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What is your single most favorite command-line trick using Bash? [closed]
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Renaming/moving files with suffixes quickly:
cp /home/foo/realllylongname.cpp{,-old}
This expands to:
cp /home/foo/realllylongname.cpp /home/foo/realllylongname.cpp-old
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Using Server.MapPath() inside a static field in ASP.NET MVC
... a relative virtual path. For example, Server.MapPath() allows a path of "files/file1.doc". It uses the current context to determine the path of the current page, for example, and then creates the relative path from there. If we are in ~/Subfolder/Page1.aspx, the url would map from ~/Subfolder/fi...
Xcode 6 beta 2 issue exporting .ipa: “Your account already has a valid iOS distribution certificate”
... 5, go to Organizer and export as Ad Hoc build with proper provisioning profile.
That's it!
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Node.js Error: Cannot find module express
...4.14.0\package.tgz npm ERR! Windows_NT 6.3.9600 npm ERR! argv "C:\\Program Files\\nodejs\\\\node.exe" "C:\\Program Files\\nodejs \\node_modules\\npm\\bin\\npm-cli.js" "install" "express"
– VjyV
Oct 10 '16 at 9:40
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If strings are immutable in .NET, then why does Substring take O(n) time?
... a couple hundred characters. You have a line of text in a comma-separated file and you want to extract the third field, which is a last name. The line will be maybe a couple hundred characters long, the name will be a couple dozen. String allocation and memory copying of fifty bytes is astonishingl...
Generating statistics from Git repository [closed]
...oject page.
Here is a list of what it can do:
General statistics
Total files (text and binary)
Total lines (added and deleted)
Total commits
Authors
Activity (total and per author)
Commits by date
Commits by hour of day
Commits by day of week
Commits by hour of week
Commits by month of year
Co...
Argparse: Required arguments listed under “optional arguments”?
...rser(description='Foo')
parser.add_argument('-o', '--output', help='Output file name', default='stdout')
requiredNamed = parser.add_argument_group('required named arguments')
requiredNamed.add_argument('-i', '--input', help='Input file name', required=True)
parser.parse_args(['-h'])
usage: [-h] ...
MongoDB logging all queries
...as basic as it is simple... How do you log all queries in a "tail"able log file in mongodb?
15 Answers
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No submodule mapping found in .gitmodule for a path that's not a submodule
...eck all the entries in the index which are referencing submodules:
git ls-files --stage | grep 160000
Previous answer (November 2010)
It is possible that you haven't declared your initial submodule correctly (i.e. without any tail '/' at the end, as described in my old answer, even though your...
How can I remove a trailing newline?
...for Universal newlines (only when reading, not when writing). You open the file in either "U" or "rU" mode, and then regardless of Windows, Linux, Mac, whatever, by the time the text reaches your python code, any style of newline has been replaced with "\n". See: python.org/dev/peps/pep-0278
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