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#Bash+coreutils, 120 ASCII, 94 Unicode

###ASCII:

c=clock
f(){ echo $[++i], $[++i], $[++i] o\'$c, $[++i] o\'$c rock,;}
f
f
f
echo We\'re gonna rock around the $c tonight.

###Unicode:

eval `iconv -t unicode<<<挊挽潬正昻⤨⁻捥潨␠⭛椫ⱝ␠⭛椫ⱝ␠⭛椫⁝屯␧Ᵽ␠⭛椫⁝屯␧⁣潲正㬬㭽㭦㭦㭦捥潨圠履爧⁥潧湮⁡潲正愠潲湵⁤桴⁥挤琠湯杩瑨ਮ|sed 1d`

###base64 encoded Unicode version (in case unicode renderings get messed up):

ZXZhbCBgaWNvbnYgLXQgdW5pY29kZTw8POaMiuaMvea9rOato+aYu+KkqOKBu+aNpea9qOKQoOKt
m+akq+KxneKQoOKtm+akq+KxneKQoOKtm+akq+KBneWxr+KQp+Kxo+KQoOKtm+akq+KBneWxr+KQ
p+KBo+a9suato+OsrOOtveOtpuOtpuOtpuaNpea9qOWcoOWxpeeIp+KBpea9p+a5ruKBoea9suat
o+aEoOa9sua5teKBpOahtOKBpeaMpOeQoOa5r+adqeeRqOCornxzZWQgMWRgCg==

#Bash+coreutils, 120 ASCII, 92 Unicode

###ASCII:

c=clock
f(){ echo $[++i], $[++i], $[++i] o\'$c, $[++i] o\'$c rock,;}
f
f
f
echo We\'re gonna rock around the $c tonight.

###Unicode:

iconv -t unicode<<<挊挽潬正昻⤨⁻捥潨␠⭛椫ⱝ␠⭛椫ⱝ␠⭛椫⁝屯␧Ᵽ␠⭛椫⁝屯␧⁣潲正㬬㭽㭦㭦㭦捥潨圠履爧⁥潧湮⁡潲正愠潲湵⁤桴⁥挤琠湯杩瑨ਮ|sed 1d|bash

###base64 encoded Unicode version (in case unicode renderings get messed up):

aWNvbnYgLXQgdW5pY29kZTw8POaMiuaMvea9rOato+aYiuKkqOKBu+aNpea9qOKQoOKtm+akq+Kx
neKQoOKtm+akq+KxneKQoOKtm+akq+KBneWxr+KQp+Kxo+KQoOKtm+akq+KBneWxr+KQp+KBo+a9
suato+OsrOCpveCppuCppuCppuaNpea9qOWcoOWxpeeIp+KBpea9p+a5ruKBoea9suato+aEoOa9
sua5teKBpOahtOKBpeaMpOeQoOa5r+adqeeRqOCornxzZWQgMWR8YmFzaAo=

#Bash+coreutils, 121 ASCII, 94 Unicode

###ASCII:

c=clock
f(){ echo $[++i], $[++i], $[++i] o\'$c, $[++i] o\'$c rock,;};
f
f
f
echo We\'re gonna rock around the $c tonight.

###Unicode:

eval `iconv -t unicode<<<挊挽潬正昻⤨⁻捥潨␠⭛椫ⱝ␠⭛椫ⱝ␠⭛椫⁝屯␧Ᵽ␠⭛椫⁝屯␧⁣潲正㬬㭽㭦㭦㭦捥潨圠履爧⁥潧湮⁡潲正愠潲湵⁤桴⁥挤琠湯杩瑨ਮ|sed 1d`

###base64 encoded Unicode version (in case unicode renderings get messed up):

ZXZhbCBgaWNvbnYgLXQgdW5pY29kZTw8POaMiuaMvea9rOato+aYu+KkqOKBu+aNpea9qOKQoOKt
m+akq+KxneKQoOKtm+akq+KxneKQoOKtm+akq+KBneWxr+KQp+Kxo+KQoOKtm+akq+KBneWxr+KQ
p+KBo+a9suato+OsrOOtveOtpuOtpuOtpuaNpea9qOWcoOWxpeeIp+KBpea9p+a5ruKBoea9suat
o+aEoOa9sua5teKBpOahtOKBpeaMpOeQoOa5r+adqeeRqOCornxzZWQgMWRgCg==

#Bash+coreutils, 120 ASCII, 94 Unicode

###ASCII:

c=clock
f(){ echo $[++i], $[++i], $[++i] o\'$c, $[++i] o\'$c rock,;}
f
f
f
echo We\'re gonna rock around the $c tonight.

###Unicode:

eval `iconv -t unicode<<<挊挽潬正昻⤨⁻捥潨␠⭛椫ⱝ␠⭛椫ⱝ␠⭛椫⁝屯␧Ᵽ␠⭛椫⁝屯␧⁣潲正㬬㭽㭦㭦㭦捥潨圠履爧⁥潧湮⁡潲正愠潲湵⁤桴⁥挤琠湯杩瑨ਮ|sed 1d`

###base64 encoded Unicode version (in case unicode renderings get messed up):

ZXZhbCBgaWNvbnYgLXQgdW5pY29kZTw8POaMiuaMvea9rOato+aYu+KkqOKBu+aNpea9qOKQoOKt
m+akq+KxneKQoOKtm+akq+KxneKQoOKtm+akq+KBneWxr+KQp+Kxo+KQoOKtm+akq+KBneWxr+KQ
p+KBo+a9suato+OsrOOtveOtpuOtpuOtpuaNpea9qOWcoOWxpeeIp+KBpea9p+a5ruKBoea9suat
o+aEoOa9sua5teKBpOahtOKBpeaMpOeQoOa5r+adqeeRqOCornxzZWQgMWRgCg==

#Bash+coreutils, 126 ASCII, 97 Unicode

###ASCII:

c=clock
for a in a b c
{
 echo $[++i], $[++i], $[++i] o\'$c, $[++i] o\'$c rock,
 }
echo We\'re gonna rock around the $c tonight.

###Unicode:

eval `iconv -t unicode<<<挊挽潬正昻牯愠椠⁡⁢㭣⁻捥潨␠⭛椫ⱝ␠⭛椫ⱝ␠⭛椫⁝屯␧Ᵽ␠⭛椫⁝屯␧⁣潲正㬬㭽捥潨圠履爧⁥潧湮⁡潲正愠潲湵⁤桴⁥挤琠湯杩瑨ਮ|sed 1d`

###base64 encoded Unicode version (in case unicode renderings get messed up):

ZXZhbCBgaWNvbnYgLXQgdW5pY29kZTw8POaMiuaMvea9rOato+aYu+eJr+aEoOakoOKBruKBoeKB
ouOto+KBu+aNpea9qOKQoOKtm+akq+KxneKQoOKtm+akq+KxneKQoOKtm+akq+KBneWxr+KQp+Kx
o+KQoOKtm+akq+KBneWxr+KQp+KBo+a9suato+OsrOOtveaNpea9qOWcoOWxpeeIp+KBpea9p+a5
ruKBoea9suato+aEoOa9sua5teKBpOahtOKBpeaMpOeQoOa5r+adqeeRqOCornxzZWQgMWRgCg==

#Bash+coreutils, 121 ASCII, 94 Unicode

###ASCII:

c=clock
f(){ echo $[++i], $[++i], $[++i] o\'$c, $[++i] o\'$c rock,;};
f
f
f
echo We\'re gonna rock around the $c tonight.

###Unicode:

eval `iconv -t unicode<<<挊挽潬正昻⤨⁻捥潨␠⭛椫ⱝ␠⭛椫ⱝ␠⭛椫⁝屯␧Ᵽ␠⭛椫⁝屯␧⁣潲正㬬㭽㭦㭦㭦捥潨圠履爧⁥潧湮⁡潲正愠潲湵⁤桴⁥挤琠湯杩瑨ਮ|sed 1d`

###base64 encoded Unicode version (in case unicode renderings get messed up):

ZXZhbCBgaWNvbnYgLXQgdW5pY29kZTw8POaMiuaMvea9rOato+aYu+KkqOKBu+aNpea9qOKQoOKt
m+akq+KxneKQoOKtm+akq+KxneKQoOKtm+akq+KBneWxr+KQp+Kxo+KQoOKtm+akq+KBneWxr+KQ
p+KBo+a9suato+OsrOOtveOtpuOtpuOtpuaNpea9qOWcoOWxpeeIp+KBpea9p+a5ruKBoea9suat
o+aEoOa9sua5teKBpOahtOKBpeaMpOeQoOa5r+adqeeRqOCornxzZWQgMWRgCg==