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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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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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In linux (I am using Ubuntu 15.04) there is a small program supplied with the X Window system called xload which displays a graph representing system load. I can excute this program by typing in command line the following: xload. I tried xload in command line on mac. But it said "command not found" My question is "What command, which is similar to xload in linux, should I use in command line for Mac OS X (El Capitan)"?
I'm not sure whether you want a windowed app or not. Assuming yes, then try
open -a "Activity Monitor"
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I'm migrating some bash scripts written for Mac to Linux, in which cp -X is used in several places. Some research shows that cp -X on Mac is different from cp -x on Linux.
The first one means "Do not copy Extended Attributes (EAs) or resource forks" while the latter means "stay on this file system".
So is there an equivalent Mac "cp -X" on Linux?
Thanks in advance:)
cp on Linux doesn't copy xattrs by default, and Linux doesn't have resource forks at all.
Thus, you don't need it -- default behavior does what you want.
However, if you want to be completely explicit:
cp --no-preserve=xattr
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I'm running Linux Mint 14 and accidentally replaced the contents of /etc/environment file. It was originally something like:
PATH=/usr/bin
but with some extra stuff. At the moment, most commands don't work in the terminal. If I do "ls", I get "command not found". Does anyone know the standard contents of this file is?
On ubuntu 12.04 it is:
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games"
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I have installed xmedcon-0.11.0-1.i686.rpm on my Fedora Linux machine. I ran the RPM file. Since I'm kind of new to Linux, I want to ask, where can I find the installed file and how can I run it?
Thanks.
From terminal use
$ rpm -ql xmedcon-0.11.0-1.i686 </code>
/etc/xmedconrc
/usr/bin/medcon
/usr/bin/xmedcon
You will see all the files installed. The main files will be above. From command line
run
$ /usr/bin/xmedcon
In case you already know the command name, you can type which medcon in a terminal and it should tell you where the executable is located.
And as full.stack.xchg said, just typing the name of the executable on a command line (or finding it in the graphical menu) will start the program.