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Full Discussion: Advanced For loop
Top Forums Shell Programming and Scripting Advanced For loop Post 64440 by bhargav on Tuesday 1st of March 2005 01:12:59 PM
Old 03-01-2005
Quote:
a VERY ugly hack.... gotta thing of a bit more graceful solution withOUT temp files:
Code:

#!/bin/ksh a='1 2 3 4 5' b='a b c d e' echo "$a" | tr ' ' '\n' > /tmp/pa echo "$b" | tr ' ' '\n' > /tmp/pb for i in $(paste -d : /tmp/pa /tmp/pb) do echo "[$i]" done

vgersh99 ! your script is giving the following o/p.

[1]
[a]
[2]
[b]
[3]
[c]
[4]
[d]
[5]
[e]




I do n't think we need for loop there ... Right ?
Just

Code:
#!/bin/ksh

a='1 2 3 4 5'
b='a b c d e'

echo "$a" | tr ' ' '\n' > /tmp/pa
echo "$b" | tr ' ' '\n' > /tmp/pb

paste -d " " /tmp/pa /tmp/pb

does the job.
 

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echo(1B)					     SunOS/BSD Compatibility Package Commands						  echo(1B)

NAME
echo - echo arguments to standard output SYNOPSIS
/usr/ucb/echo [-n] [argument] DESCRIPTION
echo writes its arguments, separated by BLANKs and terminated by a NEWLINE, to the standard output. echo is useful for producing diagnostics in command files and for sending known data into a pipe, and for displaying the contents of envi- ronment 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 command, 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 commands 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 |SUNWscpu | +-----------------------------+-----------------------------+ SEE ALSO
csh(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 5.10 3 Aug 1994 echo(1B)
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