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Questions tagged [unix]

Unix is a multitasking, multi-user computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs.

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Fedora “only console users are allowed to run the x server”

[diogoferreira@localhost ~]$ startx xauth : file /home/diogoferreira/.serverauth.3282 does not exist /user/libexec/Xorg.wrap: Only console users are allowed to run the x server So I installed VMware ...
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15 views

Is it possible to use finger as a reverse lookup?

Let's say I want to look up who has a particular phone number in my organization, and they're usually listed if you do finger username. Is it possible to do a reverse lookup and get the username/names ...
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Copy line pattern from 50000 files and copy in a file using Linux

I want to copy one line per file from 50k files, i.e. copy single lines into a new file. The resulting file will have 50k lines. The command I tried is: awk '/linetocopy/'file*/*.csv>new.csv # ...
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33 views

Lowest level features of Unix operating system

When I first did an analysis of the lowest-level features of Unix, I came up with this list: TCP (Networking, HTTP, HTTPS) FS (file system) Memory (dealing with memory) Instructions (individual ...
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2answers
29 views

Bash shell script: recursively cat TXT files in folders

I have a directory of files with a structure like below: ./DIR01/2019-01-01/Log.txt ./DIR01/2019-01-01/Log.txt.1 ./DIR01/2019-01-02/Log.txt ./DIR01/2019-01-03/Log.txt ./DIR01/2019-01-03/Log.txt.1 ... ...
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connect() to unix:///tmp/web2py.socket failed (13: Permission denied) in mac

I have followed below tutorial to setup nginx+web2py+uwsgi but nginx couldn't access uwsgi socket. below is my configuration file setup web2py+uwsgi+nginx on ubuntu nginx conf file in /usr/local/etc/...
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16 views

how to send XML file to web server using wget command from unix shell script

I am trying to send an xml file to webserver using wget command in unix as below wget --post-file xyz.xml http:// i am getting 400 bad request error,please help me
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How could a hacker access the /etc/shadow file if it is only accessible by root and they do not have root access?

I am reading a book on ethical hacking, and it has some examples in Python which I won't post here unless asked since this isn't Stack Overflow. But, I was wondering, if a hacker was trying to access ...
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Moving zero padded files based on sequence

I am trying to move repetitive generation of files in sequence like [00000.txt ... 99999.txt] and maintaining current date logs. I tried with the below script which is working for single digit ...
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49 views

How to scan/log already running processes on Unix

you can use ps to list running processes, but I would like to know if there is a way to inspect the running processes to any level of detail. for example, maybe there is a way to see every assembly ...
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3answers
117 views

Copy directory structure only at year end

Happy New Year. I have a solution to this, but I can't make it work unless I am in the directory I want to copy. At the end of 2018, I want to copy the directory structure only of various folders ...
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44 views

Stop rsync from deleting large amounts of data when disk accidentally umounted

I use rsync to mirror my hard drive onto a couple of devices with cron. The command is essentially this: rsync -avr --delete /home/username username@example.com:/home/username The problem I have is ...
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1answer
30 views

I am having trouble understanding pipes and their implememnation in xv6

I am studying Operating Systems on my own from the MOOC lectures available online and wanted to work on xv6. I was reading the Documentation on xv6 and in chapter 0 when it is talked about pipes (pg. ...
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1answer
70 views

Combining multiple find commands into one

I have a bash file with the following commands to copy books from my books folder into my toread / Read Later folder find /books -name '*.pdf' -exec cp -n {} /toread \; find /books -name '*.epub' -...
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6 views

Where is folder of temporary files from root in OpenBSD?

Ive Been using a Test Environment with OpenBSD, NetBeans and Wildfly on localhost with root User. After pulling some Maven dependencies ive got a full File System on / and Message that my temporary ...

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