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How do I use a file grep comparison inside a bash if/else statement?

...error occurs and -q was not given, the exit status is 2. if grep --quiet MYSQL_ROLE=master /etc/aws/hosts.conf; then echo exists else echo not found fi You may want to use a more specific regex, such as ^MYSQL_ROLE=master$, to avoid that string in comments, names that merely start with "mast...
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How to create a table from select query result in SQL Server 2008 [duplicate]

...a new table, but instead appends the data into an existing table, e.g. dev.mysql.com/doc/refman/8.0/en/…. – flow2k May 19 at 8:07 add a comment  |  ...
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Generate MD5 hash string with T-SQL

...he magic that worked for me to give a perfect match between SQL Server and MySql select LOWER(CONVERT(VARCHAR(32), HashBytes('MD5', CONVERT(varchar, EmailAddress)), 2)) from ... share | improve th...
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微软VS苹果 桌面操作系统的终极一战 - 创意 - 清泛网 - 专注C/C++及内核技术

...套苹果产品(服务)的一部分。苹果所需要考虑的并不是如何靠OS X赚钱,而是如何靠OS X吸引更多的Mac用户,换言之,OS X从来没有真正意义的免费,它只是作为Mac的一部分进行销售,和消费者进行了一场朝三暮四的文字游戏。[pa...
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How to change the output color of echo in Linux

...? Anywhere that has a tty interpreter xterm, gnome-terminal, kde-terminal, mysql-client-CLI and so on. For example if you want to colorize your output with mysql you can use Perl #!/usr/bin/perl -n print "\033[1m\033[31m$1\033[36m$2\033[32m$3\033[33m$4\033[m" while /([|+-]+)|([0-9]+)|([a-zA-Z_]+)|([...
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AngularJS : Prevent error $digest already in progress when calling $scope.$apply()

... Note that in some cases I have to check but the current scope AND the root scope. I've been getting a value for $$phase on the root but not on my scope. Think it has something to do with a directive's isolated scope, but.. – Roy Truelove Jan 14 '13 at 15...
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Role/Purpose of ContextLoaderListener in Spring?

...ed when we are initializing multiple Dispatcher servlets and still want a Root context to be shared by all DispaterServlets own context then we need to use ContextLoaderListener. – supernova Jan 7 '18 at 9:01 ...
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What is the use of the square brackets [] in sql statements?

...y brackets if you want to use them as column / table / sp / etc. names. In MySQL angled single quotes ```` would be the equivalent of this. – Baz Guvenkaya Feb 9 '17 at 5:03 2 ...
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How to update Python?

...nother symlink called conda-activate to activate in the Anaconda/Miniconda root bin folder. Now Anaconda/Miniconda is just like Ruby RVM. Just use conda-activate root to enable Anaconda/Miniconda. Portable Python is no longer being developed or maintained. TL;DR Using Anaconda or miniconda, then...
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How to add a progress bar to a shell script?

...u can do things, such as the following. $ pmonitor -c gzip /home/dds/data/mysql-2015-04-01.sql.gz 58.06% An earlier version of Linux and FreeBSD shell scripts appears on my blog. share | improve ...