sudo apt-get autoremove .
产出:
WARNING: The following essential packages will be removed.
This should NOT be done unless you know exactly what you are doing!
apt libapt-pkg4.12 (due to apt) libc6 (due to apt) libgcc1 (due to apt)
libstdc++6 (due to apt) ubuntu-keyring (due to apt) gnupg (due to apt)
我正在尝试将数据导入postgres。数据字段是逗号分隔的,字符串可能包含逗号,在这种情况下,这些逗号是转义的:
数据结构:
create table v (a varchar);
数据文件:
bus
'Gat\,\\e\'way_MQB'
导入命令(在Linux下从bash运行)
cat data.csv | psql -d database -c "copy v (a) from stdin with delimiter ',' escape '\\' CSV header"
错误:
ERROR: extra dat
我有点卡住了,还是个初学者。在升级过程中,我的dev/sda1 1似乎达到了容量。
sudo apt-get autoremove
给我:
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
linux-image-extra-4.4.
我需要删除Linux上的目录,它的名称超过4个字符。但是不要计算子目录的长度。
例如:
/12345/.. <= Should be deleted
/123456/.. <= Should be deleted
/1234/12345 <= Should NOT be deleted
/1234/123456 <= Should NOT be deleted
更新:得到了它:
find -maxdepth 1 -regextype posix-egrep -type d -regex '.*[^/]{4}' -exec rm -rf {}
所以,我刚刚创建了我的第一个对接映像(woohoo),并能够在原来的主机系统上运行它(Ubuntu20.04桌面PC)。图像是使用docker run -it <image_id>执行的。运行了预期的命令(在CMD中定义了一个bash脚本),并看到了预期的输出。我认为这意味着我成功地创建了我的第一个码头形象,所以我把它推到码头中心。
这是Dockerfile:
FROM ubuntu:20.04
# Required for Debian interaction
# (https://stackoverflow.com/questions/62299928/r-install
有时,gcc会在几行中显示单个错误/警告消息。没什么大不了的,但在我看来有点奇怪(也很难看)。
server_inc.c: In function ‘prepareForConn’:
server_inc.c:101: error: ‘filename’ undeclared (first use in this function)
server_inc.c:101: error: (Each undeclared identifier is reported only once
server_inc.c:101: error: for each function it appears in.
我阅读了包含瑞典语文本(vr,än,tall)的模板。然后我试着发送一封邮件。但是当收到邮件问号(?)用来代替特殊字符或重音字符。在Windows中,它可以正常工作,但在Linux中不受支持。我使用的内容类型如下:
text/html; charset=ISO-8859-1 (Windows work fine but in Linux it does not support)
text/html;charset=utf-8 (Windows work fine but in Linux it does not support)
text/x-vcard; ch
我是c++的初学者,我在Linux上用soci库连接到SQL Server的问题,我的代码这但我有错误,我没有找到我的问题的解决方案,我的代码是: 我有错误: [unixODBC][Driver Manager]Data source name not found, and no default driver specified (SQL state IM002) 代码如下: try{
soci::session sql("odbc","DSN=ODBC;UID=sa;PWD=sa123; Connection Driver=TDS;Database=Re