Shell script

        send mail using telnet from script
        
       2017/12/25 
        
      If you have no other option but to use telnet with authentication to send mail 🙂

        change the output format for time command
        
       2016/08/16 
        
      If you are doing some scripting and using ‘time’ command, then you know sometimes it becomes difficult to capture the output as the output would be something like this:
: amit ; time ls real 0m0.002s …
      
        bash refer parameters from the current command
        
       2014/09/15 
        
      In bash you can use
!#
to refer to any parameter from the current command, example:

        Home grown mail scheduler with bash script and cron
        
       2013/10/04 
        
      If you are using Linux (Fedora/Ubuntu or anything else) then you do get a lot of tools and one of them is cron. Very very useful. Just write some script that can do the task for you, put it in cron …
      
        Delete all but some directories
        
       2013/08/16 
        
      I think, like me, you would have faced a lot of situations, where you wanted to delete all the files or directories in a location, leaving only the required files/directories. So, I have a directory …
      
        convert tabs to spaces, the easy way
        
       2013/07/08 
        
      Lots of times you want to convert tabs to spaces and sometimes from a shell script, if that is the case, then simple solution is “tidy“. First you need to install tidy as follows:
sudo yum install …

        quick bash script for datewise backup of directory
        
       2012/12/12 
        
      I was working on something and the data was very critical and needed backup. I wrote a bash script to back up the data every 5 hours with cron and bash script. Thought I will share that with you. Here …
      
        15 Linux Bash History Expansion Examples You Should Know
        
       2012/03/02 
        
      Here is a nice link on BASH History Expansion. There are lot of examples in this page and some of them might be quite useful. But here are my list of favourites:
!! This is probably the most used one …
      
        Unix shell script for removing duplicate files
        
       2011/05/16 
        
      The following shell script finds duplicate (2 or more identical) files and outputs a new shell script containing commented-out rm statements for deleting them (copy-paste from here):
::: updated on 02 …

        Shell Scripting
        
       2011/01/05 
        
      Here are some links for bash programming that you may find useful.
http://tips-linux.net/en/content/pro-bash-programming
http://tips-linux.net/en/content/expert-shell-scripting …
      
        mussh - Multihost SSH wrapper
        
       2010/05/25 
        
      Description:
[…] Mussh is a <a class="zem_slink freebase/en/shell_script" title="Shell script" rel="wikipedia" …
      
        Awk Introduction Tutorial – 7 Awk Print Examples
        
       2010/05/19 
        
      awk examples
Awk Introduction Tutorial – 7 Awk Print Examples This is the first article on the new awk tutorial series. We’ll be posting several articles on awk in the upcoming weeks that will cover …

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