我有一个文本文件,里面有很多URL。URls有很多不同的结尾,比如.net,.com,.de等等.所有的URL都没有http:// oder。在前面。该文档中还有许多其他文本,如下所示:
2014/05/03 Red V!per M R United States jsugarcia.com/viper.gif Linux mirror
2014/05/03 Red V!per M R United States thepeoplecenter.org/viper.gif Linux mirror
2014/05/
我的邮件服务器有问题。我有后缀和dovecot当前配置:/etc/后缀/main.cf
# See /usr/share/postfix/main.cf.dist for a commented, more complete version
# Debian specific: Specifying a file name will cause the first
# line of that file to be used as the name. The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname
sm
我已经使用VMplayer很多年了,但现在还没有发布。APT完全是最新的Ubuntu 20.04。我已经卸载了VMplayer并重新安装了上一个版本(VMplayer 16.2.3)
当我尝试从终端启动vmplayer时,它只提供这个输出(然后什么也不做):
/usr/lib/vmware/bin/vmplayer: Relink '/usr/lib/x86_64-linux-gnu/libpixman-1.so.0' with '/lib/x86_64-linux-gnu/libm.so.6' for IFUNC symbol 'sin'
我能
我从源代码编译并安装了Python3.6.1,并运行sudo pip3 install readline来安装readline模块。但是,当我启动Python时,无论输入什么内容,它都会崩溃:
Python 3.6.1 (default, Mar 25 2017, 13:40:56)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> print("
CREATE PROCEDURE windowPeriod (IN BEGIN_TIME DATETIME)
BEGIN
DECLARE finished INTEGER DEFAULT 0;
DECLARE minuteCount INTEGER DEFAULT 0;
DECLARE END_TIME DATETIME;
DECLARE eachMinute CURSOR FOR
select count(*) as C
from
(
SELECT *
from DATA timest
你好,我有这个文件:
a|b|c|d|
1.05 january february 05-02-2010 Linux Mint
3.458 november december 05-02-2010 Windows 10
我想在csv中使用pandas和Python来转换这个文件,如下所示:
a;b;c;d
1.05;january february;05-02-2010;Linux Mint
3.458;november december;05-02-2010;Windows 10
我真的不知道该怎么做。你能帮我个忙吗?
谢谢!
因此,我安装了Android、Eclipse和ADT。在设置ADT后第一次触发Eclipse时,会弹出以下错误:
[2012-05-29 12:11:06 - adb] /home/drsmith/Downloads/android-sdk-linux/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory
[2012-05-29 12:11:06 - adb] 'adb ver
最近,我试图将vserver升级到16.04。虽然一切都很顺利,但无论我做什么,内核版本都没有更新。
似乎安装了正确的软件包:
dpkg -l | grep linux-image:
ii linux-image-4.4.0-57-generic 4.4.0-57.78 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-57-generic 4.4.0-57.78
我已经安装了python_devel和mysql_devel (也就是mysql_devel),但在安装MariaDB客户端时,仍然会出现找不到文件的错误:
Package python-devel-2.7.5-48.el7.x86_64 already installed and latest version
Package MariaDB-devel-10.2.8-1.el7.centos.x86_64 already installed and latest version
Nothing to do
root@host [~]# pip install mysqlclient
Coll
我正在自学C语言。我的目标是编写一个C函数,它只需遍历一个查询字符串,并对与号和等号进行拆分。我被Valgrind的这个错误卡住了。
==5411== Invalid free() / delete / delete[] / realloc()
==5411== at 0x402AC38: free (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)
==5411== by 0x804857C: main (leak.c:28)
==5411== Address 0x420a02a is 2 bytes inside a