如何将MySQL查询的输出保存到MS Excel表？
即使只能将数据存储在.txt文件中,也没关系.
set -o pipefailshell脚本开头的是什么意思？
我编写了一个简单的playbook来打印java进程ID和该PID的其他信息
[root@server thebigone]# cat check_java_pid.yaml
---
- hosts: all
gather_facts: no
tasks:
- name: Check PID of existing Java process
shell: "ps -ef | grep [j]ava"
register: java_status
- debug: var=java_status.stdout
而当我打电话给它时ansible-playbook check_java_pid.yaml它工作正常.
现在我试图从另一个上面调用上面的剧本,但只针对一个特定的主持人.所以我写了第二部剧本如下
[root@server thebigone]# cat instance_restart.yaml
---
- hosts: instance_1
gather_facts: no
tasks:
- include: check_java_pid.yaml
但在做的时候ansible-playbook instance_restart.yaml,我遇到了错误
ERROR! no action detected in task. This often indicates a misspelled
module name, or incorrect module path.
The error appears to have been in
'/home/root/ansible/thebigone/check_java_pid.yaml': line …我正在学习Perl,非常新用户.我可以知道这些Perl代码之间的区别.
#!/usr/bin/perl
&
#!/usr/bin/perl -w
我正在尝试pyping为Python 3 导入，但出现以下错误：
virt01@virt01:~/Python_Admin$ python3
Python 3.4.3 (default, Oct 14 2015, 20:28:29)
[GCC 4.8.4] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyping
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python3.4/dist-packages/pyping/__init__.py", line 3, in <module>
from core import *
ImportError: No module named 'core'
>>>
更新1
virt01@virt01:~/Python_Admin$ ls /usr/local/lib/python3.4/dist-packages/pyping/
core.py __init__.py __pycache__
下面是我的烧瓶代码
from datetime import datetime
from logging import DEBUG
from flask import Flask , render_template , url_for , request , redirect
app = Flask ( __name__ )
app.logger.setLevel ( DEBUG )
bookmarks = [ ]
def store_bookmarks (url):
bookmarks.append ( dict (
url=url ,
user="rgen" ,
date=datetime.utcnow ()
) )
@app.route ( '/' )
@app.route ( '/index' )
def index ( ):
# return "Hello World!"
return render_template ( 'index.html' )
@app.route('/add', methods=['GET', 'POST'])
def add():
if request.method=="POST":
url=request.form['url']
store_bookmarks(url) …你好我有一个带有List加字典的python变量
>>> print (b[0])
{'peer': '127.0.0.1', 'netmask': '255.0.0.0', 'addr': '127.0.0.1'}
-----------------------------------------------------------------------
>>> print (b)
[{'peer': '127.0.0.1', 'netmask': '255.0.0.0', 'addr': '127.0.0.1'}]
>>>
我已经尝试了一切但我无法'addr'提取.
请帮忙.
我实际上正在阅读Oracle-cx_Oracle教程.
在那里我遇到了非汇集连接和DRCP,基本上我不是DBA所以我用谷歌搜索但是找不到任何东西.
那么有人可以帮助我理解它们是什么以及它们彼此之间的差异.
谢谢.
由于内核损坏，我遇到了磁盘空间不足（100％）的问题。当我用Google搜索时，已从version-2和中删除了所有快照datalog/version-2。
现在/var/zookeeper只有myid文件和__backup文件夹。
当我尝试启动Zookeeper时，出现以下错误
2016-06-12 12:43:36,512 [myid:4] - ERROR [main:FileTxnSnapLog@210] - Parent /search/cluster1/overseer/queue missing for /search/cluster1/overseer/queue/qn-0000000288
2016-06-12 12:43:36,514 [myid:4] - ERROR [main:QuorumPeer@453] - Unable to load database on disk
java.io.IOException: Failed to process transaction type: 1 error: KeeperErrorCode = NoNode for /search/cluster1/overseer/queue
at org.apache.zookeeper.server.persistence.FileTxnSnapLog.restore(FileTxnSnapLog.java:153)
at org.apache.zookeeper.server.ZKDatabase.loadDataBase(ZKDatabase.java:223)
at org.apache.zookeeper.server.quorum.QuorumPeer.loadDataBase(QuorumPeer.java:417)
at org.apache.zookeeper.server.quorum.QuorumPeer.start(QuorumPeer.java:409)
at org.apache.zookeeper.server.quorum.QuorumPeerMain.runFromConfig(QuorumPeerMain.java:151)
at org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:111)
at org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:78)
Caused by: org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /search/cluster1/overseer/queue
at org.apache.zookeeper.server.persistence.FileTxnSnapLog.processTransaction(FileTxnSnapLog.java:211)
at org.apache.zookeeper.server.persistence.FileTxnSnapLog.restore(FileTxnSnapLog.java:151)
... 6 more …我有10个文件.我可以列出它们,find . -type f我想要实现的是在使用find命令找到它们之后向所有10个文件发送消息.
我试过的, find . -type f -exec echo "This file found" >> {} \;
可能逻辑上我是对的,但它不起作用.有什么方法可以实现使用find和echo只有？
谢谢