non riesco a far funzionare awk in quel modo...
mi dice sempre
awk /full/ '{ print $4 }' /proc/acpi/battery/BAT1/info
awk: cmd. line:1: fatal: cannot open file `{ print $4 }' for reading (No such file or directory)
allora ho provato ad invertire '{print $4]' con il file e mi dice
awk /full/ /proc/acpi/battery/BAT1/info '{ print $4 }'
last full capacity: 3936 mAh
awk: (FILENAME=/proc/acpi/battery/BAT1/info FNR=13) fatal: cannot open file `{ print $4 }' for reading (No such file or directory)
se elimino il `{ print $4 }' mi stampa tutta la stringa....

ho provato anche con
awk /full/ /proc/acpi/battery/BAT1/info `{ print $4 }`
bash: command substitution: line 2: syntax error: unexpected end of file
last full capacity: 3936 mAh
ma niente....

altre idee??

Grazie!