By using “last” command without an option, the login time period is displayed as

Question

By using “last” command without an option, the login time period is displayed as follow:

$ last | grep "Oct 20" | head -2

cfs264fa pts/3 c-68-46-14-229.h Tue Oct 20 23:24 - 23:47 (00:22)

cfs264fa pts/0 c-68-46-14-229.h Tue Oct 20 22:51 - 23:24 (00:33)

Please find a proper option, using “man last,” so that the full login date/time information can be displayed as

follow:

$ last __________ | grep "Oct 20" | head -2

cfs264fa pts/3 c-68-46-14-229.h Tue Oct 20 23:24:36 2015 - Tue Oct 20 23:47:28 2015 (00:22)

cfs264fa pts/0 c-68-46-14-229.h Tue Oct 20 22:51:11 2015 - Tue Oct 20 23:24:38 2015 (00:33)

Explanation / Answer

$ last -t | grep "Oct 20" | head -2

The last -t which is used to display the full login with year month date hours minutes and seconds. The grep command which is used to display a particular string line in a file and the head command which is used to display the top lines of output.

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