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I need to generate uuid for my rails application. What are the options(gems) I have? [duplicate]
I use
Rails 3.0.20 and
ruby 1.8.7 (2011-06-30 patchlevel 352)
4 Answers
4
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Command to escape a string in bash
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155
In Bash:
printf "%q" "hello\world" | someprog
for example:
printf "%q" "hello\world"
hello...
How can I strip first X characters from string using sed?
...nux in a small industrial box. I have a variable containing the text pid: 1234 and I want to strip first X characters from the line, so only 1234 stays. I have more variables I need to "clean", so I need to cut away X first characters and ${string:5} doesn't work for some reason in my system.
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Why does SSL handshake give 'Could not generate DH keypair' exception?
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21 Answers
21
Active
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Can you define aliases for imported modules in Python?
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191
import a_ridiculously_long_module_name as short_name
also works for
import module.submodule...
Android: upgrading DB version and adding new table
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281
1. About onCreate() and onUpgrade()
onCreate(..) is called whenever the app is freshly installe...
How to replace a single word under cursor?
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edited May 23 '17 at 12:26
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answered Jan 9 '13 at 10:48
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Getting current unixtimestamp using Moment.js
... using the following JavaScript function: Math.floor(new Date().getTime()/1000) .
4 Answers
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I want to execute shell commands from Maven's pom.xml
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149
Here's what's been working for me:
<plugin>
<artifactId>exec-maven-plugin</a...
sqlite3.ProgrammingError: Incorrect number of bindings supplied. The current statement uses 1, and t
...ach one character long.
>>> len(img)
74
>>> len((img,))
1
If you find it easier to read, you can also use a list literal:
cursor.execute('INSERT INTO images VALUES(?)', [img])
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