It usually happens that you can not run a downloaded binary from the command line. The OS would complain that > "watchman" cannot be opened because the developer cannot be verified. macOS cannot verify that this app is free from malware. Chrome downloaded this file today at 9:30 AM from

This post will show how to let your ubuntu recognized a new volume size. * Check current space df -h Filesystem Size Used Avail Use% Mounted on udev 3.9G 0 3.9G 0% /dev tmpfs 788M 1.3M 787M 1% /run /dev/nvme0n1p1 31G 27G 4.3G 87% / tmpfs 3.

The goal: get the aws command from the awscli package to a custom directory, namely /home/transang/my-python-packages. Initially, everything was simple. But latterly it got complicated as many bugs appeared. I will introduce the bugs one by one before coming up with a stable solution for this use case.

Assume the private key location is in /home/transang/custom-key.pem. Use this command to specify the key. GIT_SSH_COMMAND='ssh -i /home/transang/custom-key.pem' git@github.com:transang/my-repo.git source [https://stackoverflow.com/a/29754018/1398479]

Ghostscript is a very useful tool in this situation. * Install ghostscript (the gs command line). sudo apt install -yq ghostscript * To extract pages from the 3rd page to the 5th page in in.pdf , write output to out.pdf gs -sDEVICE=pdfwrite -dNOPAUSE -dBATCH -dSAFER -dFirstPage=3 -dLastPage=5 -sOutputFile=

Use fontforge. To convert from ipam.ttc to ipam.ttf sudo apt install -yq fontforge fontforge -lang=ff -c 'Open("ipam.ttc"); Generate("ipam.ttf"); Close();' This command also prints the font names. Copyright (c) 2000-2014 by George Williams. See AUTHORS for Contributors. License GPLv3+: GNU GPL version 3

gperftools [https://github.com/gperftools/gperftools] is a very handy tool made by google to profile an execution. It is well coupled with pprof [https://github.com/google/pprof]. In general, gperftools generates profile data, pprof is used to view/visualize the profile result. To install gperftools git clone https:

年末調整の計算仕方 例えば年収は500万円である。そうすると、収入金額は500万円である。 * 年末調整を行う。このリンク [https://www.keisan.nta.go.jp/r1yokuaru/cat2/cat21/cat213/cid160.html]から 給与所得控除を計算する 給与所得控除の計算仕方給与所得控除=500万 x 20% + 54万=154万 * 所得金額を計算する 所得金額=収入金額-給与所得控除=500万-154万=346万 * 所得控除を計算する。以下の項目がある。参考リンク [https://www.keisan.nta.go.jp/r1yokuaru/cat2/cat22/cid055.html] 所得控除この中の控除は特に注意するのは基礎控除という控除、みんなに適用する。令和１年まで一律に38万円だったが、令和２

To get the number of sockets, cores per socket, threads per core lscpu | grep -E '^Thread|^Core|^Socket|^CPU\(' To get cache size, CPU name, frequency rate cat /proc/cpuinfo To get GPGPU information (nvidia driver is required), including memory spaces, driver version, cuda toolkit version, gpgpu name,

In my PC running Ubuntu (19.04), the bluetooth keyboard occasionally stops working unconditionally. I tried to open system settings, navigate to the bluetooth control, try switching on/off the bluetooth, but the on/off button never responses or it always reflects incorrect status. In this situation, a soft reset

This post shows some basics of networking Basic Firstly, review the 7 layers of the OSI model: 1. Physical: coax, fiber, wireless, hub, repeater 2. Data link: ethernet, ppp, switch, bridge, arp 3. Network: ip, ICMP, router 4. Transport: TCP, UDP 5. Session: API, socket, sock 6. Presentation: SSL, SSH,

In Settings, Trackpad, More Gestures, uncheck "Swipe between pages". Google Chrome will look at this setting and disable page navigation with two fingers.

TLDR: Functional Reactive Programming (FRP) is a Reactive Programming paradigm powered by Functional Programming. Reactive Programming Programming paradigm Subjective Objective Proactive paradigm proactive passive Reactive paradigm observable reactive In (traditional) proactive programming, when a source changes, all its dependence is triggered to apply the changes. class Proactive { constructor(passive){this.

All following snippets are equivalent const React = require('react') //or import React from 'react' const element = React.createElement('div', {id: 'my-div'}, 'hello world') const element = const element = { $$typeof: Symbol.for('react.element'), type: 'div', props: { id: 'my-div', children: 'hello world' } } 'div' can be replaced with react component definition

This is more a note than a full tutorial. The full tutorial can be found from the link at the end of this post. Type of table: * filter * nat * mangle * raw * security Type of chains (customizable): * PREROUTING * INPUT * OUTPUT * FORWARD * POSTROUTING Type of targets: * ACCEPT * DROP * REJECT * LOG (non-terminated) * NAT

Today, I have just found that the adsbygoogle library add all of the ads element ancestors height: auto !important style. c && (e.setProperty("height", "auto", "important") excerpt of show_ads_impl.jsThis library iterates all ancestors of the ads element and set their style to style="height: auto !important;". If

In Ubuntu, an application can be started by selecting its icon from the application list (triggered by clicking to the icon at the lower-left corner or pressing the window key). This list of icons is stored in /usr/share/applications (for all users) and ~/.local/share/applications (for a specific

It sometimes happens that a device can not be unmounted. When mounting from nautilus, "Volume is busy" titled dialog appears with the following content: "One or more applications are keeping the volume busy". If trying with the umount command, the command exits with error: "umount: /media/transang/SangWDPP: target is

sshfs is an external tool and can be installed with sudo apt install -yq sshfs. -------------------------------------------------------------------------------- Your server is at example.com. To mount a directory from the server, execute sshfs example.com: . Both and must exist. And must be empty. Disk space is occupied in the remote server, not

If you have experience with digging system log, you may be familiar with the dmesg command or the content of /var/log/dmesg. However, the content of /var/log/dmesg is usually not up to date as what is printed by dmesg command. This post will make everything clear. What

These terms sometimes confuse me with their purposes/values. This post will make everything clear with examples. All of their definitions can be found in official API docs [https://expressjs.com/en/api.html]. > req.url is not a native Express property, it is inherited from Node’s http module

By default, TeamViewer guests and generates your unique ID based on the MAC address of some specific interfaces of your machine. Hence, if you change the MAC address, then re-configure TeamViewer, the TeamViewer ID will change. Assume that you already installed TeamViewer in /opt/teamviewer. Otherwise, you can refer to

This post shows how to install TeamViewer remotely via an ssh connection * Firstly, you need to download the .deb file from TeamViewer home page [https://www.teamviewer.com/en-us/download/linux/]. wget https://download.teamviewer.com/download/linux/teamviewer_amd64.deb * Install the package with sudo dpkg -i teamviewer_amd64.