Use OS 10.6 to operate Macbook Pro.
I recently installed the Asp package and R package manager, and it seems to be installed very well (no installation errors). But when I try to use aspell I get
Author: Simo
LSOF command
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The default version of lsof in CentOS6 is 4.82
The default version of lsof in CentOS7 is 4.87< /p>
The difference between the above two versions is shown in the figure be
Application process monitoring under Linux
Two ideas:
First, execute the monitoring script regularly
Use the crontab that comes with centos to execute the status.sh script regularly as needed.
#!/bin/bash
status=$(ps
GIL global interpreter locks lock lock signal volume
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GIL global interpreter lock: study interpreter lock based on cpython GIL is essentially a mutex lock
The purpose of GIL is to prevent multiple threads in the same process from
[Data Structure] Non-recurable traversal binary tree
Because the recursion is achieved through the stack, although the recursive code sometimes looks simpler, then the recursion is too deep and it will be created p> Stack overflow. So we can achieve
HOMEBREW Detailed
Homebrew is a package manager for Mac, similar to yum or apt-get in Linux system, it can make your Mac more perfect. mongodb is a NOSQL database, a document database, which is different from tradit
Package – BREW error: Unable to sign, path is not writable
When I try to install the library using homebrew (brew install aLibrary), I get the following error:
Could not symlink lib/pkgconfig/aFile
/usr/local/lib/pkgconfig is not writable. What shoul
LINUX basic article
One, the type of user
1. root administrator: all permissions (rwx)
2. file owner (u): who created Who owns
3. Main group (g): user group AAA {A1,A2}
4. Other users (o): does
LINUX (CENTOS) Automatically performs script (rc.local)
1. There are many ways to boot Linux. For example, I set mysql boot to start as: chkconfig –level 35 mysqld on
Second, let’s talk about booting through the rc.local file:
1 , First cre
How to implement password login in Linux
The normal process of logging in to mysql is generally to execute the following command:
mysql -uroot -p
and then enter the password. In the local linux system, if you want to automatic