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Hello Ramneekgupta91,

Could you please try following(tested with GNU awk).

awk --re-interval '{match($0,/[0-9]{4}-[0-2][0-9]-[0-9]{2} [0-2][0-9]:[0-5][0-9]:[0-5][0-9].*/);print...

I'm afraid you can't remove the search pattern from grep's result. Either use a different pattern ( e.g. "[ttp" ), or use a different tool ( like sed or awk )

What's wrong with cat access_log2016-08-24???.log > access_log2016-08-24.log?

To the shell, < is the input redirection operator. To use it in comparisons, you need to escape it:
if [ "$date1" \< "$date2" ]; then echo 'yes'; fi
yes

Or even
if [ "$date1 < $date2" ];...

Hello Ramneekgupta91,

I think you should remove - from command -60 min ago so only it will give time and date before 60 mins else it is giving 60 mins after time(you could take it as a maths...

Shell variables are not expanded when they appear inside a single-quoted string. Use double quotes instead of single quotes:
date --date "-$var min ago" +'%Y-%m-%d %H:%M:%S,%3N'

Let me see if I understand this. You have three scripts that do something or nothing and they do whatever they do faster if you run them in parallel than if you run them serially. And, you want us...

Hello,
use YUM :

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12.2. yum Commands

yum commands are typically run as yum <command> <package name/s>.
By default, yum will automatically attempt to check all configured...