cheatsheet-tldr/tldr/printf

---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# printf
 
> Format and print text.
> More information: <https://www.gnu.org/software/coreutils/printf>.
 
- Print a text message:
 
`printf "{{%s
}}" "{{Hello world}}"`
 
- Print an integer in bold blue:
 
`printf "{{%.3d
}}" {{42}}`
 
- Print a float number with the Unicode Euro sign:
 
`printf "{{€ %.2f
}}" {{123.4}}`
 
- Print a text message composed with environment variables:
 
`printf "{{var1: %s var2: %s
}}" "{{$VAR1}}" "{{$VAR2}}"`
 
- Store a formatted message in a variable (does not work on zsh):
 
`printf -v {{myvar}} {{"This is %s = %d
" "a year" 2016}}`
 
- Print a hexadecimal, octal and scientific number:
 
`printf "{{hex=%x octal=%o scientific=%e}}" 0x{{FF}} 0{{377}} {{100000}}`