- v1.3.x (latest)
- v1.2.x
- v1.1 and earlier
- Overview
- Attributes as Blocks - Configuration Language
- Data Sources
- Overview
- abs
- abspath
- alltrue
- anytrue
- base64decode
- base64encode
- base64gzip
- base64sha256
- base64sha512
- basename
- bcrypt
- can
- ceil
- chomp
- chunklist
- cidrhost
- cidrnetmask
- cidrsubnet
- cidrsubnets
- coalesce
- coalescelist
- compact
- concat
- contains
- csvdecode
- dirname
- distinct
- element
- endswith
- file
- filebase64
- filebase64sha256
- filebase64sha512
- fileexists
- filemd5
- fileset
- filesha1
- filesha256
- filesha512
- flatten
- floor
- format
- formatdate
- formatlist
- indent
- index
- join
- jsondecode
- jsonencode
- keys
- length
- list
- log
- lookup
- lower
- map
- matchkeys
- max
- md5
- merge
- min
- nonsensitive
- one
- parseint
- pathexpand
- pow
- range
- regex
- regexall
- replace
- reverse
- rsadecrypt
- sensitive
- setintersection
- setproduct
- setsubtract
- setunion
- sha1
- sha256
- sha512
- signum
- slice
- sort
- split
- startswith
- strrev
- substr
- sum
- templatefile
- textdecodebase64
- textencodebase64
- timeadd
- timecmp
- timestamp
- title
- tobool
- tolist
- tomap
- tonumber
- toset
- tostring
- transpose
- trim
- trimprefix
- trimspace
- trimsuffix
- try
- type
- upper
- urlencode
- uuid
- uuidv5
- values
- yamldecode
- yamlencode
- zipmap
- Upgrading to Terraform v1.3
- v1.x Compatibility Promises
- Terraform Internals
- Intro to Terraform
- Configuration Language
- Terraform CLI
- Terraform Cloud
- Terraform Enterprise
- Provider Use
- Plugin Development
- Registry Publishing
- Integration Program
- Terraform Tools
- CDK for Terraform
- Glossary
Terraform Language
Other Docs
A new platform for documentation and tutorials is launching soon.
We are migrating Terraform documentation into HashiCorp Developer, our new developer experience.
»upper
Function
upper
converts all cased letters in the given string to uppercase.
»Examples
> upper("hello") HELLO > upper("алло!") АЛЛО!
> upper("hello")
HELLO
> upper("алло!")
АЛЛО!
This function uses Unicode's definition of letters and of upper- and lowercase.