remote Linux server from my local computer using SSH. I want the results to be displayed on the terminal screen or dump the ...
1
vote
0answers
1k views

What exactly is the lwp and threads in solaris?

The book "Solaris Internals" says Solaris executes kernel threads for kernel-related tasks, such as interrupt handling, memory page management, device drivers, etc. For user-process execution, kernel ...
1
vote
2answers
641 views

Supply input to a program with a password prompt

Is there any Linux command which supplies multiple enter keys to another process which is running in a terminal till the other process dies? For example consider the command yes ' ' | ./ssr-sim ...
0
votes
2answers
191 views

How to input two arguments with getopts

Hi friends I am writing a simple bash script; My script installs ppa. The problem is I can't add two arguments. I want write a simple: ./ppa.sh -i ppa:chris-lea/node.js nodejs I tried it; but ...
2
votes
1answer
187 views

Can pf be used to modify HTTP Headers and Contents?

I'm looking at options to replace my router with something that offers me more options for content filtering and also content modification. One of the things that I want to do is to modify HTTP ...
2
votes
2answers
4k views

Monodevelop doesn't run the project. When I try to run nothing happens

I've been trying to get Monodevelop up and running for almost a week now, first on my redhat and now on my fedora. The debugger doesn't work, when trying to debug I get this error: I tried ...
1
vote
1answer
275 views

FreeBSD : Persistent naming for NICs

Is there anything equivalent to Debians udev rules on FreeBSD? I was hoping to set the name on devices according to the devices attributes such as PCI bus/MAC etc. However, FreeBSD only seems to ...
2
votes
2answers
7k views

can not use mount.cifs: mount error(2): No such file or directory

The command mount.cifs is found not being able to run in a gentoo system with systemd ae429-1105 etc # mount -t cifs //file.abc.edu.au/user /home/directory/path -o ...
-2
votes
2answers
1k views

Run command automatically after login?

Another quick question. I have installed f.lux on Ubuntu 12.04, however the program refuses to work unless I run a command xflux -l [longitude] -g [latitute] -k [temperature] So I've created an ...
12
votes
4answers
510 views

Gallery of installed fonts

I want to view the fonts that are installed on my system. Specifically, I want the client-side (fontconfig) fonts, not the old-style X11 bitmap fonts on the server (for which xfontsel does an adequate ...
1
vote
1answer
215 views

High performance routing with high churn ruleset. What approach is most likely to scale to C10K and beyond?

I've been asked to create a high throughput router using PC / server hardware. I'm modestly familiar with pf, iptables, and tc, but I've never had such high churn and so many rules. I hope you can ...
1
vote
1answer
795 views

scp between two servers with different pem files

I'm following the answer on How to scp from server to server with different public keys? but I'm getting a connection error: # start the agent and capture its environment in the current shell eval ...
1
vote
0answers
113 views

What Causes Mutt To Fail In This Way

When sending an email, the authentication and uploading stages exit successfully. After a long period with the message Connecting to gmail.com, the error message Could not connect to gmail.com (No ...
0
votes
1answer
229 views

Unable to generate ssh public key when installing Redmine

I am trying to set up a Redmine on my server, and I am following THIS setup guide. I have used this guide before on my VPS and it worked perfectly however on this server I get following error when I ...

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