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awk-es script start

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hugo 2017-07-15 01:16:11 -07:00
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@ -23,26 +23,27 @@ delimitadores, probablemente AWK es la herramienta correcta para el trabajo.
```awk ```awk
#!/usr/bin/awk -f #!/usr/bin/awk -f
# Comments are like this # Los comentarios tienen este aspecto.
# Los programas AWK son una colección de patrones y acciones. El patrón más
# importante es BEGIN. Las acciones van en bloques delimitados por llaves.
# AWK programs consist of a collection of patterns and actions. The most
# important pattern is called BEGIN. Actions go into brace blocks.
BEGIN { BEGIN {
# BEGIN will run at the beginning of the program. It's where you put all # BEGIN correrá al inicio del programa. Es donde pones todo el código
# the preliminary set-up code, before you process any text files. If you # preliminar antes de procesar los archivos de texto. Si no tienes archivos
# have no text files, then think of BEGIN as the main entry point. # de texto, piensa en BEGIN como el punto de entrada principal del script.
# Variables are global. Just set them or use them, no need to declare.. # Las variables son globales. Asígnalas o úsalas sin declararlas.
count = 0 count = 0
# Operators just like in C and friends # Los operadores son justo como en C (y amigos).
a = count + 1 a = count + 1
b = count - 1 b = count - 1
c = count * 1 c = count * 1
d = count / 1 d = count / 1
e = count % 1 # modulus e = count % 1 # módulo
f = count ^ 1 # exponentiation f = count ^ 1 # exponenciación
a += 1 a += 1
b -= 1 b -= 1
@ -51,36 +52,36 @@ BEGIN {
e %= 1 e %= 1
f ^= 1 f ^= 1
# Incrementing and decrementing by one # Incremento y decremento en uno
a++ a++
b-- b--
# As a prefix operator, it returns the incremented value # Como un operador prefijo, regresa el valor modificado
++a ++a
--b --b
# Notice, also, no punctuation such as semicolons to terminate statements # Nota que no hay puntación para terminar las instrucciones
# Control statements # Instrucciones de control
if (count == 0) if (count == 0)
print "Starting with count of 0" print "Iniciando count en 0"
else else
print "Huh?" print "Eh?"
# Or you could use the ternary operator # O puedes usar el operador ternario
print (count == 0) ? "Starting with count of 0" : "Huh?" print (count == 0) ? "Iniciando count en 0" : "Eh?"
# Blocks consisting of multiple lines use braces # Bloques formados por múltiples líneas usan llaves
while (a < 10) { while (a < 10) {
print "String concatenation is done" " with a series" " of" print "La concatenación de strings se hace " " con series " " de"
" space-separated strings" " strings separados por espacios"
print a print a
a++ a++
} }
for (i = 0; i < 10; i++) for (i = 0; i < 10; i++)
print "Good ol' for loop" print "El viejo confiable ciclo for"
# As for comparisons, they're the standards: # As for comparisons, they're the standards:
a < b # Less than a < b # Less than