/Shell/Bash/Convert capital letters to lowercase in shell script

Convert capital letters to lowercase in shell script

Bash how to convert text to lowercase or uppercase

# Basic syntax:
tolower(string)
toupper(string)

# Example usage:
awk '{print tolower($0)}' input_file
# This prints every row ($0) converted to lowercase

awk '{print toupper($3)}' input_file
# This would print the third field ($3) converted to uppercase

Source: thomas-cokelaer.info

Convert capital letters to lowercase in shell script

x="HELLO"
echo $x  # HELLO

y=${x,,}
echo $y  # hello

z=${y^^}
echo $z  # HELLO

Source: stackoverflow.com

Similar codes

8 votes302 views2 answers
Anaconda navigator linux command
Shell/Bash
1 vote293 views1 answer
How to install nvm on linux terminal
Shell/Bash
0 vote272 views1 answer
Uninstall a package command shell
Shell/Bash
1 vote299 views1 answer
How to install gnome user theme extension
Shell/Bash
0 vote288 views1 answer
Bash loop with if
Shell/Bash
1 vote305 views1 answer
Sudo apt install microsoft-edge-dev
Shell/Bash
2 votes290 views4 answers
How to use zsh on mac
Shell/Bash
0 vote264 views1 answer
Ubuntu apt get without cd rom
Shell/Bash
0 vote283 views1 answer
Clone with ssh gitlab fatal: Could not read from remote repository.
Shell/Bash
0 vote316 views1 answer
Psycopg2 error pip install error
Shell/Bash