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Martin Hope
Timur Fayzrakhmanov
Asked: 2014-08-02 08:19:07 +0800 CST
  • 972

I want to ssh or bash into a running docker container. Please, see example:

$ sudo docker run -d webserver
webserver is clean image from ubuntu:14.04
$ sudo docker ps
CONTAINER ID  IMAGE            COMMAND    CREATED STATUS  PORTS          NAMES
665b4a1e17b6  webserver:latest /bin/bash  ...     ...     22/tcp, 80/tcp loving_heisenberg

Now I want to get something like this (go into the running container):

$ sudo docker run -t -i webserver (or maybe 665b4a1e17b6 instead)
$ root@665b4a1e17b6:/#

However when I run the line above I get new CONTAINER ID:

$ root@42f1e37bd0e5:/#

I used Vagrant and I'd like to get a similar behaviour as vagrant ssh.

bash
Martin Hope
user221744
Asked: 2013-12-04 08:34:26 +0800 CST
  • 770

I have tried to increment a numeric variable using both var=$var+1 and var=($var+1) without success. The variable is a number, though bash appears to be reading it as a string.

Bash version 4.2.45(1)-release (x86_64-pc-linux-gnu) on Ubuntu 13.10.

bash
Martin Hope
huff
Asked: 2011-08-27 16:22:54 +0800 CST
  • 594

I'm running Ubuntu 11.04. I use the terminal to start a bash session, and I want to add an environment variable:

$r@hajt:~$ env THEVAR=/example

But it's not working. It shows all the variables with THEVAR being the last one, but another call to env does not show THEVAR anymore- env | grep THEVAR returns nothing.

Similarly, scripts with export (export THEVAR=/example) or other variable assignments (THEVAR=/example) don't add the environment variable.

I know I'm doing something wrong, I know it should be something simple, but I just can't find what.

UPDATE: The real meaning of my question was this one:

(Anyway I'll choose the most voted answer and leave the edited title -that wasn't what I was asking)

env runs a program in a modified environment, then dismisses all the changes.

bash
Martin Hope
Bakhtiyor
Asked: 2010-12-15 23:54:39 +0800 CST
  • 501

I would like to create an alias to rm command in order to have a confirmation message after executing this command. So I am creating an alias like this alias rm='rm -i'. But as far as I know this is a temporary alias and it lives until you close the terminal.

As it is explained here to save alias permanently I need to execute ~/.bash_aliases or ~/.bashrc commands in terminal and add my alias there. But when I execute ~/.bashrc I get following error message :

bash: /home/bakhtiyor/.bashrc: Permission denied

When I run ~/.bash_aliases I get another error message like this:

bash: /home/bakhtiyor/.bash_aliases: File or directory doesn't exist.

What is the actual problem and how can I solve it?

bash alias