Thereadcommand is used to take input from the user. Reading a single input value: echo"Enter your name:"readNAMEecho"Hello,$NAME!" Output after entering "Alice": Enter your name: Alice Hello, Alice! Reading multiple input values:
6. Get User Input To take input from users, we’ll use thereadbash command. First, create a new bash shell file: nano read.sh Then, fill it with the script below: #!/bin/bash echo "What is your age?" read age echo "Wow, you look younger than $age years old" In the above e...
Useful to take a large generated AWS config.ini from aws_sso_configs.sh and then split it into subdirectories for direnvs aws_s3_bucket.sh - creates an S3 bucket, blocks public access, enables versioning, encryption, and optionally locks out any given user/group/role ARNs via a bucket ...
#Let's get some information from the user and add it to our scripts with stanard input and read echo "What is your name? " read name #Here standard output directed to append a file to learnToScirptStandardOutput echo "$name, this will take standard output with append >> and redirect t...
auto-complete automatically suggests a possible completion on user input. The suggested contents can be inserted by typing S-RET (when the cursor is at the end of the command line, you can also use right, C-f, or end to insert the suggestion). If you want to insert only the first ...
这个名字可以用大括号括起来,如${10}、${PWD}或${USER}。 位置参数 命令行上的参数可以作为编号参数供 shell 程序使用。第一个参数是$1,第二个是$2,以此类推。 您可以通过使用位置参数使第一章中的hw脚本更加灵活。清单 2-1 称之为hello。 清单2-1。hello #: Description: print Hello and the first...
#Let's get some information from the user and add it to our scripts with stanard input and read echo "What is your name? " read name #Here standard output directed to append a file to learnToScirptStandardOutput echo "$name, this will take standard output with append >> and redirect ...
grep $USER /etc/passwd More input> then echo "your user account is not managed locally"; fi your user account is not managed locally anny > echo $? 0 anny > 以下能得到同样的结果: anny > grep $USER /etc/passwd anny > if [ $? −ne 0 ] ; then echo "not a local account" ;...
If set, the value is the number of consecutive EOF characters which must be typed as the first characters on an input line GNU Bash-4.1 Last change: 2009 December 29 23 User Commands BASH(1) before bash exits. If the variable exists but does not have a numeric value, or has no value...
read variable would take whatever input the user entered and store it in $variable. We then access this with echo and set up a neat sentence. This script is reasonably messy though; read has another function that could halve the size of this script. clear read -p "Please enter your ...