Linux Bash ottenere la somma di numeri interi da file linea per linea
Due righe di codice bash per sommare insieme piu’ numeri all’interno di un file.
Prendiamo un file del tipo:
3443535
9878977
67554
987798
232324
Come ottenere la somma totale di tutte le linee? Niente di piu’ semplice:
#!/bin/bash
if [ -z $1 ]; then
echo “Usage: $0 <file>”
exit 1
fi
sum=`(sed ‘s/^/x+=/’ $1; echo x) | bc`
echo $sum
Tags: bash, code, coding, count, debian, file, integers, lines, linux, numbers, programming, sum, sysadmin, ubuntu
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12:30 on August 11th, 2011
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15:03 on November 22nd, 2010
ok ma se io volessi sommare 000001 + 000002 e avere come risultato 000003 come faccio ?? ? :(
22:42 on December 23rd, 2007
Thanks. Very interesting post
23:54 on November 30th, 2007
interessante, più che altro da integrare con altro, tipo output di altri programmi (come un ‘grep ^ -c *’)
16:59 on November 30th, 2007
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