Use ls to only list files that start with an uppercase character.

The ls command may be used in conjunction with grep to list files that start with an uppercase letter or have an uppercase filename.

ubuntu ~/Documents $ ls | grep "^[A-Z]"
SAM
SECURITY
SYSTEM

The ls command itself may also do this.


ubuntu ~/Documents $ ls [[:upper:]]*
SAM SECURITY SYSTEM

Or this very old command. This will use ls to list only uppercase files.

( shopt -s globasciiranges; /bin/ls [a-z]* )
alowercasefile

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