我正在使用BASH,但我不知道如何查找子字符串。它一直失败,我有一个字符串(应该是数组吗?)
下面LIST是数据库名称的字符串列表,SOURCE是答复(这些数据库之一)。以下内容仍然无效:
LIST
SOURCE
echo "******************************************************************" echo "* DB2 Offline Backup Script *" echo "******************************************************************" echo "What's the name of of the database you would like to backup?" echo "It will be named one in this list:" echo "" LIST=`db2 list database directory | grep "Database alias" | awk '{print $4}'` echo $LIST echo "" echo "******************************************************************" echo -n ">>> " read -e SOURCE if expr match "$LIST" "$SOURCE"; then echo "match" exit -1 else echo "no match" fi exit -1
我也尝试过此方法,但不起作用:
if [ `expr match "$LIST" '$SOURCE'` ]; then
LIST=”some string with a substring you want to match” SOURCE=”substring” if echo “$LIST” | grep -q “$SOURCE”; then echo “matched”; else echo “no match”; fi