[Raspberry Pi] installing the node Environment

[Raspberry Pi] installing the node Environment
This article is not about node compilation and installation. It is said that it takes a long time, so at first I refused. This article shows how to deploy ndoe compiled execution files. The download directory on the node official website contains the compiled execution files for arm. Address here: https://nodejs.org/dist/v4.2.1/ select the right Version Download the right version to get on Raspberry Pi, the right version of the choice is like this: SSH login on Raspberry Pi, the console will display the relevant information: the last word of the above 4th lines of text (ignore empty lines) is not armv71, perfect match. If you have a display device directly connected to Raspberry Pi, then, you can enter uname-a in the terminal window to display the system information. You can also find the information about the system architecture of armv71. Currently, I can only provide these two types of information, in addition, my hardware is Raspberry Pi 2 generation B type (E14). If it is the same hardware, you can simply select armv71. You can download it after you select the desired version. Download the https://nodejs.org/dist/v4.2.1/node-v4.2.1-linux-armv7l.tar.gz or use your PC, sftp to Raspberry Pi. Decompress the tar xvzf node-v4.2.1-linux-armv7l.tar.gz to move the mv node-v4.2.1-linux-armv7l/usr/local/bin configuration to make the node and npm commands valid in all directories, or to create a link between node and npm in an existing PATH, or add the node and npm paths to the PATH. I selected the link scheme. Node link sudo ln/usr/local/bin/node-v4.2.1-linux-armv71/bin/node/usr/local/bin/nodenpm link npm in node-v4.2.1-linux-armv71/bin directory is soft chain by default to node-v4.2.1-linux-armv71/lib /node_modules/npm/bin/npm-cli.js due to loading path and current working directory problems, there will be problems with direct hard chain or soft chain, two in the node-v4.2.1-linux-armv71/lib/node_modules/npm/bin/directory there is a bash script named npm, just link this npm. Sudo ln-s/usr/local/bin/node-v4.2.1-linux-armv71/lib/node_modules/npm/bin/npm/usr/local/bin/npm try npm-v and an error is found, the npmlog module is not found, which is also a working directory problem. Open the script and find that the script is qualified for a slight transformation. Paste the modified file content:

#!/bin/sh(set -o igncr) 2>/dev/null && set -o igncr; # cygwin encoding fixbasedir=$(dirname `readlink -f $0`)cd $basedircase `uname` in    *CYGWIN*) basedir=`cygpath -w "$basedir"`;;esacNODE_EXE="$basedir/node.exe"if ! [ -x "$NODE_EXE" ]; then  NODE_EXE=nodefiNPM_CLI_JS="$basedir/node_modules/npm/bin/npm-cli.js"if ! [ -x "$NPM_CLI_JS" ]; then  NPM_CLI_JS=npm-cli.jsficase `uname` in  *CYGWIN*)    NPM_PREFIX=`"$NODE_EXE" "$NPM_CLI_JS" prefix -g`    NPM_PREFIX_NPM_CLI_JS="$NPM_PREFIX/node_modules/npm/bin/npm-cli.js"    if [ -f "$NPM_PREFIX_NPM_CLI_JS" ]; then      NPM_CLI_JS="$NPM_PREFIX_NPM_CLI_JS"    fi    ;;esac"$NODE_EXE" "$NPM_CLI_JS" "$@"

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