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Remove the last line from a file in Bash
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Using GNU sed:
sed -i '$ d' foo.txt
The -i option does not exist in GNU sed versions older than 3.95, so you have to use it as a filter with a temporary file:
cp foo.txt foo.txt.tmp
sed '$ d' foo.txt.tmp > foo.txt
rm -f foo.txt.tmp
Of course, in that case you could als...
ActionBarCompat: java.lang.IllegalStateException: You need to use a Theme.AppCompat
...hat you do not have another values folder that references theme.styled and does not use AppCompat theme
ie values-v11 folder
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Python: List vs Dict for look up table
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... but the question for me here is: what does this times are actually measuring? Not the access time for a given list, dict or set, but much more, the time and loops to create the list, dict, set and finally to find and access one value. So, does this have to do wit...
Dot character '.' in MVC Web API 2 for request such as api/people/STAFF.45287
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That does not work though when the dot is at the end of the URL section as in /people/member.
– eYe
Oct 23 '15 at 13:18
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Why doesn't Python have multiline comments?
...s; by convention, they are docstrings. They should describe what your code does and how to use it, but not for things like commenting out blocks of code.
According to Guido, multiline comments in Python are just contiguous single-line comments (search for "block comments").
To comment blocks of ...
move_uploaded_file gives “failed to open stream: Permission denied” error
...t when typing ps aux | grep httpd and <?php echo exec('whoami'); ?>. Does anyone know why ?
– kukinsula
Jun 17 '14 at 16:17
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Can “using” with more than one resource cause a resource leak?
...and put it on the finalizer queue. handle is still zero, so the finalizer does nothing. Notice that the finalizer is required to be robust in the face of an object that is being finalized whose constructor never completed. You are required to write finalizers that are this strong. This is yet ano...
Verify a certificate chain using openssl verify
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-untrusted doesn't check whether certificate chain is fully valid. Please consider to pass both intermediate and root to command as -CAfile as other questions suggests.
– Envek
Jun 22 '16 at 18:06
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How to print a string in fixed width?
... '{<5}'.format('ss') 'ss ' just like before, but without the 0, does the same thing or 'Second {1: <5} and first {0: <5}'.format('ss', 'sss') 'Second sss and first ss ' so you can reorder or even output the same variable many times in a single output string.
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Quick and easy file dialog in Python?
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This does not work well on MacOS: the dialog opens but becomes unresponsive and the whole script hangs.
– Periodic Maintenance
Jun 14 '17 at 7:49
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