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Remove blank lines with grep
I tried grep -v '^$' in Linux and that didn't work. This file came from a Windows file system.
14 Answers
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Convert a date format in PHP
...m trying to convert a date from yyyy-mm-dd to dd-mm-yyyy (but not in SQL); however I don't know how the date function requires a timestamp, and I can't get a timestamp from this string.
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Further understanding setRetainInstance(true)
...1: INFO/TESTING - MYACTIVITY(4790): Instantiated - com.example.MyActivity@405196b0
09-29 13:23:04.851: DEBUG/dalvikvm(4790): GC_EXTERNAL_ALLOC freed 49K, 51% free 2686K/5379K, external 0K/0K, paused 45ms
09-29 13:23:04.881: INFO/TESTING - MYACTIVITY(4790): onCreate - com.example.MyActivity@405196b0
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How to check whether mod_rewrite is enable on server?
Currently I am using the hosting with lightspeed server. Hosting says mod_rewrite is enabled but I can't get my script working there. Whenever I try to access the URL, it returns 404 - not found page.
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iOS - Calling App Delegate method from ViewController
What I am trying to do is click a button (that was created in code) and have it call up a different view controller then have it run a function in the new view controller.
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Removing all empty elements from a hash / YAML?
How would I go about removing all empty elements (empty list items) from a nested Hash or YAML file?
20 Answers
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Create directory if it does not exist
I am writing a PowerShell script to create several directories if they do not exist.
11 Answers
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How can I symlink a file in Linux? [closed]
I want to make a symbolic link in Linux. I have written this Bash command where the first path is the folder I want link into and the second path is the compiled source.
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How do I get a list of all subdomains of a domain? [closed]
I want to find out all the subdomains of a given domain. I found a hint which tells me to dig the authoritative Nameserver with the following option:
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Compile error: “g++: error trying to exec 'cc1plus': execvp: No such file or directory”
When I compile C/C++ program with popen in php ... I got this error:
9 Answers
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