cat

view wc -l without filename

cat <file> | wc -l > output

view hidden characters in file

cat -A <file>        # view all characters (tab = ^I)
cat -E <file>        # shows "\n" as "$"

view csv files with “,” in field

• https://www.stefaanlippens.net/pretty-csv.html

cat data.csv | perl -pe 's/((?<=,)|(?<=^)),/ ,/g;' | column -t -s, | less -S

EOF