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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Reverse-a-string/Sed/reverse-a-string.sed Normal file
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#!/bin/sed -f
/../! b
# Reverse a line. Begin embedding the line between two newlines
s/^.*$/\
&\
/
# Move first character at the end. The regexp matches until
# there are zero or one characters between the markers
tx
:x
s/\(\n.\)\(.*\)\(.\n\)/\3\2\1/
tx
# Remove the newline markers
s/\n//g