New answers tagged wc
@steeldriver's comment is correct: cat shows line-endings with $ (as vi might if you asked it nicely, using ":set list"). The extra character per line is the newline (an invisible character at the end of each line of text). If you want only a count of the printable text, you could filter the file before processing it with wc, e.g., using tr with the -d ...
ls -l will display how many files contain the currunt directory and in long format. in total n files +1 line for total X as header. | wc -l counts the total lines that is fed so in total you will have n+1 (lines+(1)header after executing ls -l | wc -l
Yes, and also symlinks and sockets. And the first line (there are several questions here about what that number means) will also be counted. But you'll typically only find devices in /dev (with subdirectories) and there's typically very few files there, so I'm wondering if that's really what you want to do. What are you trying to accomplish? Also ls ...
No ls -l | wc -l will report the number of lines the ls -l command would give. Roughly the number of files+directories in the current directory plus something for the header.
It will show the number of lines output by ls -l which will include everything that has an entry in the current directory, including files (including special files if present), links, and directories.
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