Linux problem accumulation __linux

There was a problem today, the Tomcat restart on Linux failed, because it was a bit of a surprise to have to reboot the server and not do any extra commands.

Later ready to upgrade Tomcat, upload installation package when found that the storage space is not enough to find the Linux server storage space has been basically no ... To find the problem is good to do, is to delete the chant.

To view the disk Space command: DF-LH

Today's newly learned Linux command:

View Indicator usage: top

Reboot: Shutdown-r now or reboot

To view the contents of a file:

Tailf/home/.../task.log: Show all current time to start updating content

Tail-n +123/home/. /task.log: Displays content starting with 123 lines

Sed-n ' 123,456p '/home/. /task.log: Displays the contents of the search file from 123 lines to 456 lines:
grep-n [']keyvalue[']/home/. /task.log: Search KeyValue
Grep-n +12345 [']keyvalue[']/home/. /task.log: Search keyvalue from 12345 lines

Exit current command: CTRL + C

viewing boot ports: netstat-tln

Tail-n-A digital file name that represents the last few lines of the view file, such as viewing the last 5 lines of specialvariable.sh, Tail-n-5 specialvariable.sh, as shown below

Tail-n + numeric file name to view a row of the file to the last line, such as viewing the 3rd line of Specialvariable.sh to the last line, Tail-n +3 specialvariable.sh, as shown below

Head-n a digital file name to view the contents of the first few lines of the file, such as viewing the first 3 lines of specialvariable.sh, Head-n 3 specialvariable.sh, as shown below

Split file

Split-b 10k Date.file-d-a 3 split_file

Show file list: ls