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Git keeps asking me for my ssh key passphrase
... that you uploaded the public key to Github.
To save key permanently on macOS:
ssh-add -K
This will persist it after you close and re-open it by storing it in user's keychain.
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NSString tokenize in Objective-C
... As a reference to future readers, I'd like to note that the opposite is [anArray componentsJoinedByString:@":"];.
– Ivan Vučica
Feb 6 '12 at 18:12
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Getting Python error “from: can't read /var/mail/Bio”
...ntally, from is the name of a command line utility which prints names of those who have sent mail to the given username, so that's why it tries to access the mailboxes).
Another possibility is to add the following line to the top of the script:
#!/usr/bin/env python
This will instruct your shell...
Sublime Text 2 - Show file navigation in sidebar
...ows the opening file, but what I want is a file navigation sidebar, is it possible to change that without downloading plugins?
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How to get the command line args passed to a running process on unix/linux systems?
On SunOS there is pargs command that prints the command line arguments passed to the running process.
13 Answers
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Delete empty lines using sed
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You may have spaces or tabs in your "empty" line. Use POSIX classes with sed to remove all lines containing only whitespace:
sed '/^[[:space:]]*$/d'
A shorter version that uses ERE, for example with gnu sed:
sed -r '/^\s*$/d'
(Note that sed does NOT support PCRE.)
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Undefined reference to `sin` [duplicate]
...g, and is known by many names (IEEE Std 1003.1, X/Open Portability Guide, POSIX, Spec 1170).
This standard, specifically separates out the "Standard C library" routines from the "Standard C Mathematical Library" routines (page 277). The pertinent passage is copied below:
Standard C Library
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ExecJS and could not find a JavaScript runtime
...to run:
sudo apt-get install nodejs
This will solve the problem.
CentOS/RedHat Users
sudo yum install nodejs
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Pipe to/from the clipboard in Bash script
Is it possible to pipe to/from the clipboard in Bash?
29 Answers
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How can a windows service programmatically restart itself?
...(double click the service in the control panel and have a look around on those tabs - I forget the name of it). Then, anytime you want the service to restart, just call Environment.Exit(1) (or any non-zero return) and the OS will restart it for you.
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