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How to write multiple line string using Bash with variables?
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480
The syntax (<<<) and the command used (echo) is wrong.
Correct would be:
#!/bin/bash
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Meaning of $? (dollar question mark) in shell scripts
...executed command.
For example the command true always returns a status of 0 and false always returns a status of 1:
true
echo $? # echoes 0
false
echo $? # echoes 1
From the manual: (acessible by calling man bash in your shell)
$? Expands to the exit status of the most recen...
Ruby on Rails: How do you add add zeros in front of a number if it's under 10?
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Did you mean sprintf '%02d', n?
irb(main):003:0> sprintf '%02d', 1
=> "01"
irb(main):004:0> sprintf '%02d', 10
=> "10"
You might want to reference the format table for sprintf in the future, but for this particular example '%02d' mea...
Python string.join(list) on object array rather than string array
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answered Jan 31 '09 at 0:10
Adam RosenfieldAdam Rosenfield
346k9090 gold badges477477 silver badges564564 bronze badges
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How do I create an array of strings in C?
... want to change the strings, then you could simply do
const char *a[2];
a[0] = "blah";
a[1] = "hmm";
When you do it like this you will allocate an array of two pointers to const char. These pointers will then be set to the addresses of the static strings "blah" and "hmm".
If you do want to be ab...
How to get thread id from a thread pool?
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answered Jul 20 '10 at 20:59
skaffmanskaffman
374k9292 gold badges779779 silver badges744744 bronze badges
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How to find out if an installed Eclipse is 32 or 64 bit version?
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210
Hit Ctrl+Alt+Del to open the Windows Task manager and switch to the processes tab.
32-bit progr...
Failed to instantiate module [$injector:unpr] Unknown provider: $routeProvider
I received this error upon upgrading from AngularJS 1.0.7 to 1.2.0rc1 .
3 Answers
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How to merge a transparent png image with another image using PIL
....png")
foreground = Image.open("test2.png")
background.paste(foreground, (0, 0), foreground)
background.show()
First parameter to .paste() is the image to paste. Second are coordinates, and the secret sauce is the third parameter. It indicates a mask that will be used to paste the image. If you p...
How do I check in SQLite whether a table exists?
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1045
I missed that FAQ entry.
Anyway, for future reference, the complete query is:
SELECT name FR...