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How to deal with INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES without uninstall?
...r developer's machine). Or, the old one is signed with your production key and the new one is signed with your debug key.
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How to convert DOS/Windows newline (CRLF) to Unix newline (LF) in a Bash script?
... up with no data in the file.
You can't do it the other way round (with standard 'tr').
If you know how to enter carriage return into a script (control-V, control-M to enter control-M), then:
sed 's/^M$//' # DOS to Unix
sed 's/$/^M/' # Unix to DOS
where the '^M' is the control-M charact...
How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?
...that are not marked as being in __block storage are retained by the block, and get released by the block when it is destroyed (when its retain count goes to 0). Here's the documentation on that: developer.apple.com/library/mac/documentation/Cocoa/Conceptual/…
– Ryan
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JavaScript: How do I print a message to the error console?
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Install Firebug and then you can use console.log(...) and console.debug(...), etc. (see the documentation for more).
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RabbitMQ / AMQP: single queue, multiple consumers for same message?
I am just starting to use RabbitMQ and AMQP in general.
12 Answers
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How to keep environment variables when using sudo
When I use any command with sudo the environment variables are not there. For example after setting HTTP_PROXY the command wget works fine without sudo . However if I type sudo wget it says it can't bypass the proxy setting.
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How to drop columns by name in a data frame
I have a large data set and I would like to read specific columns or drop all the others.
11 Answers
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mongodb/mongoose findMany - find all documents with IDs listed in array
I have an array of _ids and I want to get all docs accordingly, what's the best way to do it ?
5 Answers
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sed beginner: changing all occurrences in a folder
I need to do a regex find and replace on all the files in a folder (and its subfolders). What would be the linux shell command to do that?
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Create a unique number with javascript time
... month, two digit day, two digit hour, two digit minute, two digit second, and three digit millisecond. So it would look something like this: 20111104103912732 ... this would give enough certainty of a unique number for my purposes.
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