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

0 vote179 views1 answer
How to add source ip in firewalld
Shell/Bash
0 vote135 views1 answer
Git log only folder
Shell/Bash
39 votes130 views4 answers
Set email git
Shell/Bash
0 vote141 views1 answer
Linux How do you find files that have specific permissions?
Shell/Bash
5 votes126 views2 answers
Django allauth
Shell/Bash
3 votes128 views2 answers
Update metsploit kali linux
Shell/Bash
12 votes169 views1 answer
Uninstall franz ubuntu
Shell/Bash
0 vote127 views1 answer
Remove xcode archives
Shell/Bash
1 vote127 views1 answer
Whybar not showing icons
Shell/Bash
1 vote133 views1 answer
Ubuntu Install a file integrity tool to monitor changes to critical and sensitive files
Shell/Bash