我正在使用此代码来计算目录中以's'结尾的文件数.
def count=0
def p = ~/.*s/
new File("c:\\shared").eachFileMatch(p) { file->
println file.getName().split("\\.")[0]
count++
}
print "$count"
如果有办法避免temp变量并在File类本身使用一些方法？
谢谢
我使用Perl单行创建一个SQL语句,但我不能包含单引号.
这就是我想要的:首先提交并添加引号.
echo "a,b" | perl -F',' -lane 'print $F[0];'
'a'
我尝试了几种不同的方法,但它对我不起作用.
1.
echo "a,b" | perl -F',' -lane 'print qq('$F[0]');'
[0]
2.
echo "a,b" | perl -F',' -lane 'print q('$F[0]');'
[0]
这是另一个有趣的.
它使用print语句打印单引号,但如果我为变量赋值并打印它不起作用.
perl -lwe "print q( i'am );"
i'am
perl -lwe "$b=q( didn't ); print $b"
你能帮助我理解我们如何在Perl单行中使用单引号和双引号？
我datetime在表中有一列包含以下数据:
2011-03-23
2011-04-19
2011-04-26
2011-05-26
我想选择mon-yyyy按报告日期降序排序的不同格式输出.我们需要在SQL语句中只选择一列
这个SQL有效,但我想按ReportDate列排序
SELECT distinct SUBSTRING (convert(varchar, ReportDate, 100),1,3) +'-'+
SUBSTRING (convert(varchar, ReportDate, 100),8,4 )
FROM [EnvelopsDB].[dbo].[Envelopes]
产量
Apr-2011
Mar-2011
May-2011
这个SQL给出了一个错误:
SELECT distinct SUBSTRING (convert(varchar, ReportDate, 100),1,3) +'-'+
SUBSTRING (convert(varchar, ReportDate, 100),8,4 )
FROM [EnvelopsDB].[dbo].[Envelopes]
order by ReportDate
错误:
如果指定了SELECT DISTINCT,则消息145,级别15,状态1,行2 ORDER BY项目必须出现在选择列表中.
什么是获得我需要的输出的最佳SQL查询？
我有一个perl progaram它的打印输出颜色.如果我重新扫描文件中的输出并在vi中打开它,我会看到颜色特殊字符.这样的事情.
^[[31;43mAnd this is red on_yellow too^[[0m
从输出文件中删除此颜色字符的最佳方法是什么？
谢谢
更新:
我尝试了正则表达式.这个对我有用:
cat -v a|head
^[[30;41mThis is black on_red^[[0m
^[[30;41mAnd this is black on_red too^[[0m
^[[30;42mThis is black on_green^[[0m
^[[30;42mAnd this is black on_green too^[[0m
^[[30;43mThis is black on_yellow^[[0m
^[[30;43mAnd this is black on_yellow too^[[0m
^[[30;44mThis is black on_blue^[[0m
^[[30;44mAnd this is black on_blue too^[[0m
^[[30;45mThis is black on_magenta^[[0m
^[[30;45mAnd this is black on_magenta too^[[0m
$ cat -v a|head|perl -lane 's/\^\[\[\d+(;\d+)*m//g; print'
This is black on_red
And this is black …我想让docker从systemd cgroup驱动程序开始。由于某些原因，它仅在我的centos 7服务器上使用cgroupfs。
这是启动配置文件。
# systemctl cat docker
# /usr/lib/systemd/system/docker.service
[Unit]
Description=Docker Application Container Engine
Documentation=http://docs.docker.com
After=network.target
Wants=docker-storage-setup.service
Requires=docker-cleanup.timer
[Service]
Type=notify
NotifyAccess=all
EnvironmentFile=-/etc/sysconfig/docker
EnvironmentFile=-/etc/sysconfig/docker-storage
EnvironmentFile=-/etc/sysconfig/docker-network
Environment=GOTRACEBACK=crash
Environment=DOCKER_HTTP_HOST_COMPAT=1
Environment=PATH=/usr/libexec/docker:/usr/bin:/usr/sbin
ExecStart=/usr/bin/dockerd-current \
--add-runtime docker-runc=/usr/libexec/docker/docker-runc-current \
--default-runtime=docker-runc \
--exec-opt native.cgroupdriver=systemd \
--userland-proxy-path=/usr/libexec/docker/docker-proxy-current \
$OPTIONS \
$DOCKER_STORAGE_OPTIONS \
$DOCKER_NETWORK_OPTIONS \
$ADD_REGISTRY \
$BLOCK_REGISTRY \
$INSECURE_REGISTRY
ExecReload=/bin/kill -s HUP $MAINPID
LimitNOFILE=1048576
LimitNPROC=1048576
LimitCORE=infinity
TimeoutStartSec=0
Restart=on-abnormal
MountFlags=slave
[Install]
WantedBy=multi-user.target
# /etc/systemd/system/docker.service.d/docker-thinpool.conf
[Service]
ExecStart=
ExecStart=/usr/bin/dockerd --storage-driver=devicemapper --storage-opt=dm.thinpooldev=/dev/mapper/docker-thinpool \
--storage-opt=dm.use_deferred_removal=true --storage-opt=dm.use_deferred_deletion=true
EOF
当启动docker这样运行时：
# ps -fed |grep docker …我想将 windows 目录压缩为 zip 文件。存档功能不起作用。
对于 Windows，我看到了win_unzip模块，但我没有找到win_zip模块。
我们如何在 Windows 中备份现有文件夹？
- name: Backup existing install folder to zip
archive:
path:
- "{{ installdir }}"
dest: "{{ stragedir }}\\{{ appname }}.zip"
format: zip
错误：
[WARNING]: FATAL ERROR DURING FILE TRANSFER: Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/ansible/plugins/connection/winrm.py", line 276, in _winrm_exec
self._winrm_send_input(self.protocol, self.shell_id, command_id, data, eof=is_last) File "/usr/lib/python2.7/site-packages/ansible/plugins/connection/winrm.py", line 256, in
_winrm_send_input protocol.send_message(xmltodict.unparse(rq)) File "/usr/lib/python2.7/site-packages/winrm/protocol.py", line 256, in send_message raise
WinRMOperationTimeoutError() WinRMOperationTimeoutError
谢谢 SR
RookIO 1.4我在 Kubernetes 1.18 中设置了集群。有 3 个节点，每个节点分配了 1TB 存储。\n创建集群后。当我运行时，ceph status集群状态显示HEALTH_WARN为mon c is low on available space。
尚未存储任何数据。为什么可用空间状态这么低？如何清除这个错误？
\n[root@rook-ceph-tools-6bdcd78654-sfjvl /]# ceph status\n cluster:\n id: ad42764d-aa28-4da5-a828-2d87205aff08\n health: HEALTH_WARN\n mon c is low on available space\n\n services:\n mon: 3 daemons, quorum a,b,c (age 37m)\n mgr: a(active, since 36m)\n osd: 3 osds: 3 up (since 37m), 3 in (since 37m)\n\n data:\n pools: 1 pools, 1 pgs\n objects: 0 objects, 0 B\n usage: 3.0 GiB used, …我使用命令创建了 helm 3 模板helm create microservice。它有以下文件。
/Chart.yaml
./values.yaml
./.helmignore
./templates/ingress.yaml
./templates/deployment.yaml
./templates/service.yaml
./templates/serviceaccount.yaml
./templates/hpa.yaml
./templates/NOTES.txt
./templates/_helpers.tpl
./templates/tests/test-connection.yaml
根据我的应用程序更新了值文件，当我尝试安装 helm chat 时，它给出以下错误消息。
Error: UPGRADE FAILED: template: microservice/templates/ingress.yaml:20:8: executing "microservice/templates/ingress.yaml" at <include "microservice.labels" .>: error calling include: template: no template "microservice.labels" associated with template "gotpl"
helm.go:75: [debug] template: microservice/templates/ingress.yaml:20:8: executing "microservice/templates/ingress.yaml" at <include "microservice.labels" .>: error calling include: template: no template "microservice.labels" associated with template "gotpl"
这是ingress.yaml文件。
{{- if .Values.ingress.enabled -}}
{{- $fullName := include "microservice.fullname" . -}} …kubernetes kubernetes-helm kubernetes-ingress nginx-ingress helm3
我试图用现有表测试实体框架CTP 5 Code First.
EdmMetadata从数据库中删除了表.Trusted_Connection=true;Persist Security Info=True在我的连接字符串中添加.__PRE__
如何在没有EdmMetadata表格的情况下运行此应用程序？
我要使用 direct-csi 驱动程序以分布式模式设置 4 节点 minio 集群。根据文档，我尝试创建直接 csi 部署，但失败并显示以下错误消息。我正在使用 Kubernetes v1.17.0 集群。
https://github.com/minio/direct-csi
# DIRECT_CSI_DRIVES=data{1...4} DIRECT_CSI_DRIVES_DIR=/mnt kubectl apply -k github.com/minio/direct-csi
namespace/direct-csi unchanged
storageclass.storage.k8s.io/direct.csi.min.io unchanged
serviceaccount/direct-csi-min-io unchanged
clusterrole.rbac.authorization.k8s.io/direct-csi-min-io unchanged
clusterrolebinding.rbac.authorization.k8s.io/direct-csi-min-io unchanged
configmap/direct-csi-config unchanged
secret/direct-csi-min-io unchanged
service/direct-csi-min-io unchanged
deployment.apps/direct-csi-controller-min-io unchanged
daemonset.apps/direct-csi-min-io unchanged
error: unable to recognize "github.com/minio/direct-csi": no matches for kind "CSIDriver" in version "storage.k8s.io/v1"
如何解决此错误消息？
【更新】查看CIS版本：
kubectl explain CSIDriver
KIND: CSIDriver
VERSION: storage.k8s.io/v1beta1
谢谢 SR