backticks

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Bash and MySQL variables error

I have the following script: #!/bin/sh Q=`</dev/urandom tr -dc A-Za-z0-9 | head -c30` mysql -uusername -ppasword accounts -e \"update forum set key=\'$Q\' where id=\'1\';\"[详细]

2023-04-09 09:31 分类：问答
Weird backticks behaviour in Active Record in CodeIgniter 2.0.3

Previously my all queries were running fine in CI version 2.0 but when I upgraded to 2.0.3 some of my SELECT queries were broken.[详细]

2023-04-06 15:27 分类：问答
How to catch PHP backtick operator usage via PHP_CodeSniffer?

I\'ve studied some \"sniffs\" from the \"Generic\" and \"Squiz\" coding standards that come with CodeSniffer version 1.3, and learned enough to write a few \"custom\" sniffs to catch some coding anti-[详细]

2023-04-03 07:02 分类：问答
Use of pipes in backticks

I\'m trying to run a command with a pipe but receive errors: echo abc | `echo \"grep a | grep b\"` grep: |: No such file or directory[详细]

2023-03-30 13:56 分类：问答
Inability to capture output from "dd" using backticks

I\'ve been working with a very old Solaris system and not in a position to add more modules to make my life easier, and I\'m working with a number of scripts that use various command line options.[详细]

2023-03-30 04:27 分类：问答
How do I grep for a backtick?

So I\'m trying to find backticks (`) in files, so I ran: grep -irl \'\\`\' ./* 开发者_运维知识库This seems to return every single file possible...[详细]

2023-03-22 02:11 分类：问答
Mysql not giving Syntax error when it should

I am trying with following query SELECT COU开发者_如何学编程NT(*) FROM users` WHERE email = \'xyz@xyz.com\'[详细]

2023-03-15 21:30 分类：问答
How to send cp a list of filenames (with spaces)

Egrep is generating for me a list of files based on their contents, but I\'m doing something wrong trying to pass that list to cp as arguments. (My shell is bash). I thought I\'d escape the spaces in[详细]

2023-03-09 06:46 分类：问答
perl two consecutive back ticked shell command do not run

I am trying to write perl script for managing amazon ec2 instances. In part of my code, I have two shell commands, and when I invoke them, the first runs but not the second. I cannot seem to find a go[详细]

2023-03-06 04:37 分类：问答
Problem with backticks in multi-threaded Perl script on Windows

I have a trouble with the following very simple and small Perl script on Windows platform. use strict;[详细]

2023-03-01 07:55 分类：问答