cant replace values by unix env variables in sed - dBforums

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> cant replace values by unix env variables in sed

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#1 (permalink)

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01-15-09, 21:06

ymho

ymho is offline

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Join Date: Jul 2006

Posts: 109

cant replace values by unix env variables in sed

pls advise

A=1
B=2
C=3
echo ABC | sed '
s/A/$A/
s/B/$B/
s/C/$C/
'
==> result
$A$B$C
==> expected result
123

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#2 (permalink)

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01-16-09, 03:57

mike_bike_kite mike_bike_kite is offline

mike_bike_kite is offline

vaguely human

Join Date: Jun 2007

Location: London

Posts: 2,519

Replace the single quotes with double quotes. The shell doesn't do variable substitution within single quotes.

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#3 (permalink)

Old

01-19-09, 04:36

ymho

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Posts: 109

Talking

thanks a lot

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