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Java 8 forEach with index [duplicate]
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170
Since you are iterating over an indexable collection (lists, etc.), I presume that you can the...
Golang: How to pad a number with zeros when printing?
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179
The fmt package can do this for you:
fmt.Printf("|%06d|%6d|\n", 12, 345)
Notice the 0 in %...
How to use > in an xargs command?
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201
Do not make the mistake of doing this:
sh -c "grep ABC {} > {}.out"
This will break under ...
Get the name of the currently executing method
... name as a string, call __method__.to_s instead.
Note: This requires Ruby 1.8.7.
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Checking for the correct number of arguments
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218
#!/bin/sh
if [ "$#" -ne 1 ] || ! [ -d "$1" ]; then
echo "Usage: $0 DIRECTORY" >&2
ex...
Chmod recursively
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131
You need read access, in addition to execute access, to list a directory. If you only have exe...
Is there a C# type for representing an integer Range?
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10 Answers
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How can I run PowerShell with the .NET 4 runtime?
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11 Answers
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How to tell if JRE or JDK is installed
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160
You can open up terminal and simply type
java -version // this will check your jre version
j...
Python 3: UnboundLocalError: local variable referenced before assignment [duplicate]
The following code gives the error UnboundLocalError: local variable 'Var1' referenced before assignment :
5 Answers
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