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How do I set a variable to the output of a command in Bash?
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2476
In addition to backticks `command`, command substitution can be done with $(command) or "$(comma...
Unable to locate tools.jar
...jdk itself.
– ArtOfWarfare
Feb 24 '16 at 19:42
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show 4 more comments
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Eclipse: Enable autocomplete / content assist
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186
By default in Eclipse you only have to press Ctrl-space for autocomplete. Then select the desire...
Why should eval be avoided in Bash, and what should I use instead?
...l if you want to do something more complex:
# Add to scenario:
VAR_2='4 5 6'
# We could use:
local ref="${REF}_2"
echo "${!ref}"
# Versus the bash < 2 method, which might be simpler to those accustomed to eval:
eval "echo \"\$${REF}_2\""
Regardless, the new method is more intuitive, though i...
What's the common practice for enums in Python? [duplicate]
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@Joan You could do _unused, Shaded, Shiny, Transparent, Matte = range(5)
– zekel
Dec 9 '10 at 2:12
81
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MongoDB数据导出导入工具：mongoexport,mongoimport - 大数据 & AI - 清泛...
...个students集合，集合中数据如下：
> db.students.find()
{ "_id" : ObjectId("5031143350f2481577ea81e5"), "classid" : 1, "age" : 20, "name" : "kobe" }
{ "_id" : ObjectId("5031144a50f2481577ea81e6"), "classid" : 1, "age" : 23, "name" : "nash" }
{ "_id" : ObjectId("5031145a50f2481577ea81...
Will the Garbage Collector call IDisposable.Dispose for me?
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36
Actually, I don't believe the GC calls Object.Finalize at all if it's not overridden. The object is determined to effectively not have a fin...
Calling shell functions with xargs
...at:
$ echo '$(date)' | xargs -I {} bash -c 'echo_var "{}"'
Sun Aug 18 11:56:45 CDT 2019
Another example of why not:
echo '\"; date\"' | xargs -I {} bash -c 'echo_var "{}"'
This is what is output using the safe format:
$ echo '$(date)' | xargs -I {} bash -c 'echo_var "$@"' _ {}
$(date)
This ...
How do I check if I'm running on Windows in Python? [duplicate]
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Python os module
Specifically for Python 3.6/3.7:
os.name: The name of the operating
system dependent module imported. The
following names have currently been
registered: 'posix', 'nt', 'java'.
In your case, you want to check for 'nt' as os.name output:
i...
RE error: illegal byte sequence on Mac OS X
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mklement0mklement0
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