Linux commands in-memory

Empower command: chmod 755 *

Query process:

PS-EF |grep ABC view activity process with "ABC"

PS-EF |grep-v ABC to view activity processes that do not contain ABC

Ps-ef |grep crontab View active processes with "crontab"

Go to the root directory:

CD ~

Back to Parent directory:

Cd..

View the last 200 rows of data in the log "Mmm_20150515.log":

TAIL-200F Mmm_20150515.log

To have cron perform the tasks you specify, you first need to edit the crontab file. Crontab is a text file that is used to store the commands you want to run. You can have the following commands

Crontab-e

To open the crontab file that your user belongs to. The first time you use this command, you will be asked to select a text editor, and I choose Vim. The selected editor can also use the

Select-editor

command to change. There are enough hints in this command line

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Linux commands in-memory