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Add file extension to files with bash
...$2;}'); mv -n "$f" "$f.$ext"; done
The use of awk is to strip the second word of the string returned from the command file that is actually the extension.
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All but last element of Ruby array
...es most sense to this user. The mirror operations are at hand and it uses words that are easy to interpret && concise.
– Jerome
Mar 22 '17 at 9:39
2
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Random strings in Python
...from (for example) lowercase characters:
import random, string
def randomword(length):
letters = string.ascii_lowercase
return ''.join(random.choice(letters) for i in range(length))
Results:
>>> randomword(10)
'vxnxikmhdc'
>>> randomword(10)
'ytqhdohksy'
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Highlight bash/shell code in markdown
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If need only to highlight first word as command, so I often use properties:
```properties
npm run build
```
I obtain something like:
npm run build
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Python None comparison: should I use “is” or ==?
...they actually are the same object (not just equivalent objects)
In other words, == is a check for equivalence (which is defined from object to object) whereas is checks for object identity:
lst = [1,2,3]
lst == lst[:] # This is True since the lists are "equivalent"
lst is lst[:] # This is False...
How to repeat last command in python interpreter shell?
...eturn while cursor is on a previous command retrieves that command.
Expand word is also useful to reduce typing.
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How to convert string to char array in C++?
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I love the way people abuse the word safety... oh, there's not enough room for the string, so let's truncate it.. oh, we accidentally removed the info about the patient's life threatening drug allergy.. but we don't have a buffer overrun anymore. well, I gu...
PHP global in functions
What is the utility of the global keyword ?
7 Answers
7
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PHP Get all subdirectories of a given directory
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@developerbmw Note the word or. He presents two different methods of attaining the goal.
– Ken Wayne VanderLinde
Jan 8 '16 at 19:20
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How do I make a branch point at a specific commit? [duplicate]
...;remote> <branch> is well described in another thread, though the word "overwrite" in the title is misleading.
Force "git push" to overwrite remote files
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