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Bash: Strip trailing linebreak from output
...-l log.txt`
– Satya
Sep 30 '13 at 4:05
9
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How to wait for a number of threads to complete?
...o capture any exceptions that occurred and store them locally (or store an error message/condition). In the example, f.get() returns your object that you submitted to the ExecutorService. Your object could have a method for retrieving any exceptions/error conditions. Depending on how you modify the ...
搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...前几篇文章。
任意登陆一个机器，比如登陆192.168.0.136，连接mongodb
#设置第一个分片副本集
/data/mongodbtest/mongodb-linux-x86_64-2.4.8/bin/mongo 127.0.0.1:22001
#使用admin数据库
use admin
#定义副本集配置
config = { _id:"shard1", members:[
...
How to unmount a busy device
...R corrupt open files. Programs accessing target DEVICE/NFS files may throw errors OR could not work properly after force unmount.
Do execute these commands when not inside mounted Folder/Drive/Device.
share
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How can I ssh directly to a particular directory?
...couldn't allocate a pseudo-tty I suppose) and kept me giving the following error:
Pseudo-terminal will not be allocated because stdin is not a terminal
I could get around this issue passing "cd to dir + my command" as a parameter of the ssh command (to not have to allocate a Pseudo-terminal) and ...
std::vector performance regression when enabling C++11
...no choice but to mark it inline otherwise you will get multiple definition errors from the linker. If that is what you meant then OK.
– Ali
Jan 24 '14 at 19:25
...
How to check if a symlink exists
...ou can do all these tests and
get an exit status whose value indicates the error condition.
if [ ! \( -e "${file}" \) ]
then
echo "%ERROR: file ${file} does not exist!" >&2
exit 1
elif [ ! \( -f "${file}" \) ]
then
echo "%ERROR: ${file} is not a file!" >&2
exit 2
e...
How can I pass arguments to a batch file?
...like "&"^&, as it's not possible to access %1 without producing an error.
set var=%1
set "var=%1"
set var=%~1
set "var=%~1"
The lines expand to
set var="&"&
set "var="&"&"
set var="&"&
set "var="&"&"
And each line fails, as one of the & is ou...
How can I make PHP display the error instead of giving me 500 Internal Server Error [duplicate]
This has never happened before. Usually it displays the error, but now it just gives me a 500 internal server error. Of course before, when it displayed the error, it was different servers. Now I'm on a new server (I have full root, so if I need to configure it somewhere in the php.ini, I can.) Or p...
Real life example, when to use OUTER / CROSS APPLY in SQL
... reference the outer table, where INNER JOIN cannot do this(throws compile error). When finding the last two dates, joining is done inside CROSS APPLY ie, WHERE M.ID=D.ID.
2. When we need INNER JOIN functionality using functions.
CROSS APPLY can be used as a replacement with INNER JOIN when we ne...