I am creating my dot files following this tutorial. It successfully works for emacs.d.
Since I am using NixOS, I tried doing exactly the same steps with symlink creation for the configuration.nix file. Thus, I did:
1 - On terminal:
[pedro#system:/etc/nixos]$ sudo mv /etc/nixos/configuration.nix ~/.dotfiles/
2 - Then:
[pedro#system:/etc/nixos]$ ln -sf ~/.dotfiles/configuration.nix configuration.nix~
3 - It seems to work fine, as I do:
[pedro#system:/etc/nixos]$ ls -la
total 12
drwxr-xr-x 2 root root 4096 Dec 1 21:41 .
drwxr-xr-x 32 root root 4096 Dec 1 22:00 ..
lrwxrwxrwx 1 root root 39 Dec 1 21:41 configuration.nix~ -> /home/pedro/.dotfiles/configuration.nix
-rw-r--r-- 1 root root 842 Nov 12 17:40 hardware-configuration.nix
After doing some editions and saving the changes, I can't do nixos-rebuild switch, though. It throws an error:
[pedro#system:/etc/nixos]$ sudo nixos-rebuild switch
warning: Nix search path entry '/etc/nixos/configuration.nix' does not exist, ignoring
error: file 'nixos-config' was not found in the Nix search path (add it using $NIX_PATH or -I), at /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/default.nix:1:60
(use '--show-trace' to show detailed location information)
building Nix...
warning: Nix search path entry '/etc/nixos/configuration.nix' does not exist, ignoring
error: file 'nixos-config' was not found in the Nix search path (add it using $NIX_PATH or -I), at /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/default.nix:1:60
(use '--show-trace' to show detailed location information)
building the system configuration...
warning: Nix search path entry '/etc/nixos/configuration.nix' does not exist, ignoring
error: file 'nixos-config' was not found in the Nix search path (add it using $NIX_PATH or -I), at /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/default.nix:1:60
(use '--show-trace' to show detailed location information)
The ~ after configuration.nix~ might be the problem here. How can I fix this?
Thanks!
Your Step 2 seems to have cause the issue here: The symlink should be called configuration.nix not configuration.nix~ as you have noticed.
You could fix this by running mv configuration.nix~ configuration.nix in the /etc/nixos folder which would rename configuration.nix~ to the correct configuration.nix.
Related
I am using cygwin git to manage my windows source. And I have met the following problems at least twice on different PCs. So I am thinking there is really something tricky behind the weird behavior.
There are two project folder with same source code for comparison. One is managed by cygwin/git, and the other is not. When I try to clean/build the first project. I got a failure complaining the file/folder access fail.
And when I use cygwin to check the folder, it is strange that the user access rights are missing for some new folders created during the build.
ICT-EDA#ICT-EDA:/cygdrive/f/stm32/F103_spi_slave/EWARM/F103_spi_slave(master)]$ls -l
total 0
d---rwx---+ 1 ICT-EDA None 0 May 30 11:16 Exe
d---rwx---+ 1 ICT-EDA None 0 May 30 11:16 List
d---rwx---+ 1 ICT-EDA None 0 May 30 11:16 Obj
I have check the umask as following
ICT-EDA#ICT-EDA:/cygdrive/f/stm32]$umask
0022
ICT-EDA#ICT-EDA:/cygdrive/f/stm32]$ls -l F103_spi_slave/abc F103_spi_slave/EWARM/abc
ls: cannot access 'F103_spi_slave/abc': No such file or directory
ls: cannot access 'F103_spi_slave/EWARM/abc': No such file or directory
ICT-EDA#ICT-EDA:/cygdrive/f/stm32]$touch F103_spi_slave/abc F103_spi_slave/EWARM/abc
ICT-EDA#ICT-EDA:/cygdrive/f/stm32]$ls -l F103_spi_slave/abc F103_spi_slave/EWARM/abc
-rw-rw-r--+ 1 ICT-EDA None 0 May 30 11:54 F103_spi_slave/abc
----rw----+ 1 ICT-EDA None 0 May 30 11:54 F103_spi_slave/EWARM/abc
ICT-EDA#ICT-EDA:/cygdrive/f/stm32]$ls -ld F103_spi_slave F103_spi_slave/EWARM
drwxrwx---+ 1 ICT-EDA None 0 May 30 11:54 F103_spi_slave
drwxrwx---+ 1 ICT-EDA None 0 May 30 11:54 F103_spi_slave/EWARM
From the above log, you can see with the same umask, the two new created files are with different access rights. I can't see any differences between the two folders, too.
The git is created under F103_spi_slave/.git. So the F103_spi_slave/abc should also be managed by git. It is even confusing. Maybe the problem is windows, not git.
On the other folder, the build finished successfully, as that is not managed by git.
I am trying to give myself root access to all the file in this folder and not have to sudo everything I want to run a command.
The file I am concerned with is pro
When I enter ls -l I get :
drwxr-xr-x+ 12 Guest _guest 384 13 Jan 14:56 Guest
drwxrwxrwt 9 root wheel 288 13 Jan 14:30 Shared
drwxr-xr-x+ 148 Santi staff 4736 1 Apr 17:13 pro
then I enter chmod 775 pro/
It doesnt seem to change the permssions. What can I do to fix this or why is the folder restricting permission even though I appear to be root?
drwxr-xr-x+ ...
the final + means that the file is governed by acl
see
apropos acl : give you the mans to consult
wikipedia
Access Control Lists on Arch wiki
I'm checking an alternative to 'find' command in shell scripting so as to eliminate the discrepancy of Accessed date of sub directories.
According to my observation, when find command is executed to list all the files in a directory, the accessed date of sub-directories is getting changed.
I want to post genuine statistics in one of the junk platforms, So I have been looking at some forums and got the alternative with 'ls' command. But that doesn't completely fulfill my request.
Below is the answer given by #ghostdog74.
ls -R %path% | awk '/:$/&&f{s=$0;f=0} /:$/&&!f{sub(/:$/,"");s=$0;f=1;next} NF&&f{ print s"/"$0 }'.
But this finds only the files inside the sub directories. I need all the files and sub-directories' files to be listed.
For example:
bash-3.2# pwd
/Users/manojkapalavai/Desktop/SleepTimeReport
bash-3.2# ls
**6th floor** manoj17 manoj26.txt manoj36 manoj45.txt manoj55 manoj70.txt manoj80 manoj9.txt **test1**
manoj14 manoj23.txt manoj33 manoj42.txt manoj52 manoj61.txt manoj71 manoj80.txt manoj90 **test2**.
The highlighted ones are sub-directories inside "SleepTimeReport" directory and remaining are just files. So, when I execute the above command, I get only the below output.
bash-3.2# ls -R ~/Desktop/SleepTimeReport | awk '/:$/&&f{s=$0;f=0} /:$/&&!f{sub(/:$/,"");s=$0;f=1;next} NF&&f{ print s"/"$0 }'.
~/Desktop/SleepTimeReport/6th floor/Script to increase the Sleep Time.numbers.
~/Desktop/SleepTimeReport/6th floor/Zone1Sleep.pages.
~/Desktop/SleepTimeReport/test1/New_folder.
~/Desktop/SleepTimeReport/test1/manoj.txt.
~/Desktop/SleepTimeReport/test1/sathish.txt.
~/Desktop/SleepTimeReport/test1/vara.txt.
~/Desktop/SleepTimeReport/test1/New_folder/Script to increase the Sleep Time.numbers.
~/Desktop/SleepTimeReport/test1/New_folder/Zone1Sleep.pages.
i.e.; only those files inside sub-directories are listed.
Brief explanation of what issue I'm facing, please see below
Manojs-MacBook-Pro:SleepTimeReport manojkapalavai$ ls -l
total 16
drwxr-xr-x 8 manojkapalavai staff 272 Sep 14 15:07 6th floor
-rwxr-xr-x 1 manojkapalavai staff 59 Nov 13 10:41 AltrFind.sh
-rw-r--r-- 1 manojkapalavai staff 0 Nov 2 15:15 manoj%.txt
-rw-r--r-- 1 manojkapalavai staff 0 Nov 2 18:23 manoj1
When I try finding Created time and Accessed Time of the folder 6th floor before using 'find' command, the below is output.
Manojs-MacBook-Pro:SleepTimeReport manojkapalavai$ stat -f '%N, %SB, %Sa' 6th\ floor/
6th floor/, Sep 13 10:34:55 2017, **Nov 13 11:21:33 2017**
Manojs-MacBook-Pro:SleepTimeReport manojkapalavai$ find /Users/manojkapalavai/Desktop/SleepTimeReport/
/Users/manojkapalavai/Desktop/SleepTimeReport/
/Users/manojkapalavai/Desktop/SleepTimeReport//6th floor
/Users/manojkapalavai/Desktop/SleepTimeReport//6th floor/.DS_Store
/Users/manojkapalavai/Desktop/SleepTimeReport//6th floor/Script to increase the Sleep Time.numbers
/Users/manojkapalavai/Desktop/SleepTimeReport//6th floor/Zone1Sleep.pages
Now, after finding all the files inside a directory, below is the output of atime. you can notice the change
Manojs-MacBook-Pro:SleepTimeReport manojkapalavai$ stat -f '%N, %SB, %Sa' 6th\ floor/
6th floor/, Sep 13 10:34:55 2017, **Nov 13 14:26:03 2017**
All tha I have done is just find the files, and atime of sub-folders inside a folder when we find is getting changed to that current time.
Is there any way to solve this?
ls is the wrong tool for programmatic use. Generally, you should be able to fix your find usage to not have an effect on atimes (actually, it's pretty rare for folks to even have atimes enabled at the filesystem level on modern production systems), but if you really want to avoid it, consider the bash globstar option:
shopt -s globstar
for file in **/*; do
echo "Doing whatever with $file"
done
I have the following bash script:
#!/bin/bash
run_python(){
cd "`dirname $1`"
python "`basename $1`" $2 >test.log
}
crypto_util=/home/dev/src/crypto/util.py
run_python $crypto_util "testpassword"
Somehow cd command fails saying:
cd: /home/dev/src/crypto No such file or directory. I am quite sure the directory exists.
On a side note if I do the following this fails too:
run_python(){
python "$1" $2 >test.log
}
Saying python can not open the file /home/dev/src/crypto/util.py because there is no such file.
Any idea why?
Here is the output of the ll command on the directory/file:
drwxr--r--. 2 dev root 4096 Jun 11 18:56 crypto
-rwxr--r--. 1 dev root 4934 Jun 9 10:50 util.py
Output of ls -llid /home/
654084 drwxr-xr-x. 4 root root 4096 May 8 10:52 /home
Output of ls -lid /home/dev/
924265 drwxr--r--. 4 dev root 4096 Jun 9 09:17 /home/dev/
Output of ls -lid/home/dev/src/:
924266 drwxr--r--. 9 dev root 4096 Jun 9 10:01 /home/dev/src/
Output of ls -lid/home/dev/src/crypto:
924333 drwxr--r--. 2 dev root 4096 Jun 11 18:56 /home/dev/src/crypto/
Output of ls -lid/home/dev/src/crypto/util.py:
924337 -rwxr--r--. 1 dev root 4934 Jun 9 10:50 /home/dev/src/crypto/util.py
some of those dirs don't have x permission bit set - those are needed for entering a directory. Your problem may be that your scripts are running with another user as owner than "dev". dev is the only user allowed to change to those directories.
Set the dirs to +x, and try again.
In terminal, I want to make a bunch of folders appear in a certain order. It isn't alphabetical, but in an unrelated order. When I do this:
mkdir this folder is going to be
The folders all show up correctly in Finder, but alphabetized. I have confirmed that the folder's view options are set to Sort By: None, Arrange By: None.
Is there a different way to accomplish this?
If you really want "no order" you will get unpredictable results. Seems like you want file creation date or file modification date (oldest first) order.
This command:
$mkdir this folder is going to be
is misleading, because you have no idea what algorithm 'mkdir' is using internally to create the folders (unless you read the source), so no idea what order is actually going to result, from the point of view of the filesystem (its not the order you expect).
To be clearer, you need to issue the command once per file
$ mkdir this
$ mkdir folder
$ mkdir is
$ mkdir going
$ mkdir to
$ mkdir be
then you can list in reverse modified-date order:
$ ls -tr
this folder is going to be
$ ls -ltr
total 0
drwxr-xr-x 2 user staff 68 6 Jan 20:41 this
drwxr-xr-x 2 user staff 68 6 Jan 20:41 folder
drwxr-xr-x 2 user staff 68 6 Jan 20:41 is
drwxr-xr-x 2 user staff 68 6 Jan 20:41 going
drwxr-xr-x 2 user staff 68 6 Jan 20:41 to
drwxr-xr-x 2 user staff 68 6 Jan 20:41 be
on the native mac filesystem hfs+ there is also a 'creation date' flag, which is probably what you want, but this is not very portable across other filesystems.
IN the finder, arrange by > date created
or arrange by > none, view in list view, with 'date created' column showing, and click on it.
You can't; folders are inherently not ordered.