Phrase reversals: Difference between revisions
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(Added a second version to UNIX Shell) |
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=={{header|UNIX Shell}}== |
=={{header|UNIX Shell}}== |
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===Version 1=== |
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Requires "rev" command. |
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{{works with|Almquist Shell}} |
{{works with|Almquist Shell}} |
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{{works with|bash}} |
{{works with|bash}} |
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<lang sh>s1="rosetta code phrase reversal" |
<lang sh>s1="rosetta code phrase reversal" |
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echo "Original string ----------------------> "$s1 |
echo "Original string ----------------------> "$s1 |
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echo -n "1.) Reverse the string ---------------> " |
echo -n "1.) Reverse the string ---------------> " |
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echo $s1|rev |
echo $s1|rev |
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echo -n "2.) Reverse characters of each word --> " |
echo -n "2.) Reverse characters of each word --> " |
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echo $s1|tr " " "\n"|rev|tr "\n" " ";echo |
echo $s1|tr " " "\n"|rev|tr "\n" " ";echo |
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echo -n "3.) Reverse word order ---------------> " |
echo -n "3.) Reverse word order ---------------> " |
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word_num=$(echo $s1|wc -w) |
word_num=$(echo $s1|wc -w) |
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2.) Reverse characters of each word --> attesor edoc esarhp lasrever |
2.) Reverse characters of each word --> attesor edoc esarhp lasrever |
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3.) Reverse word order ---------------> reversal phrase code rosetta</pre> |
3.) Reverse word order ---------------> reversal phrase code rosetta</pre> |
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===Version 2=== |
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Does not require "rev" command. |
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{{works with|Almquist Shell}} |
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{{works with|bash}} |
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{{works with|ksh93}} |
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<lang sh>s1="rosetta code phrase reversal" |
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echo "Original string --> "$s1 |
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echo -n "1.) Reverse the string --> " |
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length=$(echo $s1|wc -c) |
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while [ $length != 0 ];do |
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echo $s1|cut -c$length|tr -d "\n" |
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length=$(expr $length - 1) |
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done;echo |
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echo -n "2.) Reverse characters of each word --> " |
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word_quantity=$(echo $s1|wc -w) |
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word_quantity=$(expr $word_quantity + 1) |
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word_num=1 |
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while [ $word_num != $word_quantity ];do |
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length=$(echo $s1|cut -d " " -f $word_num|wc -c) |
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while [ $length != 0 ];do |
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echo $s1|cut -d " " -f $word_num|cut -c$length|tr -d "\n" |
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length=$(expr $length - 1);done;echo -n " " |
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word_num=$(expr $word_num + 1);done;echo |
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echo -n "3.) Reverse word order --> " |
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word_num=$(echo $s1|wc -w) |
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while [ $word_num != 0 ];do |
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echo -n $(echo $s1|cut -d " " -f $word_num);echo -n " " |
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word_num=$(expr $word_num - 1);done;echo</lang> |
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{{out}} |
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<pre>Original string --> rosetta code phrase reversal |
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1.) Reverse the string --> lasrever esarhp edoc attesor |
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2.) Reverse characters of each word --> attesor edoc esarhp lasrever |
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3.) Reverse word order --> reversal phrase code rosetta</pre> |
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=={{header|zkl}}== |
=={{header|zkl}}== |
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