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Create directory if it does not exist
... forcing them does not clear out existing contents, it only suppresses the error message saying it's already created. This command will also create any intervening folders necessary, and the contents of those folders are also safe if they already exist.
– John Neuhaus
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C# 4 default parameter values: How to assign a default DateTime/object value? [duplicate]
If DateTime is an object and default C# parameters can only be assigned compile-time constants, how do you provide default values for objects like DateTime?
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How can I get device ID for Admob
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josephjoseph
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How to get the position of a character in Python?
...the search string isn't found. find() returns -1 and index() raises ValueError.
Using find()
>>> myString = 'Position of a character'
>>> myString.find('s')
2
>>> myString.find('x')
-1
Using index()
>>> myString = 'Position of a character'
>>> my...
Is there a “not equal” operator in Python?
How would you say does not equal?
9 Answers
9
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How do I use grep to search the current directory for all files having the a string “hello” yet disp
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grep -l hello **/*.{h,cc}
You might want to shopt -s nullglob to avoid error messages if there are no .h or no .cc files.
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Regular Expression: Any character that is NOT a letter or number
I'm trying to figure out the regular expression that will match any character that is not a letter or a number. So characters such as (,,@,£,() etc ...
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What to do about Eclipse's “No repository found containing: …” error messages?
...be OK.
At least this trick resolved my problems similar like this:
An error occurred while collecting items to be installed session
context was:(profile=epp.package.jee,
phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=,
action=). No repository found containing:
osgi...
Turning off auto indent when pasting text into vim
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edited Feb 17 '19 at 0:05
Daithí
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answered Ju...
How to use sed to remove the last n lines of a file
I want to remove some n lines from the end of a file. Can this be done using sed?
22 Answers
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