小编Wak*_*nka的帖子

如果有人想从Bash调用外部程序(它作为Bash参数传递)并传递命令行选项(也作为Bash参数传递),解决方案很简单:

TCL_SCRIPT="$1"
shift
TCL_SCRIPT_ARGUMENTS="$@"
expect -f "$TCL_SCRIPT" "$TCL_SCRIPT_ARGUMENTS" 2>&1

在TCL/Expect中有类似的可能性吗？

编辑:到目前为止,我已经来了这个黑客(评论中有Bash等价物),似乎它正在运作.有人可以解释lshift程序吗？

# http://wiki.tcl.tk/918#pagetocc7993a2b
proc lshift {inputlist} {
  upvar $inputlist argv
  set arg  [lindex $argv 0]
  #set argv [lrange $argv 1 end] ;# below is much faster - lreplace can make use of unshared Tcl_Obj to avoid alloc'ing the result
  set argv [lreplace $argv[set argv {}] 0 0]
  return $arg
}

# BASH: TCL_SCRIPT="$1"
set script [lindex $argv 0]

# BASH: shift
lshift argv

# BASH: TCL_SCRIPT_ARGUMENTS="$@"
set arguments $argv

我与TCL命令尝试exec在tclsh这里是我的结果：

% set show_me_dir "ls"
ls
% exec $show_me_dir
VboxSharedFolder
% set show_me_dir "ls -la"
ls -la
% exec $show_me_dir
couldn't execute "ls -la": no such file or directory
% set show_me_dir {ls -la}
ls -la
% exec $show_me_dir
couldn't execute "ls -la": no such file or directory
% ls -la
total 141
d---------+ 1 wakatana Domain Users     0 Jan 22 19:12 .
d---------+ 1 wakatana Domain Users     0 Apr 16  2014 ..
----------+ 1 wakatana …

我正在尝试进行Windows内核调试，因此我为此设置了两台计算机：

1. 主机-调试器-运行windbg调试器的计算机
2. 目标-调试-正在调试的计算机

HOST和TARGET都运行Windows 7 32位，并且都安装了Windows Driver Kit 8.0。我做了以下步骤：

在TARGET上，我使用以下命令启用了内核调试：

bcdedit /copy {current} /d "Windows 7 wih debug"
bcdedit /debug {02b760e4-eafc-11e4-8847-ac1155aec81a} on
bcdedit /dbgsettings serial debugport:1 baudrate:115200
bcdedit /set {bootmgr} displaybootmenu yes
bcdedit /timeout 10

然后，我开始启动HOST并执行以下步骤：

1. 启动windbg
2. 文件->内核调试-> COM
3. 波特率：115200，端口：COM1，管道：未选中，重新连接：未选中，重置：0
4. 好

之后，我在HOST上的windbg命令窗口如下所示：

Microsoft (R) Windows Debugger Version 6.2.9200.20512 X86
Copyright (c) Microsoft Corporation. All rights reserved.

Opened \\.\COM1
Waiting to reconnect...

然后，我重新启动TARGET并从启动菜单中选择“带有调试功能的Windows 7”。

之后，我在HOST上的windbg命令窗口如下所示：

Microsoft (R) Windows Debugger Version 6.2.9200.20512 X86
Copyright (c) Microsoft Corporation. All rights reserved.

Opened \\.\COM1 …

这里的OP定义的功能round与作用floor在gnuplot.帮助floor说:

gnuplot> help floor
 The `floor(x)` function returns the largest integer not greater than its
 argument.  For complex numbers, `floor` returns the largest integer not
 greater than the real part of its argument.

我怎么用floor我做的:

gnuplot> floor(7.3)
         ^
         invalid command

我可以以某种方式改变数字将舍入到的小数位数吗？

我想绘制x轴很长的数据.如果我绘制整个x轴,那么绘图会缩小,几乎不可读.我发现这对SO答案指向以下 SciPy的/ matplotlib代码.但是当我尝试运行上面提到的代码时,我得到以下错误:

Traceback (most recent call last):
  File "scrollingPlot.py", line 88, in <module>
    app = MyApp()
  File "/usr/lib/python2.7/dist-packages/wx-3.0-gtk2/wx/_core.py", line 8628, in __init__
    self._BootstrapApp()
  File "/usr/lib/python2.7/dist-packages/wx-3.0-gtk2/wx/_core.py", line 8196, in _BootstrapApp
    return _core_.PyApp__BootstrapApp(*args, **kwargs)
  File "scrollingPlot.py", line 82, in OnInit
    self.frame = MyFrame(parent=None,id=-1)
  File "scrollingPlot.py", line 21, in __init__
    self.scroll_range)
  File "/usr/lib/python2.7/dist-packages/wx-3.0-gtk2/wx/_core.py", line 11226, in SetScrollbar
    return _core_.Window_SetScrollbar(*args, **kwargs)
wx._core.PyAssertionError: C++ assertion "sb" failed at ../src/gtk/window.cpp(4754) in SetScrollbar(): this window is not scrollable

PS:也欢迎其他解决方案(最好是python,R,或者简单的多平台)

PPS:我已经提到了上述错误的问题

我有这段代码，我可以在其中控制属性，例如：x 轴范围、标题、xlabel、ylabel、图例、网格、x 标签上的文本旋转：

#!/usr/bin/python
import datetime
import numpy as np
import matplotlib
import matplotlib.pyplot as plt
from matplotlib.widgets import Slider
from matplotlib.dates import DateFormatter
############################################
# generate data
x = np.arange(0,10)
y0 = np.arange(0,10)
y1 = np.random.rand(10)
y2 = np.random.rand(10)
############################################
# initialize (sub)plot(s)
fig, ax = plt.subplots()
############################################
# width of x axis
x_min_index = 0
x_max_index = 3

x_min = x[x_min_index]
x_max = x[x_max_index]
############################################
# create (sub)plot
l, = plt.plot(x,y0, label="plot1a")
l, = plt.plot(x,y1, label="plot1b")
l, = …

我以前用awk处理csv文件,这是我的第一个脚本:

tail -n +2 shifted_final.csv | awk -F, 'BEGIN {old=$2} {if($2!=old){print $0; old=$2;}}' | less

此脚本在第2列中查找重复值(如果第n行的值与第n + 1行,n + 2 ...相同),则仅打印第一次出现的值.例如,如果您输入以下输入:

ord,orig,pred,as,o-p
1,0,0,1.0,0
2,0,0,1.0,0
3,0,0,1.0,0
4,0,0,0.0,0
5,0,0,0.0,0
6,0,0,0.0,0
7,0,0,0.0,0
8,0,0,0.0,0
9,0,0,0.0,0
10,0,0,0.0,0
11,0,0,0.0,0
12,0,0,0.0,0
13,0,0,0.0,0
14,0,0,0.0,0
15,0,0,0.0,0
16,0,0,0.0,0
17,0,0,0.0,0
18,0,0,0.0,0
19,0,0,0.0,0
20,0,0,0.0,0
21,0,0,0.0,0
22,0,0,0.0,0
23,4,0,0.0,4
24,402,0,1.0,402
25,0,0,1.0,0

然后输出将是:

1,0,0,1.0,0
23,4,0,0.0,4
24,402,0,1.0,402
25,0,0,1.0,0

编辑: 我添加第二个脚本有点挑战:

第二个脚本执行相同操作但打印最后一次重复出现:

tail -n +2 shifted_final.csv | awk -F, 'BEGIN {old=$2; line=$0} {if($2==old){line=$0}else{print line; old=$2; line=$0}} END {print $0}' | less

它的输出将是:

22,0,0,0.0,0
23,4,0,0.0,4
24,402,0,1.0,402
25,0,0,1.0,0

我认为R是应该处理这些任务的强大语言,但我发现只有从R等调用awk脚本的问题.如何在R中执行此操作？

我有这样的数据:

set.seed(1)
a <- pnorm(seq(-2, 2, 0.05))
a[7] <- NA
a[19:24] <- NA
a
# [1] 0.02275013 0.02558806 0.02871656 0.03215677 0.03593032 0.04005916
# [7]         NA 0.04947147 0.05479929 0.06057076 0.06680720 0.07352926
#[13] 0.08075666 0.08850799 0.09680048 0.10564977 0.11506967 0.12507194
#[19]         NA         NA         NA         NA         NA         NA
#[25] 0.21185540 0.22662735 0.24196365 0.25784611 0.27425312 0.29115969
#[31] 0.30853754 0.32635522 0.34457826 0.36316935 0.38208858 0.40129367
#[37] 0.42074029 0.44038231 0.46017216 0.48006119 0.50000000 0.51993881
#[43] 0.53982784 0.55961769 0.57925971 0.59870633 0.61791142 0.63683065
#[49] 0.65542174 0.67364478 0.69146246 0.70884031 0.72574688 0.74215389
#[55] …

我已经根据官方教程设置了单节点 kubernetes 。

除了官方文档，我还设置了单节点集群：

kubectl taint nodes --all node-role.kubernetes.io/master-

残疾人驱逐限制：

cat << EOF >> /var/lib/kubelet/config.yaml
evictionHard:
  imagefs.available: 1%
  memory.available: 100Mi
  nodefs.available: 1%
  nodefs.inodesFree: 1%
EOF

systemctl daemon-reload
systemctl restart kubelet

并为 Docker 设置 systemd 驱动程序：

cat << EOF > /etc/docker/daemon.json
{
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m"
  },
  "storage-driver": "overlay2"
}
EOF

systemctl daemon-reload
systemctl restart docker

我试过以下：

docker build -t localhost:5000/my-image .
kubectl run -it --rm --restart=Always --image=localhost:5000/my-image my-image

但是在 pod 日志中我看到ImagePullBackOff. 如果我设置了本地存储库并 …

我有以下代码：

#include <stdio.h>
int main()
{
    int i;
    char c;
    char *format_string = "%d\n";
    scanf(format_string, &i);
    printf("read: %d\n", i);

    printf("Let's check what is in the input buffer:\n");
    while (scanf("%c", &c) == 1)
    {
        printf("read from input buf: %d\n", c);
    }
}

如果我按以下方式运行代码：

echo "5" | ./specific.out

输出如下：

read: 5
Let's check what is in the input buffer:

这里我有上面代码的更通用版本，我从命令行传递格式字符串：

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char *argv[])
{
    if (argc != 2)
    {
        exit(EXIT_SUCCESS);
    }

    int i;
    char c;

    char …