Max file size in Linux and Last 10 users logins in putty

Find the Max file size in Linux and Last 10 users logins in putty:

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Find the Max file size:

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[applmgr@xxxxx out]$ ls -lSr
-rwxrwxrwx 1 applmgr oinstall    3703635 Jun  6 15:45 o5829172.out
-rwxrwxrwx 1 applmgr oinstall    3703635 Jun  6 15:04 o5829155.out
-rwxrwxrwx 1 applmgr oinstall    3703635 Jun  5 19:38 o5828959.out
-rwxrwxrwx 1 applmgr oinstall    3703635 Jun  5 19:38 o5828958.out
-rwxrwxrwx 1 applmgr oinstall    3703635 Jun  5 16:44 o5814026.out
-rwxrwxrwx 1 applmgr oinstall    3704017 Jun  3 16:18 o5812462.out
-rw-r--r--     1 applmgr oinstall    4203665 Jun 21 10:39 o5833173.out
-rw-r--r--      1 applmgr oinstall   4212642 Jun 24 11:48 o5833667.out
-rw-r--r--     1 applmgr oinstall    4790961 Jun 21 10:39 o5833174.out

last 10 Users Connected in Putty:

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[applmgr@xxxxxx out]$ last -10
applmgr    pts/3        192.168.1.135       Mon Jul  1 09:59   still logged in
root          pts/4        192.168.1.139        Sat Jun 29 11:49 - 11:53  (00:04)
root          pts/3        :1.0                         Sat Jun 29 11:45 - 11:53  (00:08)
root          pts/2        :0.0                         Fri Jun 28 22:31   still logged in
root          pts/1        :0.0                         Fri Jun 28 16:00   still logged in
oracle       pts/1        192.168.1.135        Fri Jun 28 15:02 - 15:29  (00:26)
applmgr   pts/1        192.168.1.135        Thu Jun 27 22:22 - 04:33  (06:11)
root          pts/1        192.168.1.135        Thu Jun 27 17:35 - 18:27  (00:52)
applmgr   pts/1        192.168.1.135         Thu Jun 27 14:50 - 15:05  (00:15)
root         pts/1        192.168.1.150         Wed Jun 26 20:15 - 20:34  (00:19)