大约有 45,000 项符合查询结果（耗时：0.0939秒） [XML]
How to undo the effect of “set -e” which makes bash exit immediately if any command fails?
...et -e in an interactive bash shell, bash will exit immediately if any command exits with non-zero. How can I undo this effect?
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Escaping a forward slash in a regular expression
My question is a simple one, and it is about regular expression escaping. Do you have to escape a forward slash / in a regular expression? And how would you go about doing it?
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The term 'Get-ADUser' is not recognized as the name of a cmdlet
...the following query to list the users in a windows 2008 server, but failed and got the below error.
6 Answers
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Create whole path automatically when writing to a new file
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Why getParentFile and not just mkdirs?
– sauperl
Mar 11 '16 at 15:54
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UIButton title text color
...e text color or the shadow color. Instead, use the setTitleColor:forState: and setTitleShadowColor:forState: methods of this class to make those changes." No real explanation of the "why" though.
– clauswey
Mar 4 '15 at 12:12
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How do I output raw html when using RazorEngine (NOT from MVC)
...d IEncodedString, with the default implementations being HtmlEncodedString and RawString.
To use the latter, simply make a call to the inbuilt Raw method of TemplateBase:
@Raw(Model.EmailContent)
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How can I divide two integers to get a double?
...ug 19 '15 at 19:51
Shimmy Weitzhandler
88.9k116116 gold badges372372 silver badges585585 bronze badges
answered Mar 19 '09 at 4:14
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Select objects based on value of variable in object using jq
...f you meant the keys after the filter, giving "FOO" "BAR", use this answer and use .key instead of [.key, .value.name].
– ggorlen
Sep 12 at 4:26
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How to prepend a string to a column value in MySQL?
...hat:
UPDATE tbl SET col=CONCAT('test',col);
If you want to get cleverer and only update columns which don't already have test prepended, try
UPDATE tbl SET col=CONCAT('test',col)
WHERE col NOT LIKE 'test%';
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If string is empty then return some default value
Often I need to check if some value is blank and write that "No data present" like that:
6 Answers
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