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1500 questions
109
votes
2 answers
What is this new /run filesystem?
I just ran df -h a minute ago and noticed a filesystem has been added that I'm not familiar with. Does anyone know why /run exists? Is this something that's
been added by the kernel? By Arch Linux?
run 10M 236K 9.8M 3% /run
xenoterracide
- 59,188
- 74
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- 252
109
votes
9 answers
Press space to continue
How do I stop a bash script until a user has pressed Space?
I would like to have the question in my script
Press space to continue or CTRL+C to exit
and then the script should stop and wait until Space is pressed.
rubo77
- 28,966
109
votes
7 answers
how to glob every hidden file except current and parent directory
I want to glob every hidden file and directory, but not the current (.) and parent directory (..).
I am using bash.
Observe current behaviour:
$ ls -a
. .. ...a ...aa ..a ..aa .a .aa .aaa a
$ echo *
a
$ echo .*
. .. ...a ...aa ..a ..aa .a…
Lesmana
- 27,439
109
votes
2 answers
What is the difference between -m conntrack --ctstate and -m state --state
I'm reading this howto, and there's something like this:
We can allow established sessions to receive traffic:
$ sudo iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
The above rule has no spaces either side of the comma in…
Mikhail Morfikov
- 10,549
108
votes
15 answers
GRUB starts in command line after reboot
I installed Linux Mint on my laptop along with a pre-installed Windows 10. When I turn on the computer, the normal GRUB menu appears most of the time:
But after booting either Linux or Windows then rebooting, I GRUB starts in command line mode, as…
Antoine Aubry
- 1,141
108
votes
8 answers
#!/bin/bash - no such file or directory
I've created a bash script but when I try to execute it, I get
#!/bin/bash no such file or directory
I need to run the command: bash script.sh for it to work.
How can I fix this?
Nicolas de Fontenay
- 4,299
108
votes
7 answers
Is Mac OS X UNIX?
I had this argument recently saying Mac OS X was not UNIX, but Unix-like.
I know there is a Single Unix Specification and those spec compliant could use the UNIX trade mark.
Is Mac OS X a UNIX operating system or is it a Unix-like?
OscarRyz
- 1,275
108
votes
6 answers
How to use a shell command to only show the first column and last column in a text file?
I need some help to figure out how to use the sed command to only show the first column and last column in a text file. Here is what I have so far for column 1:
cat logfile | sed 's/\|/ /'|awk '{print $1}'
My feeble attempt at getting the last…
user70573
- 1,319
108
votes
2 answers
How can I restart the SSH daemon on Ubuntu?
When I type in service sshd restart I get a sshd: unrecognized service error.
I do have, in /etc/ssh/ a file sshd_config that I use to set config. I can also putty into the Ubuntu box (it is remote).
When I type in /etc/init.d/sshd restart I get No…
bharal
- 1,443
108
votes
5 answers
How can I add an application to the GNOME application menu?
I have an application that I start only from the command line. How can I add the command (and preferably a nice logo) to Gnome's application menu?
mart
- 1,349
- 2
- 10
- 12
107
votes
9 answers
How can I detect if the shell is controlled from SSH?
I want to detect from a shell script (more specifically .zshrc) if it is controlled through SSH. I tried the HOST variable but it's always the name of the computer which is running the shell. Can I access the hostname where the SSH session is coming…
stribika
- 5,454
107
votes
3 answers
What is stored in /dev/pts files and can we open them?
According to my knowledge, /dev/pts files are created for ssh or telnet sessions.
user2720323
- 3,589
107
votes
7 answers
How can I edit symlinks?
My basic understanding of a symlink is that it's a special file, a file that contains a string path to another file. The kernel's VFS abstracts a lot of that away but is there any reason why symlinks seem to be impossible to edit?
In other words:…
Oli
- 16,068
107
votes
5 answers
Installing a .deb package on Arch - Is it possible?
The problem is simple - I have a .deb package and I want to install it on my Arch Linux. Is this possible? If yes, how?
BKC
- 1,173
107
votes
3 answers
What are character special and block special files in a unix system?
How are character special files and block special files different from regular files in a Unix-like system? Why are they called “character special” and “block special” respectively?
Geek
- 6,688