1echo(1B) SunOS/BSD Compatibility Package Commands echo(1B)
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6 echo - echo arguments to standard output
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9 /usr/ucb/echo [-n] [argument]
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13 echo writes its arguments, separated by BLANKs and terminated by a NEW‐
14 LINE, to the standard output.
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17 echo is useful for producing diagnostics in command files and for send‐
18 ing known data into a pipe, and for displaying the contents of environ‐
19 ment variables.
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22 For example, you can use echo to determine how many subdirectories
23 below the root directory (/) is your current directory, as follows:
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25 o echo your current-working-directory's full pathname
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27 o pipe the output through tr to translate the path's embedded
28 slash-characters into space-characters
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30 o pipe that output through wc -w for a count of the names in
31 your path.
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33 example% /usr/bin/echo "echo $PWD | tr '/' ' ' | wc -w"
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38 See tr(1) and wc(1) for their functionality.
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41 The shells csh(1), ksh(1), and sh(1), each have an echo built-in com‐
42 mand, which, by default, will have precedence, and will be invoked if
43 the user calls echo without a full pathname. /usr/ucb/echo and csh's
44 echo() have an -n option, but do not understand back-slashed escape
45 characters. sh's echo(), ksh's echo(), and /usr/bin/echo, on the other
46 hand, understand the black-slashed escape characters, and ksh's echo()
47 also understands \a as the audible bell character; however, these com‐
48 mands do not have an -n option.
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51 -n Do not add the NEWLINE to the output.
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55 See attributes(5) for descriptions of the following attributes:
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60 ┌─────────────────────────────┬─────────────────────────────┐
61 │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
62 ├─────────────────────────────┼─────────────────────────────┤
63 │Availability │SUNWscpu │
64 └─────────────────────────────┴─────────────────────────────┘
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67 csh(1), echo(1), ksh(1), sh(1), tr(1), wc(1), attributes(5)
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70 The -n option is a transition aid for BSD applications, and may not be
71 supported in future releases.
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75SunOS 5.11 3 Aug 1994 echo(1B)