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Importing data from a JSON file into R
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Also, Error in function (type, msg, asError = TRUE) : Protocol "s3" not supported or disabled in libcurl
– d8aninja
Aug 30 '17 at 19:05
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How can I generate a unique ID in Python? [duplicate]
...have to manually kill uuidd as root. I worked around this by setting uuid._uuid_generate_time and uuid._uuid_generate_random to None so the uuid module never used the native implementation. (That should really be an option anyway; generating V4 random UUIDs causing a daemon to be started is comple...
JavaScript isset() equivalent
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the problem with this is that you get an error when you try to check deeper properties, for example: obj.thisdoesntexist.foo !== undefined. In PHP you can use isset or empty and safely at any deep.
– Enrique
Aug 21 '11 at 16:35...
While loop to test if a file exists in bash
...some time.
PS This also causes an annoying number of "Stale file handler" errors.
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boost自定义composite_key_compare比较函数 - C/C++ - 清泛网 - 专注C/C++及内核技术
boost自定义composite_key_compare比较函数composite_key_compare指定boost多容器元素的比较方法，当然我们也可以自定义比较函数。另外，如果调试过程中遇到很奇怪的问题，可以在自定义比较函数中下断点进行调试。
// boost_demo.cpp : 定义...
OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网 - 专注IT技能提升
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zypper install bcc-devel
#zypper install bcc-devel-0.22.0-lp151.127.1.x86_64 #安装失败的话，可以尝试
3、安装bpftrace（参考：INSTALL.md）：
OCICLI https://software.opensuse.org/ymp/home:pavlix:Kernel/openSUSE_Leap_15.1/bpftrace.ymp
4、验证：
bpftrace
USAGE:
...
OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网 - 专注IT技能提升
...
zypper install bcc-devel
#zypper install bcc-devel-0.22.0-lp151.127.1.x86_64 #安装失败的话，可以尝试
3、安装bpftrace（参考：INSTALL.md）：
OCICLI https://software.opensuse.org/ymp/home:pavlix:Kernel/openSUSE_Leap_15.1/bpftrace.ymp
4、验证：
bpftrace
USAGE:
...
OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网移动版 - 专注IT技能提升
...
zypper install bcc-devel
#zypper install bcc-devel-0.22.0-lp151.127.1.x86_64 #安装失败的话，可以尝试
3、安装bpftrace（参考：INSTALL.md）：
OCICLI https://software.opensuse.org/ymp/home:pavlix:Kernel/openSUSE_Leap_15.1/bpftrace.ymp
4、验证：
bpftrace
USAGE:
...
OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网 - 专注IT技能提升
...
zypper install bcc-devel
#zypper install bcc-devel-0.22.0-lp151.127.1.x86_64 #安装失败的话，可以尝试
3、安装bpftrace（参考：INSTALL.md）：
OCICLI https://software.opensuse.org/ymp/home:pavlix:Kernel/openSUSE_Leap_15.1/bpftrace.ymp
4、验证：
bpftrace
USAGE:
...
OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网 - 专注IT技能提升
...
zypper install bcc-devel
#zypper install bcc-devel-0.22.0-lp151.127.1.x86_64 #安装失败的话，可以尝试
3、安装bpftrace（参考：INSTALL.md）：
OCICLI https://software.opensuse.org/ymp/home:pavlix:Kernel/openSUSE_Leap_15.1/bpftrace.ymp
4、验证：
bpftrace
USAGE:
...