99 Bottles of Beer/Shell: Difference between revisions

=={{header|PowerShell}}==

===A standard impementation using a For loop===

<lang PowerShell>for($n=99; $n -gt 0; $n--) {

"$n bottles of beer on the wall"

"$n bottles of beer"

"Take one down, pass it around"

[string]($n-1) + " bottles of beer on the wall"

""

}</lang>

===My standard implementation using for loop===

<lang PowerShell>[int]$i = 99;

for($i=99; $i -gt 0; $i--) {

write-host $i " bottles of beer on the wall";

write-host $i " bottles of beer";

write-host "Take one down, pass it around"

write-host ($i-1) " bottles of beer on the wall"

write-host ""

}

</lang>

===Consolidating the static text and using a Do...while loop===

<lang PowerShell>$n=99

do {

"{0} bottles of beer on the wall`n{0} bottles of beer`nTake one down, pass it around`n{1} bottles of beer on the wall`n" -f $n, --$n

} while ($n -gt 0)</lang>

===Consolidating the static text and using a Do...until loop===

<lang PowerShell>$n=99

do {

"{0} bottles of beer on the wall`n{0} bottles of beer`nTake one down, pass it around`n{1} bottles of beer on the wall`n" -f $n, --$n

} until ($n -eq 0)</lang>

===Consolidating the static text even more===

<lang PowerShell>$s = "{0} bottles of beer on the wall`n{0} bottles of beer`nTake one down, pass it around`n{1} bottles of beer on the wall`n"

$n=99

do { $s -f $n, --$n } while ($n -gt 0)</lang>

===Using the Pipeline===

<lang Powershell>99..1 | ForEach-Object {

$s=$( if( $_ -ne 1 ) { 's' } else { '' } )

$s2=$( if( $_ -ne 2 ) { 's' } else { '' } )

"$_ bottle$s of beer on the wall`n$_ bottle$s of beer`nTake one down`npass it around`n$( $_ - 1 ) bottle$s2 of beer on the wall`n"}</lang>