Read the file inside compressed .gz files without extract I would like to share 3 simple commands by which U can read the files inside the compressed .gz file without extracting. For eg.We have a log file called test.log and we compressed it by using command “gzip test.log” .It will compressed the file into test.log.gz … Read more
In ESX , passwd: authentication information cannot be recovered The ESX box has AD authentication. I was getting error when I am trying to reset user password by using command “passwd user_name” Whenever U get this error “passwd: authentication information cannot be recovered”,it means something is wrong in ur some /etc/pam.d files. In my case … Read more
df not showing correct free space in linux In this post,I am sharing the troubleshooting. When we find the disk is full,we generally remove the files from that partition.Sometimes it is also observed that after removing files from the partiton. The df -h command,still shows partition is full. For this problem,follow the given below steps … Read more
In this post we are sharing the script to change group from a file having list of users. You can do the changes in script as per your requirement. The script is also using the /etc/group file to validate group names which could be existing in user supplied group file. Given below is the sample … Read more
In this post learn how to set and reset user password by bash script on Linux systems. It is quite good for Linux System Admin who wants to know how to set and reset user account password with bash script. We have used the standard input (stdin) with passwd command. Advantage: 1. Get the list … Read more
In this post we will learn how to customize the nologin shell message for user on linux/unix system. This is very useful when you want to display your company strict legal security message to users who are trying to login into your servers. As we know that , nologin shell won’t allow user to login … Read more