Bash uppercase

Bash how to convert text to lowercase or uppercase

# Basic syntax:
awk '{print tolower(string)}'
awk '{print 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

Bash - Convert a string from uppercase to lowercase

$ echo "$a" | tr '[:upper:]' '[:lower:]'
hi all

Source: stackoverflow.com

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

How to compare a character to uppercase in bash script

echo "enter a char"
read c

if [[ $c == [A-Z] ]];
then
    echo "upper"
elif [[ $c == [a-z] ]];
then
    echo "lower"
else 
    echo "Digit or special symbols!"
fi

-1

Source: unix.stackexchange.com

Similar codes

2 votes105 views1 answer
Curl check response headers
Shell/Bash
0 vote109 views1 answer
* branch master -> FETCH_HEAD
Shell/Bash
1 vote103 views1 answer
Please rebuild precompiled header
Shell/Bash
0 vote116 views3 answers
Failed to download pear within preferred state "stable"
Shell/Bash
0 vote121 views5 answers
Dos assign carriage return to variable
Shell/Bash
1 vote122 views1 answer
Kubectl get memory usage of pod
Shell/Bash
0 vote115 views1 answer
Nuxt .env file not load
Shell/Bash
0 vote123 views2 answers
Is there a steam repository for kali linux
Shell/Bash
0 vote128 views2 answers
Grep exclude
Shell/Bash
0 vote115 views1 answer
Gitignore dotnet mvc
Shell/Bash