在bash中是否有类似的
Python zip()功能？具体来说,我正在寻找bash中的等效功能,而不使用python：
$echo "A" > test_a
$echo "B" >> test_a
$echo "1" > test_b
$echo "2" >> test_b
$python -c "print '\n'.join([' '.join([a.strip(),b.strip()]) for a,b in zip(open('test_a'),open('test_b'))])"
A 1
B 2
纯粹的bash：
liori@marvin:~$zip34() { while read word3 <&3; do read word4 <&4 ; echo $word3 $word4 ; done }
liori@marvin:~$zip34 3<a 4<b
alpha one
beta two
gamma three
delta four
epsilon five
liori@marvin:~$
(老回答)看看加入.
liori:~% cat a alpha beta gamma delta epsilon liori:~% cat b one two three four five liori:~% join =(cat -n a) =(cat -n b) 1 alpha one 2 beta two 3 gamma three 4 delta four 5 epsilon five
(假设你有=() operator like in zsh,否则会更复杂).
