shell command read first lines
# credit to the Stack Overflow user in the source link
# the line is stored in a variable, remove 'line=' to print on display
line=$(head -n 1 filename)shell command read first lines
# credit to the Stack Overflow user in the source link
# the line is stored in a variable, remove 'line=' to print on display
line=$(head -n 1 filename)bash get first n characters
echo ${FOO:0:10}Copyright © 2021 Codeinu
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