echo(1B) SunOS/BSD Compatibility Package Commands echo(1B)NAMEecho - echo arguments to standard output
SYNOPSIS
/usr/ucb/echo [-n] [argument]
DESCRIPTIONecho writes its arguments, separated by BLANKs and terminated by a NEW‐
LINE, to the standard output.
echo is useful for producing diagnostics in command files and for send‐
ing known data into a pipe, and for displaying the contents of environ‐
ment variables.
For example, you can use echo to determine how many subdirectories
below the root directory (/) is your current directory, as follows:
o echo your current-working-directory's full pathname
o pipe the output through tr to translate the path's embedded
slash-characters into space-characters
o pipe that output through wc -w for a count of the names in
your path.
example% /usr/bin/echo "echo $PWD | tr '/' ' ' | wc -w"
See tr(1) and wc(1) for their functionality.
The shells csh(1), ksh(1), and sh(1), each have an echo built-in com‐
mand, which, by default, will have precedence, and will be invoked if
the user calls echo without a full pathname. /usr/ucb/echo and csh's
echo() have an -n option, but do not understand back-slashed escape
characters. sh's echo(), ksh's echo(), and /usr/bin/echo, on the other
hand, understand the black-slashed escape characters, and ksh's echo()
also understands \a as the audible bell character; however, these com‐
mands do not have an -n option.
OPTIONS-n Do not add the NEWLINE to the output.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Availability │compatibility/ucb │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOcsh(1), echo(1), ksh(1), sh(1), tr(1), wc(1), attributes(5)NOTES
The -n option is a transition aid for BSD applications, and may not be
supported in future releases.
SunOS 5.11 3 Aug 1994 echo(1B)
