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Closed 8 years ago.
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I have noticed that on my Kubuntu installation, the terminal is Konsole. How do I set it to use bash instead?
You are actually using a bash terminal. Konsole is a kind of emulator. I am quoting an answer from unix stack exchange site, when you can find more info about the type of shell you are using.
/etc/passwd defines the default shell for the user, of which bash is just the most common option. Alternatives to bash are zsh, ksh, csh etc. You can google each of them to find out more about them. The default shell is the program that will be run inside of Konsole, which essentially can work with any shell or terminal program for that matter.
(P.S /bin/sh is bash (Bourne Again SHell) terminal.)
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Closed 3 years ago.
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New kali linux terminal starts with a bash error:
bash: ‘export: command not found
I think I messed up my bash environment when workin on a jsnode installation and do not know how to fix it.
I think I need to fix my environment variable, but do not know where that is in Kali. Appreciate any help.
There seems to be a typo in a command. It should be export but instead it's ‘export. The errant character is Unicode U+2018, LEFT SINGLE QUOTATION MARK.
The first place to look is your .bashrc, then depending on your OS, .profile or .bash_profile, then any number of other Bash startup scripts that might get called like .bash_functions, or higher up the chain like /etc/bash.bashrc.
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I am wondering if such a thing exists to where I could run a Java program remotely through SSH on my VPS and then Alt + Tab so that I can run other things in the command line without having to reconnect in a separate tab. I've tried looking through the Java options in the manual, but I couldn't find anything insightful.
In Linux/Unix kind system there is a utility called nohup. You can invoke any command or process using nohup; it will make your terminal free after execution. Linux/Unix systems also support background jobs by appending the character & at end of your command.
So if your Java process is as follows,
java <your program>
you can run it as follows:
nohup java <your program> &
This modified command frees your terminal and you can run another command as per your need.
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Closed 6 years ago.
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To clarify, when entering the default shell in OS X it appears as:
pcname:~ username$
and changing directories appears as:
pcname:myFolder~ username$
however, in my experience with linux distros, the shell appears as:
username#pcname:~$
what is the purpose for the differences in syntax?
What I do is the following: On the system that has the promt the way I want it, I type:
echo $PS1
I copy the result, say, \u#\h \w\a \$ and then edit the ~/.bashrc on the system that I want to use with the line:
export PS1="\u#\h \w\a \$ "
And then I get the same prompt on that system as well.
If you want to get creative, have a look here
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Closed 8 years ago.
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I am trying to write a shell script that will show me the OS version. I am using Linux Ubuntu 14.
How can i write a shell script that will show me the OS version?
Simply use lsb_release:
$ lsb_release -sr
12.04
See the man page for all available options. Note that not all platforms or Linux distributions have lsb_release.
Parse the output of uname:
#!/bin/bash
uname -s
and Bob's your uncle. Let me know if this helps.
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Your system has 2 versions of the same utility installed, both which have the same filename.
How would you find out where the utility you would run by default is located?
If the utility's file name is "foo", type which foo
You'are looking for which command
which - shows the full path of (shell) commands.
Let's say you have perl installed in /usr/bin/perl and /usr/local/bin/perl and if the default path is the second one then
$ which perl
/usr/bin/local/perl
Check the $PATH.
echo $PATH
The first is started default.
or
which
Similar to which , whence gives you whence command from Korn Shell tells how a name would be interpreted by the shell: it detects commands and aliases, and searches your path.
whence {executable-you-are-looking-for}
and also in linux, just typing name & hitting tab will show list of available versions with which you can run.