Finding files in Unix based on specific criteria

FIND FILES THAT WERE MODIFIED/ACCESSED WITHIN A SPECIFIED TIME

            $   find  /<your path>  -mtime   1  -type   f 

This command would return files modified  in the last 24 hours .
You can use -mtime option to return a list of files that were last modified N*24 hours ago. For example to find a file in last month (30 days) you would need to use -mtime +30 options.

• -mtime +30   means you are looking for a file modified 30 days ago.
• -mtime -30    means less than 30 days.
• -mtime 30      If you skip + or - it means exactly 30 days

      -type f      searches only for files and not directories

To list the files in the directory tree that were modified within the past five minutes, type

$  find /<your path>  -mmin -5

To return a list of files that were accessed in the last 24 hours you would need to use the –atime option.

$  find  /<your path>   -atime   1  -type   f 

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FINDING FILES WITH A SPECIFIC EXTENTION WITHIN A DIRECTORY

         $  find   /<your path>   -name  "*.cfg"

The command –name matches the file names with the specified pattern

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FINDING FILES BASED ON THE FILE-PERMISSIONS

Files with execute permission for group :

$ find /<your path>  -perm g=x   -type f 

Files with execute permission for others:

$ find /<your path>  -perm  o=x   -type f

Where ‘g’ denotes groups and ‘o’ denotes others. x denotes execute permission.

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KILLING ACTIVE UNIX PROCESSES FOR SPECIFIC COMPONENTS

ps -ef |grep applmgr |grep <Component Name> |grep -v grep |awk '{print $2}' |xargs kill -9

For example to kill all active forms processes, we can use the following command:


ps -ef |grep applmgr |grep frm | grep -v grep |awk '{print $2}' |xargs kill -9