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How to merge dictionaries of dictionaries?
...k])
# Alternatively, replace this with exception raiser to alert you of value conflicts
elif k in dict1:
yield (k, dict1[k])
else:
yield (k, dict2[k])
dict1 = {1:{"a":"A"},2:{"b":"B"}}
dict2 = {2:{"c":"C"},3:{"d":"D"}}
print dict(mergedicts(d...
Get specific line from text file using just shell script
...ternal tools. Disallowing the use of external tools while writing a shell script is absurd. However, if you really don't want to use external tools, you can print line 5 with:
i=0; while read line; do test $((++i)) = 5 && echo "$line"; done < input-file
Note that this will print logi...
How can I remove the first line of a text file using bash/sed script?
...eed to repeatedly remove the first line from a huge text file using a bash script.
16 Answers
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Show or hide element in React
...actDOM.render(<Search />, document.querySelector("#container"))
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.13.1/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.13.1/umd/react-dom.production.min.js">&l...
Make a link use POST instead of GET
...at submits the form.
See here, for an example. This example uses pure JavaScript, with no jQuery — you could choose this if you don't want to install anything more than you already have.
<form name="myform" action="handle-data.php" method="post">
<label for="query">Search:</labe...
Append text to input field
... $('#input-field-id').val($('#input-field-id').val() + 'more text');
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<input id="input-field-id" />
share
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How to set variables in HIVE scripts
... source, but set some of the variables "locally" to use in the rest of the script.
share
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Grep and Sed Equivalent for XML Command Line Processing
When doing shell scripting, typically data will be in files of single line records like csv. It's really simple to handle this data with grep and sed . But I have to deal with XML often, so I'd really like a way to script access to that XML data via the command line. What are the best tools?
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Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...indows Explorer是一个典型的图形界面Shell。
shell脚本(shell script),是一种为shell编写的脚本程序。业界所说的shell通常都是指shell脚本,但读者朋友要知道,shell和shell script是两个不同的概念。由于习惯的原因,简洁起见,本文出...
How to template If-Else structures in data-bound views?
...:
<td data-bind="template: $root.getCellTemplate"></td>
<script id="cellEditTmpl" type="text/html">
<input type="text" name="email" data-bind="value: email" />
</script>
<script id="cellTmpl" type="text/html">
<span data-bind="text: email"></s...
