Screen Output: echo

• Page 1066 in the textbook

• A quick way to have a look at variables is to use echo with some useful escape sequences:

echo [-e][-n][-E] [argument ...]

• -n prevents a newline at the end of the echo
• -e permits the use of escape codes
• -E disables escape codes (default).

• The full list of escape codes is in the textbook, but the most useful probably include

• \a alert
• \c no newline (used at end, same as -n)
• \n newline right here
• \t tab, for formatting output