From Wsms

Note: This page should be titled echo (all lowercase). It is echo due to technical limitations of Mediawiki.

Echo spits things back to stdout.

Common Usage

Look at the value of a shell variable:

[ggeller@arthur ~]$ echo $PATH

Look at the value of a shell variable and don't print a newline:

[ggeller@arthur ~]$ echo -n $PATH

Count the number of characters in a string:

[ggeller@arthur ~]$ echo -n 1000000000001100101111111001011001001011111110010110010011000000 | wc -c

Echo putting the newline in manually

[ggeller@arthur ~]$ echo -en "test\n"

Tips

see also

man chmod
Printf