How to view Tomcat running log in real time under Linux _linux

1, first switch to: CD usr/local/tomcat5/logs

2, Tail-f Catalina.out

3, this operation can be real-time view of the running log

CTRL + C is the exit Tail command.

By the way, Linux tail commands

The tail command writes the file to the standard output from the specified point. Using the-f option of the tail command makes it easy to refer to the changing log file, Tail-f filename will display the tail contents of the filename on the screen, and not only refresh, so that you see the latest file content.

1. command format;

tail[necessary parameters [select parameters] [file]

2. Command function:

Used to display the content at the end of a specified file and to process it as input when no file is specified. Common view log files.

3. Command parameters:

-F Loop Read
-Q does not display processing information
-V Display detailed processing information
Number of-c< > bytes displayed
-n< number of rows > show rows
--pid=pid is shared with-F, which ends after the process id,pid dead.
-Q,--quiet,--silent never output the header of the filename
-S,--sleep-interval=s is shared with-F, which means sleeping s seconds at each repeated interval

4. Use instance:

Example 1: Display the end of a file

Command:

Tail-n 5 Log2014.log

Output:

[Root@localhost test]# tail-n 5 log2014.log 2014-09 2014-10 2014-11 2014-12 ==================
============[root@localhost test]#

Description

Display the last 5 lines of the file

Example 2: Looping through the contents of a file

Command:

Tail-f Test.log

Output:

[root@localhost ~]# ping 192.168.120.204 > Test.log &
[1] 11891[root@localhost ~]# tail-f test.log 
Ping 19 2.168.120.204 (192.168.120.204) bytes of data.
Bytes from 192.168.120.204:icmp_seq=1 ttl=64 time=0.038 ms bytes from
192.168.120.204:icmp_seq=2 ttl=64 .036 ms
bytes from 192.168.120.204:icmp_seq=3 ttl=64 time=0.033 ms-bytes from
192.168.120.204:icmp_seq=4 t tl=64 time=0.027 ms
bytes from 192.168.120.204:icmp_seq=5 ttl=64 time=0.032 ms-bytes from
192.168.120.204: Icmp_seq=6 ttl=64 time=0.026 ms
bytes from 192.168.120.204:icmp_seq=7 ttl=64-time=0.030 ms bytes from
192. 168.120.204:icmp_seq=8 ttl=64 time=0.029 ms
bytes from 192.168.120.204:icmp_seq=9 ttl=64 Ms
Ytes from 192.168.120.204:icmp_seq=10 ttl=64 time=0.033 Ms
-bytes from 192.168.120.204:icmp_seq=11 ttl=64. 027 Ms
[Root@localhost ~]#

Description

Ping 192.168.120.204 > Test.log &//Ping the remote host in the background. and output files to Test.log; this practice is also used for more than one file monitoring. Use CTRL + C to terminate.

Example 3: Displaying files starting at line 5th

Command:

Tail-n +5 Log2014.log

Output:

[Root@localhost test]# cat Log2014.log 
2014-01 2014-02 2014-03 2014-04 2014-05
2014-06
2014-07
2014-08
2014-09
2014-10
2014-11
2014-12 = =
[root@localhost test]# tail-n +5
log2014.log
2014-05
2014-06 2014-07 2014-08 2014-09
2014-10
2014-11
2014-12
==============================

The above is a small series for everyone to bring the Linux real-time view Tomcat run log method of all content, I hope that we support cloud Habitat Community ~