shell将字符串转换为大写变量并将小写作为变量值

Posted 2020-09-29 jackchen007

 

group_name=‘a b c d e f g‘
 for a in $group_name; do typeset  -u a ; echo "$a=‘$(echo $a | tr ‘[A-Z]‘ ‘[a-z]‘)‘";done
执行结果：
A=‘a‘
B=‘b‘
C=‘c‘
D=‘d‘
E=‘e‘
F=‘f‘
G=‘g‘