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How to output a multiline string in Bash?
...
Here documents are often used for this purpose.
cat << EOF
usage: up [--level <n>| -n <levels>][--help][--version]
Report bugs to:
up home page:
EOF
They are supported in all Bourne-derived shells including all versions of Bash.
...
Delete directories recursively in Java
...rn FileVisitResult.CONTINUE;
}
@Override
public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
Files.delete(dir);
return FileVisitResult.CONTINUE;
}
});
share
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How to create PDF files in Python [closed]
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I suggest pyPdf. It works really nice. I also wrote a blog post some while ago, you can find it here.
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max value of integer
...(otherwise it is reserved for the sign bit).
Here's a short table of the possible values for the possible data types:
width minimum maximum
signed 8 bit -128 +127
signed 16 bit ...
How to get the home directory in Python?
...
You want to use os.path.expanduser.
This will ensure it works on all platforms:
from os.path import expanduser
home = expanduser("~")
If you're on Python 3.5+ you can use pathlib.Path.home():
from pathlib import Path
home = str(Path.home...
How to get unique device hardware id in Android? [duplicate]
...ice ID in Android which cannot be changed when performing a phone reset or OS update?
3 Answers
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tcp端口状态ESTABLISHED、TIME_WAIT、CLOSE_WAIT 、SYN_RECV等详解 - C/C++...
...TIME_WAIT状态下的socket不能被回收使用。 具体现象是对于一个处理大量短连接的服务器，如果是由服务器主动关闭客户端的连接，将导致服务器端存在大量的处于TIME_WAIT状态的socket，甚至比处于Established状态下的socket多的多，严重...
Get bitcoin historical data [closed]
...import time
import logging
import sys
import datetime
import signal
import os
logging.basicConfig()
log_file_fd = None
def sigint_and_sigterm_handler(signal, frame):
global log_file_fd
log_file_fd.close()
sys.exit(0)
class BitstampLogger:
def __init__(self, log_file_path, log_fi...
How do I check if file exists in Makefile so I can delete it?
...le exists:
ifeq ($(UNAME),Darwin)
SHELL := /opt/local/bin/bash
OS_X := true
else ifneq (,$(wildcard /etc/redhat-release))
OS_RHEL := true
else
OS_DEB := true
SHELL := /bin/bash
endif
Update:
I found a way which is really working for me:
ifneq ("$(wildcard $(PATH_...
VS2005混合编译ARM汇编代码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...S2005混合编译ARM汇编代码公司HW team有人希望可以给他们写一个在WinCE上，单独读写DDR的工具，以方便他们量测Memory读写时的硬件信号。在开发过程中，发现简单的在...公司HW team有人希望可以给他们写一个在WinCE上，单独读写DDR的...