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

3 votes279 views1 answer
Main vs master in git
Shell/Bash
0 vote285 views2 answers
Git clear local branch list
Shell/Bash
4 votes283 views3 answers
Get length of array bash
Shell/Bash
1 vote295 views1 answer
Git is not working after macOS Update (xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools)
Shell/Bash
0 vote310 views1 answer
Payfast nuget
Shell/Bash
0 vote277 views1 answer
Homestead.yaml adding provisions
Shell/Bash
5 votes291 views1 answer
Download flutter through git
Shell/Bash
0 vote274 views1 answer
Apt remove package completely with configuration
Shell/Bash
12 votes290 views4 answers
How to update a local git repository
Shell/Bash
-3 votes308 views6 answers
Flush dns
Shell/Bash