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How can I have grep not print out 'No such file or directory' errors?
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You can use the -s or --no-messages flag to suppress errors.
-s, --no-messages suppress error messages
grep pattern * -s -R -n
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json_encode is returning NULL?
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If you have at least PHP 5.5, you can use json_last_error_msg(), which will return a string describing the problem.
If you don't have 5.5, but are on/above 5.3, you can use json_last_error() to see what the problem is.
It will return an integer, that you can use to identify ...
MySQL/Amazon RDS error: “you do not have SUPER privileges…”
...rust_function_creators to 1 in AWS console, to load your dump file without errors.
If you want to ignore these errors, and load the rest of the dump file, you can use the -f option:
mysql -f my_database -u my_username -p -h
my_new_database.xxxxxxxxx.us-east-1.rds.amazonaws.com < my_database.s...
Compiling with cython and mingw produces gcc: error: unrecognized command line option '-mno-cygwin'
...is solution by myself (to eliminate -mno-cygwin from cygwinccompyler). The error disappeared but then I got a different error with ld. But this is a different question. I will post it tomorrow. Now need some rest... why is so difficult to compile in windows?
– joaquin
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EntityType has no key defined error
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Lots of different things can cause this error. In my case, I mistakenly marked my "Id" field "private" instead of "public" (a habit from Java/JPA). Larry Raymond's response below is arguably the "best" reply to this question. It lists most of the common scenario...
Idiomatic way to wait for multiple callbacks in Node.js
...readFile("file.json", function (err, val) {
if (err) {
console.error("unable to read file");
}
else {
try {
val = JSON.parse(val);
console.log(val.success);
}
catch (e) {
console.error("invalid json in file");
}
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fatal error \"vector iterator + offset out of range\" \"standard C++ ...
fatal error "vector iterator + offset out of range" "standard C++ libraries out of range"代码如下：#include <iostream> #include <iterator> 使用back_inserter #include <algorithm> #include <vector> usin...代码如下：
#include <iostream>
#include <iterator>//使用back_inserter ...
Is it a good practice to use try-except-else in Python?
...able code in these cases.
"It my understanding that exceptions are not errors, they should only
be used for exceptional conditions"
In some other languages, that rule reflects their cultural norms as reflected in their libraries. The "rule" is also based in-part on performance considerations...
bundle install fails with SSL certificate verification error
...run bundle install for my Rails 3 project on Centos 5.5 it fails with an error:
28 Answers
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Batch script: how to check for admin rights
...ead.
The request is not supported.
(see screenshot #1) and will return %errorLevel% 1.
Research
So, I went searching for other commands that require elevated permissions. rationallyparanoid.com had a list of a few, so I ran each command on the two opposite extremes of current Windows OSs (X...