A shell is terminology for a command-line interpreter most commonly used with Unix-like operating systems, but also used to interact with GUI-based operating systems in a more granular fashion. Not only does it allows the user to run programs from a text interface, but frequently offers basic ...
0
votes
0answers
26 views
Getting “zsh: command not found: time” when running `time` in subshell [migrated]
I installed ZSH (and Oh-My-ZSH) on a Ubuntu 12.10 64 bit machine a few days ago. I just tried to do:
time (time ls)
and got this error:
zsh: command not found: time
( time ls; ) 0.00s user 0.00s ...
0
votes
1answer
86 views
Linux- Permission denied?
I'm installing Neo4j server as a linux service, but when I install it, I get the following message:
/sbin/insserv: Permission denied
What is this? What should I do? I'm running everything with ...
0
votes
4answers
84 views
The opposite of su: run a command without root privileges
I'm writing a shell script where most commands don't require root privileges.
The script should be ran by the administrator. But I would like to be able to "su" to a normal user account for the parts ...
0
votes
3answers
24 views
How can I suppress the “…this does not map back…” message when using SSH?
I am writing a script that attaches to several of our machines via SSH to check some usage stats.
Each time I do:
ssh -i ~/.ssh/ourkeyfile.pem user@host
I get the typical message:
Address ...
0
votes
2answers
37 views
move files from one device to another
I am trying to automate a remote backup on our centOS server, I run the current command :
nice -n 10 mv -vfb /media/localbackup/* /media/remotebackup/
however when this is ran I get the following ...
-2
votes
1answer
56 views
accessing own XAMPP directory through shell putty [closed]
I am trying to compare directories from a shared host server and directories located in my own computer. Own computer has XAMPP as the server.
To compare these two directories, I need access to the ...
0
votes
2answers
36 views
Copy file to backup directory preserving folder structure
I have to copy a file in a directory, to its backup directory, preserving the folder structure.
Ex. The file aaa in MyFolder/Test/aaa to .MyFolder.bck/Test/aaa
I tried to use
cp --parents ...
0
votes
2answers
44 views
SSH direct stdin and stout to and from postgres client
my local can connect to remote , but it cannot connect to dbserver.
remote can connect to dbserver (with psql).
I want to run sql scripts from my local against the db.
I am looking to a way to open ...
1
vote
0answers
28 views
w command not showing users when not root
I have multiple users logged on my server (ubuntu 12.10), with ssh. None of them has root privileges.
If I log in with my admin account and type
w
the resulting output is:
17:21:05 up 10 days, ...
0
votes
2answers
95 views
chsh: PAM authentication failed
i want to change default shell env
and run chsh -s /bin/zsh as root user,
but a error message appeared: chsh: PAM authentication failed.
i find this thread ...
1
vote
2answers
33 views
I want to filter out two lines from the output of a program [closed]
I have a command that outputs a bunch of data, but I only want two lines. Grep doesn't work because the lines I want are not next to one another. I can't seem to figure out sed...
Help please. :)
...
0
votes
1answer
30 views
expect script not working with bash script
I want a script that ssh to remote server and then run a script which is at my local machine and then store the output on my local machine
Expect script for ssh to remote server:
#!/usr/bin/expect ...
0
votes
0answers
16 views
pfsense developer shell open outgoing ports for MAC
How can i configure pfsense from developer shell to let only ONE internal IP (or MAC) connect to external VPN server (PPTP and L2TP)?
Thanks
0
votes
1answer
46 views
nc (netcat) hangs, waiting for more data, in UDP mode.
I'm trying to send a small string to statsd via nc inside of a read block:
while read line; do
printf "folder.counter:value|1c" | nc -q 0 -u $host $port
done
Unfortunately, when in UDP mode, nc ...
0
votes
1answer
49 views
APC Network Shutdown script on vMA
I'm trying to configure the APC Network Shutdown script for 3 ESX hosts, and it doesn't seem like I can run my test script on my vMA appliance. I'm trying to verify I've set it up correctly using a ...
-1
votes
1answer
50 views
filenames, ASCII unicode escaped sequences to UTF8 [closed]
I'm not sure if I've grasped the issue here so if I haven't just say so and I'll edit the title.
My problem is the following:
I have an Ubuntu 12.04 server (UTF-8 locale) to which users upload files ...
0
votes
4answers
64 views
Move files to subdirectories: /img/ab123.jpg --> /img/ab/ab123.jpg
I have a linux webserver with about 25.000 images in one directory. They are all lowercase and in the format two letters, three digits and jpg as the extension. Because that many files in one folder ...
0
votes
1answer
47 views
Automate git-pull, stuck with keychain
I'd like to create a cronjob to automatically run a git-pull every minute.
The problem is that my repo is private, I had to create keys on my system (Ubuntu Server 12.04). I installed keychain and ...
0
votes
0answers
19 views
Running command from script won't give desired output
If I run
sudo /usr/lib/update-notifier/apt-check -p &> ~/update-list.txt
directly on terminal, I get the update-list.txt file with all the updates in it.
But if I write the same command in a ...
2
votes
1answer
63 views
Where is $HOME set in Centos 6.3
WHere is the $HOME environment variable set in Centos 6.3?
I've looked in:
/etc/profile
/etc/profile.d/*
/etc/bashrc
~/.bash_profile
~/.bashrc
Also, the second to last column in /etc/passwd has ...
0
votes
1answer
84 views
Linux how to run a script in the background on a remote server? [closed]
I'm on a linux machine.
I would like to run four perl scripts on a remote server. Each script produces a single output file but it can take hours to run. I would like to run the scripts in the ...
0
votes
0answers
47 views
shell command queuing system linux (like atd)
I need to queue shell commands depending on current available resources. I know of atd and it's exactly the type of tool I would like to find but with consideration for RAM and possibly disk ...
1
vote
2answers
40 views
Exporting paths and configs in ubuntu
I am trying to add some exports using the following method:
# SETUP CONFIGS
sudo bash -c "cat >> /etc/bash.bashrc" <<'EOF'
export AWS_CONFIG_FILE=/etc/test/aws.txt
export ...
-1
votes
1answer
45 views
How to tar into a directory. [duplicate]
I would like to be able to tar all of my files so that when the are extracted they're in a sub directory I have specified. For example if I have File1 File2 and File3 inside of my current directory I ...
0
votes
3answers
70 views
Cant run rc.local manually and doesn't run automatically on ubuntu
This is quite a simple one. I created an rc.local file here:
/etc/rc.local
I made it executable. However, it doesn't run when I boot the server. I can see it in the directory and when I try to run ...
0
votes
1answer
47 views
can't access sourced variables inside Upstart script stanzas
I'm trying to use the variables defined in /etc/environment in an upstart script.
I'm able to export the variable to the child process but for some reason I not able to use them in the upstart script ...
0
votes
1answer
55 views
Shell - Fix 80 column wrap limit
I have several Centos servers that enforce an 80 column limit when I ssh into them, rather than being dynamic and going to the width of whatever shell I am using as seen here:
.
Is there a way to ...
0
votes
1answer
70 views
Mysql select query not generating result on cron but is ok via terminal
We have a C program (source is below). We compile it with:
gcc -Wall -Wextra -g $(mysql_config --cflags) get1ReceiveSource.c $(mysql_config --libs) -lrt -o get1Receive
The select give results ...
1
vote
1answer
34 views
How do I run a shell script only any files are modified in a folder?
I need to replicate a folder over a very slow link to several destinations.
Currently I create a text file with find.
find "$sourcedir" -exec ls -la {} \; > "$statefile"
I then compare it to a ...
1
vote
1answer
53 views
Trying to use sudo with bash subshell: env variables not working
I have read a few other posts, it appears cumbersome to do multiple commands within sudo. Heredocs suffer from limitation of not being able to do redirection of stdin/stdout. Here in any case is a ...
0
votes
1answer
32 views
Attempting to change shell to ZSH on Amazon Linux: Asking for ec2-user's password
What do I enter? I use the provided private-key to authenticate when SSH-ing to the server, so I don't think I actually have a password for the user...
Also tried this:
0
votes
2answers
46 views
IPv6 reverse not resolving for Linux shell “last” and “who”
IPv6 is properly resolving in DNS:
> host 2607:fa18:0:2::17
7.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.0.0.0.0.0.8.1.a.f.7.0.6.2.ip6.arpa \
domain name pointer sine.xmission.com.
However, the ...
3
votes
4answers
107 views
Download a file from the shell when button click is required
I have a link to a file that I would like to download from the shell. Unfortunately, the URL redirects to a software license agreement page which requires clicking an accept button. This is fine when ...
0
votes
1answer
48 views
Why is dash the new default shell among Debian squeeze [closed]
Can anybody tell me why Debian changed the default shell from bash to dash?
I run in different issues with the new shell and I would like to understand what's the cause for this change.
0
votes
1answer
73 views
Remove text between delimiters in linux [duplicate]
Server got hacked and a fair amount of files were edited. We noticed that the code that was inserted were typically done between delimiters (e.g. /*e21234*/ blah blah /*/e21234*/). What is the most ...
1
vote
2answers
81 views
Changed shell and can't ssh login to root account
I used the command usermod -s /bin/fish root to change the root user's shell and now I can't login to my root account. Why is this happening?
I am trying to SSH into a server running Ubuntu through ...
2
votes
3answers
106 views
Can I use EC2 as a random Unix shell? [closed]
I have a small, low-cost, VPS that I use for some "grey-beared-Unix-guy shell stuff": basically, hosting a Debian running a XMPP bot, keeping long lived shell sessions with tmux under intermittent ...
2
votes
2answers
93 views
rsync not deleting folders
I have a problem rsyncing my folders. In my home there is folder named "workspace". Recently I changed its content a lot, creating new directories, deleting old ones. New folders were successfully ...
0
votes
2answers
83 views
xargs remove file name containing $
I am using xargs to remove files from remote server.
xargs -a /var/log/del.log -i -exec ssh root@abc.com 'rm -rf "{}"'
del.log contains path of the files which are deleted on local server and I ...
0
votes
1answer
51 views
dsh (dancer's shell): is it possible to specify ports in config file?
Using dsh you can define the list of machines in ~/.dsh/machines.list in the form:
<user>@<host>
I'd like to have multiple hosts with different ssh ports, like this (I tried):
...
1
vote
3answers
174 views
gpg-agent says agent exists, but gpg says agent doesn't exist?
I'm struggling with some issues while scripting gpg with bash on a Debian 6.0.6 box. I have a script that does a batch of operations and wants to make sure that a gpg-agent is available before it ...
2
votes
1answer
45 views
Is there a Linux utility to return an error code for a particular input?
I'm running Puppet, and I need to run one of the defined exec commands only if a line does not exist in the output from a different command. I can set up a contingency with a unless clause (which ...
1
vote
2answers
289 views
ssh root access denied after changing shell
after i tried to change my server shell, i cannot login as root anymore.
First, i installed the z-shell (zsh) as root and then i wanted to change it to my default shell. Therefore i used "chsh". My ...
10
votes
2answers
219 views
backslash at the beginning of a command
In Installing RVM manual I see a lot of lines starting with '\':
Install RVM with ruby:
$ \curl -L https://get.rvm.io | bash -s stable --ruby
I'd think it is just mistype but they repeat ...
-2
votes
1answer
156 views
ls: cannot access file : No such file or directory. [closed]
In the shell script, I will have to access the binary logs stored in /usr/local/mysql/data.
but when I do this,
STARTLOG=000002
ENDLOG=000222
file=`ls -d ...
1
vote
3answers
281 views
Upstart script vs. command-line: why this difference in behavior?
I'm trying to set up Tomcat to start with upstart. I find the following works:
description "Tomcat Server"
start on runlevel [2345]
stop on runlevel [!2345]
respawn
respawn limit 10 5
...
-2
votes
1answer
84 views
sh dev/null Permission denied apache
I am using Mac osx Mountain Lion for development.
I am trying to execute a shell command in php using the 'exec' function. At the end of my command I am putting the output to > /dev/null 2>dev/null ...
-1
votes
1answer
37 views
Different behavior from ubuntu server and ubuntu client on windows [closed]
#!/bin/bash
# Reading
cat /home/radiare/Desktop/first.txt | while read LINE
do
if [ "$LINE" == "false" ]; then
echo "Inside first loop"
break
fi
done
cat /home/radiare/Desktop/second.txt | while ...
0
votes
2answers
96 views
Debian shell script to update server software
A lot of my server software is installed via apt-get and I was wondering if there is a small shell script I can get which will will update all of this software. Also do I need to restart my server ...
2
votes
2answers
92 views
Appending data to file with a single open/close from a shell script
I need to adjust my shell script and write to $log multiple times. Opening and closing the file repeatedly will cause an increase in runtime.
How can I write everything at once to the file, ...
