a***u
发帖数: 14 | 1 我想把(cat filename | grep "^...")的东东赋值给i，再判断i是否有东西，该怎么做呀
？ | p******f
发帖数: 162 | 2
i='grep "..." filename'
if test -n $i; then
...
fi
NOTE: the tick in the first line should be back-tick,
which i can't input, because it is defined as BOSS KEY by sterm.
【在 a***u 的大作中提到】
: 我想把(cat filename | grep "^...")的东东赋值给i，再判断i是否有东西，该怎么做呀
: ？
| f***y
发帖数: 98 | 3 if i=`grep "^..." filename`; then ... should be fine.
【在 p******f 的大作中提到】
:
: i='grep "..." filename'
: if test -n $i; then
: ...
: fi
: NOTE: the tick in the first line should be back-tick,
: which i can't input, because it is defined as BOSS KEY by sterm.
|
|
