I have a server with a webapp and a mail server (who use sendmail to route mails). We need to migrate the webapp to an auto-scaling schema, so, I can’t have the mail server in there, so, I’m thinking on leaving the mail server right where it is now. So, to send mails I have different alternatives,…
Azure CosmosDB on Linux
is there a way I can run a CosmosDB emulator on a Linux machine? I need to setup a development environment for Azure Functions projects. There is a solution for storage (Azurite), I wonder I can find the same for CosmosDB. (Running a virtual machine is not an option for this case) Answer The short answer: Tod…
sed for print two different word alernatively
I have a requirement to print two different words in alternative white spaces in the file. For example, The above scenario, I want print ab and /ab alternatively like below: *I want this one by one in a line by line format(Not horizontal format).*I know sed ‘s|^[[:blank:]]*$|</ab>|’ this com…
Not able to install Docker compose in Linux
I am not able to install docker compose on my Linux system.getting below error after running installation command: Can anyone please help me out? I tried sudo apt-get clean as well but no use Answer I think the easiest way to install docker-compose is via pip:
find: missing argument to -exec with ssh
Trying to remove directories from server: I tried with ; and ;; and ; and “{}” and -exec sh -c ‘rm -r “{}”‘ ; All get’s the error find: missing argument to “-exec’” Thanks Answer Directly running commands with ssh is often hard to impossible when you want …
How to configure the find command to run in a Linux shell script?
I am trying to run the following find command in a Linux shell script. When I run the command in the terminal, it successfully finds all the files with the extension .mp4 from the specified folder, and copies them to a temp folder. However, when I run it in my file_mover.sh Code: Output: I think I’m mis…
Cannot insert breakpoints. Addresses with low values
I’m trying to debug this simple C program: But when I disassemble the main function I get this: And this is already pretty strange because addresses starts with a prefix of 4… for 32 bit executables and 8… for 64 bit executables I think. But going on I then put a breakpoint: I run it and I g…
Unnamed unix domain socket has wrong address length
When reading the address of a sending unix datagram domain socket in this minimal example program, I am getting an address length of 0, but the man page for unix domain sockets specifies that: unnamed: A stream socket that has not been bound to a pathname using bind(2) has no name. Likewise, the two sockets c…
Why does loading the libc shared library have “‘LibraryLoader’ object is not callable” error?
From https://en.wikipedia.org/wiki/Foreign_function_interface the ctypes module can load C functions from shared libraries/DLLs on-the-fly and translate simple data types automatically between Python and C semantics as follows: On Lubuntu 18.04 I was wondering why loading the libc shared library has “&#…
Regex -> match a number between 000001 and 999999
I’m on Linux and I need to do an expr in order to match 6 digits with this range : 000001 to 999999 I’m stuck with ‘[0-9]{5}[1-9]’ but I can’t match numbers which end with 0 like 000010 I was thinking about ‘[0-9]{6}|?![0]{6}’ in order to eliminate “000000”…