Convert file contents from snake_case to camelCase

snakeToCamel.sh

#!/bin/sh


if [[ "$@" == "" ]]; then
    echo "$0: No files specified"
    echo "$0 <file> [<file2>]"
    exit 1
fi


for file in $@; do
    tmpfile="$(mktemp /tmp/$(basename $file).XXXXXXXXX)"
    awk '{
        head = ""
        tail = $0
        while ( match(tail,/[[:lower:][:digit:]]_[[:lower:][:digit:]]/) ) {
            head = head substr(tail,1,RSTART-1) substr(tail,RSTART, 1) toupper(substr(tail,RSTART+2, 1))
            tail = substr(tail,RSTART+3)
        }
        print head tail
    }' "$file"  > "$tmpfile"

    mv "$tmpfile" "$file"
done

ack '[[:lower:][:digit:]]_[[:lower:][:digit:]]' src_dir -l | xargs ./snakeToCamel.sh