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How to replace a whole line with sed?
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This might work for you:
cat <<! | sed '/aaa=\(bbb\|ccc\|ddd\)/!s/\(aaa=\).*/\1xxx/'
> aaa=bbb
> aaa=ccc
> aaa=ddd
> aaa=[something else]
!
aaa=bbb
aaa=ccc
aaa=ddd
aaa=xxx
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Nginx not picking up site in sites-enabled?
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Thanks for saving my life!
– MatTheCat
Dec 11 '13 at 9:29
4
May be a problem wi...
What is the point of a “Build Server”? [closed]
...y a reason for building from a clean checkout, not for building from a dedicated build-agent on a dedicated build-server. Running an automated build-script in a clean checkout of the repository on a local developers machine already gives most of the advantages of a dedicated build-server.
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Where is SQL Server Management Studio 2012?
...o download SQLManagementStudio_x64_ENU.exe)
– System.Cats.Lol
May 28 '13 at 2:10
7
When you run t...
Remove an element from a Bash array
...ing the indices via ${!arycopy[@]} and reversing them with tac, which is a cat that turns around the input line order.
A function solution without variable indirection would probably have to involve eval, which may or may not be safe to use in that situation (I can't tell).
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Does the ternary operator exist in R?
...gth(x) ? (x*2) : 0
x <- numeric(0)
length(x) ? (x*2) : 0
for(i in 1:5) cat(i, (i %% 2) ? "Odd\n" : "Even\n")
... But you need to put the expressions in parentheses because the default precedence isn't like in C.
Just remember to restore the old help function when you're done playing:
rm(`?`)...
Is there a built in function for string natural sort?
...ndle tuples, like a regular python sort.
– The Unfun Cat
May 8 '15 at 18:51
2
The X usages mentio...
Locking a file in Python
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@jweyrich Openstacks pylockfile is now deprecated. It is advised to use fasteners or oslo.concurrency instead.
– harbun
Apr 28 '16 at 9:10
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Concatenate a vector of strings/character
If I have a vector of type character, how can I concatenate the values into string? Here's how I would do it with paste() :
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Garbage collector in Android
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@ThomasPornin - On the other hand, as an application programmer, you know something that the OS does not know: times at which your app is now going to make a major change in how it uses memory, and that it would be less disruptive to the user experience to take a pause ...