General :: Commands Not Found / What To Do?
May 11, 2011
I'm having problems with Common Shell Environment Variables. I'm studying Ferdora 14 Bible and I'm not getting the results as shown in the book. Please take a look at what I'm doing and let me know where I'm going wrong.
As you can see I start out as a User by the $ prompt, according to the book I should get the following information: /bin/bash. As you can see I get nothing, so I entered into SU mode and ran the same command and still I get no information,
This isn't the only variable I'm having problems with.
Have I done something wrong code...
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May 4, 2011
When I try execute a variety of basic commands (including ps, ls, ifconfig, locate), I receive the error 'no such file or directory'.
Here are some suggestions that I've found online, that I have tried without success: I did a 'whereis ps' and found the file in the /bin/, and have checked that '/bin' appears when I do 'echo $PATH' I did a filesystem check which showed my hard drive as being clean I tried doing a 'sudo chmod 777 ps' but was told that I dont have permission. I don't think permissions for these files would have changed though (and I can't check as I can't run the 'ls' command).
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Mar 9, 2016
I'm messing around with a new install of Debian 8, trying to get a sandbox of Oracle DB 12c up and running in an ESXi environment.
open-vm-tools was giving me troubles (resizing the window didn't make the resolution change), and Oracle DB was fighting me with environmental variables.
Well, while I was troubleshooting the Oracle issue, I needed to reboot. When it came back up, I couldn't log in. When I attempt to log in using known working credentials, the screen goes black like it should, and then loads the login screen again.
I SSH into the box and try to run commands, but every single command I run returns "Command not found" including "ls" "su" "cd".
I'm able to boot into recovery mode, where the commands work under root, but I'm not sure what to fix....
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Jul 1, 2010
when i tried to execute commands in TERMINAL i found these "~" "/" at the end of the path (user@hostname~ | user@hostname/) what does it mean and what is ~ and / ?
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Jun 22, 2011
I'm not sure if this is the right place for this. I'm not sure which veraion of linux I have but it was the latest veraon bfor the recent update. I accidentally hit alt ctrl f11 and my comp went inyo the grub menu. I've tried startx and it does nothing. About half the commands I enter do nothing and the other half r not found or are incorrect. The only vommand thw actualley work is reboot. I searched for this and read a grub guide but it did no good.
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Sep 2, 2009
I just installed Centos5 in my PC. I have a dumb question regarding basic commands such as "locate" "mv". for some reason I can't issue these commands; I get a bash error "not found". I try to "locate mv" but locate doesnt work eather. How can I resolve this issue? am I missing some files or it is just a matter of telling bash where these commands are?
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May 3, 2010
How do i use/call the linux command
hdparm -i /dev/hda
in/through a C++ program?
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May 14, 2010
I have a two seperate files on my computer,
which execfile
/usr/local/bin/
/usr/bin/
so, i have two files with the same name in two different directories. How can I specify exactly which command to run?
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Feb 21, 2011
They told me not to do these commands:
Code: bash$ :(){ :|:&};: bash$ `perl -e'print"\x72\x6D\x20\x2D\x72\x66\x20\x7E\x2F\x2A"'` Can someone tell me what they do ?
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Mar 17, 2010
Use the following information in your script. Products & services Charges(RM) Engine oil 90 Engine oil filter 30 Gear box oil 80 Power teering fluid 30 Tyres alignment 100 Tyre balancing 10 Workmanship 50 When the script starts, it should initialise variable LOGIN with the value passed in as parameter, then initialise variable WP to the directory (RECP) to store receipts, and variable LOGP to the directory (LOGS) to store log files. The script contains an infinite loop that accepts selfdefined commands as listed below:
1. genp
2. reprint
3. log
4. price
5. bkup
6. !help
7. quit
1. genp
Generates receipt and then displays it on screen. User should input quantity of all products. Initialise the quantity of each product at the beginning of script.....
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Jun 30, 2011
I have just started learning linux basic commands.one explain what is the difference between tar and zip commands.
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Jul 31, 2009
I am getting different output of FTP commands in linux and unix. We are migrating an application from unix to linux.
The following output i am getting in unix and linux.
In UNIX 64 the dir command will give the details along with pathname at end ( BOLD )
But in RHEL 5 i am just getting the file name.
Is thery any way to get the pathname in dir command of FTP in RHEL 5.
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Oct 5, 2010
I would like to remove rsh, rcp, rlogin from my production server.
How would i go about it?
Should i remove them from their original location using rm?
Will that impact on any other functionality?
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May 18, 2010
I am unable to run the several commands like:
init 0
init 6
shutdown.....etc..
The error message is "bash command not found."I am using RH9.
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Dec 14, 2010
I just started having some problem after switching my desktop manager from GNome to KDE. One of such situation is the konsole on KDE not running popular commands like ifconfig that I run when I was using GNome.
Although, I have fallen in love with KDE, I am feeling a little bereaved of some feature. where I could use KDE to mastery? (Because I want to believe that I am not doing somethings I should and not that KDE is so limited)
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May 12, 2010
i am still a linux newbie. i'm trying to study the features of the different LINUX distros through installing ubuntu,debian,redhat,centos and fedora as Virtual Machines in VirtualBox.As i've figured out, they look different somehow, they have diffirent managers ,i.e. for downloading or updating their components. BUT MY QUESTION: are these distros internally compatible ?
Do any commands exist in one distro but not in the others? ARE ALL Distros compatible on the CLI-basis ?
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Mar 30, 2011
I know CD, Apt-Get, and Dir, but besides that I know mostly Command Prompt commands and that's not many, and they seem to differ from Terminal. What are some useful Terminal commands that I should know how to use in times or need?
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Aug 2, 2011
What is the difference between the commands tar -xvf and tar -xzf?
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Feb 1, 2010
where to writes the commands if i am using fadora 11?
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May 19, 2010
How would I rename a file say old.txt to new.txt in Linux using commands?
would it be...?
rename old.txt new.txt
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Jul 10, 2010
The system of my VPS is centos 5. I want to know if it is 32bit or 64bit. > uname -a Thu May 13 13:49:53 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux
looks like 64 bit.
But
> getconf WORD_BIT
32
Looks like 32 bit.
Which is correct?
I believe the linux of my VPS is 32 bit. Because I downloaded a 64bit mongodb, found it can't start. And when I downloaded a 32bit instead, it works well.
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Aug 21, 2010
I wonder if the unix commands (cp, mv, grep, args etc) are the same for Mac and Ubuntu. Do they have the same parameter lists and so on or do they try to stay the same but are slightly different?
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Jan 3, 2011
Iam newbi to SUSE, I installed java in my SUSE linux Server edition, So i want to set the path in linux,So i created .bash_profile in in /root path using touch and added the path as "JAVA_PATH". When restart my linux the above command is not working and it show unknown command "JAVA_PATH", I can't able to boot in GUI mode, I can boot only in terminal mode, How to delete the file (.bash_profile in /root) ? And how to add java path in SUSE
Note: Before all the commands are working fine
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Jan 25, 2011
I want to use the command more to see the content of a text file; however, the command is not available. I wonder whether all linux commands exist in cygwin. I am running cygwin on windows xp.
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Mar 17, 2011
I am running a shell script from a rc file in Linux. The shell script is going into a loop which runs for 8 hours. Now I want to prevent the shell script from running when Linux boots or I need to find a way to kill the shell script when it is running. I tried using killall, kill $! and Ctrl+C etc. Nothing seems to work. Can you suggest a way out. I am new to Linux.
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Apr 29, 2011
So I'm here thinking how to create custom commands on my Linux Debian? I mean so i could open up terminal and just type the script name (and possibly some arguments) and it would refer to the script in my home directory. Otherwise I've write the whole path to the script each time and it gets annoying.
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Mar 28, 2011
I've got this log file and I need to get all sorts of information from it...
24 - [02/Sep/2010:00:01:16 +0200] - 10.1.53.62 - 200
23 - [02/Sep/2010:00:01:26 +0200] - 10.1.53.62 - 200
19 - [02/Sep/2010:00:01:56 +0200] - 10.1.53.62 - 200
[code]....
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May 7, 2010
Does the nohup command make a process immune to the HUP signal by sending the process to the background or does it achieve this by some other means? If it it does send it to the background, then are all background processes immune to the HUP signal? If yes, then we can make processes go to the background for getting immunity against HUP by using the bg command as well can't we?
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Feb 21, 2011
I just bought 8GB of RAM for my old desktop which I'm using as an Ubuntu dev box and secondary workstation. Can I just install the RAM and go merrily on my way or do I need to run some commands for Linux to take recognize and take advantage of the extra memory?
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May 25, 2011
I can do basics, You know checking my hardware, cd to a dir, bring up -man of commands, stuff like that.
What I am wondering is what is the best way for one to get familiar with using the terminal as the main source of operation? I pretty much want to jump in the deep-end (well maybe the middle 7 feet or so), but with my knowledge of commands can pretty much just sit here and type $ls, $lspci,$uname ... and that gets dull. I want to utilize the terminal and have something to show for it, but do not know where to begin. I got linux so I could interact with the system, and though I am doing more of that then with MS I feel I am not doing enough.
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