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How can I suppress all output from a command using Bash?
...o assign the result of a command to a variable:
$ DUMMY=$( grep root /etc/passwd 2>&1 )
$ echo $?
0
$ DUMMY=$( grep r00t /etc/passwd 2>&1 )
$ echo $?
1
Since Bash and other POSIX commandline interpreters does not consider variable assignments as a command, the present command's retu...
window+nginx+php-cgi的php-cgi线程/子进程问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
window+nginx+php-cgi的php-cgi线程/子进程问题见bbshttp: bbs csdn net topics 390803643 close正常的配置情况下,window的php-cgi是不会出现多线程 子进程的,例如以下配置fastcgi_pass 见bbs
http://bbs.csdn.net/topics/390803643/close
正常的配置情况下,window...
How to generate an openSSL key using a passphrase from the command line?
...assword being viewable as a process use a function in a shell script:
get_passwd() {
local passwd=
echo -ne "Enter passwd for private key: ? "; read -s passwd
openssl genpkey -aes-256-cbc -pass pass:$passwd -algorithm RSA -out $PRIV_KEY -pkeyopt rsa_keygen_bits:$PRIV_KEYSIZE
}
...
How To Set Up GUI On Amazon EC2 Ubuntu server
... the GUI
Create new user with password login
sudo useradd -m awsgui
sudo passwd awsgui
sudo usermod -aG admin awsgui
sudo vim /etc/ssh/sshd_config # edit line "PasswordAuthentication" to yes
sudo /etc/init.d/ssh restart
Setting up ui based ubuntu machine on AWS.
In security group open port 59...
【解决】php7.x后报错Warning: Use of undefined constant PRE - assumed问...
【解决】php7.x后报错Warning: Use of undefined constant PRE - assumed问题解决此种问题其实也不是很难，只是报了Warning警告，我们只需要关闭PHP错误提示就行了。具体步骤如下：1、打开 php ini2、设置 error_reporting = E_ALL & ~E_DEPRECATED & 解决...
记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
记一次MongoDB性能问题最近忙着把一个项目从MySQL迁移到MongoDB，在导入旧数据的过程中，遇到了些许波折，犯了不少错误，但同时也学到了不少知识，遂记录下来。公...最近忙着把一个项目从MySQL迁移到MongoDB，在导入旧数据的过...
Changing default shell in Linux [closed]
...
@ShaktiMalik I believe the configure file is /etc/passwd, but I didn't double check it.
– Summer_More_More_Tea
Feb 11 '14 at 13:18
...
Node.js quick file server (static files over HTTP)
...llow going up the file tree by doing something like 127.0.0.1/../../../etc/passwd ? I see no checks against that.
– Rolf
Mar 13 '16 at 22:21
4
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How to write LDAP query to test if user is member of a group?
...uery will look something like this:
ldapsearch -x -D "ldap_user" -w "user_passwd" -b "cn=jdoe,dc=example,dc=local" -h ldap_host '(memberof=cn=officegroup,dc=example,dc=local)'
If you want to see ALL the groups he's a member of, just request only the 'memberof' attribute in your search, like this:...
ucenter应用之间cookietime不能传送问题解决 - 更多技术 - 清泛网 - 专注C/C++及内核技术
ucenter应用之间cookietime不能传送问题解决前段时间在应用uchome、discuz、cyask等进行二次开发时遇到了在关闭浏览器时不能同步退出的问题，即ucenter默认是在同步登陆的时候其他的应...前段时间在应用uchome、discuz、cyask等进行二次...