Hide Password Entry in UNIX script:

-
We can use 'stty' to hide the password entry in UNIX command prompt, which is like entering password when you login to the UNIX.

stty:
'stty' sets options for your terminal


Ex :
  • stty erase \^h --- set the backspace as erase key
  • stty sane
  • stty


Example Script:


#!/bin/ksh
echo "Please enter the pwd:"
stty -echo
read pwd
stty echo
if [ "$pwd" == "secret" ]; then
echo "u have access"
else
  echo "access denied"
fi

Popular posts from this blog

Shrink you container size up to 95%.

-
BLAFS is a bloat-aware filesystem for container debloating. The design principles of BLAFS are effective, efficient, and easy to use. It detects the files used by the container, and then debloats the container by removing the unused files. The debloated containers are still functional and can run the same workload as the original containers, but with a much smaller size and faster deployment. https://github.com/negativa-ai/BLAFS?tab=readme-ov-file
Read more

alma linux: dnf Module yaml error: Unexpected key in data

-
While applying recent updates to a server running Rocky Linux 8, an error presented itself. Module yaml error: Unexpected key in data: static_context [line 9 col 3] Module yaml error: Unexpected key in data: static_context [line 9 col 3] The solution turned out to be a simple one. Update the libmodulemd first to correct the problem then perform the dnf updates as usual. dnf update libmodulemd For a detailed explanation as to the cause of this problem.
Read more