你好,我在 while 循环中遇到以下问题,它没有读取最后一行。
while IFS= read -r line
do
echo $line
done<file_ref_col_master.txt
输入文件
FILE_ID~col_POS~COL_START_POS~COL_END_POS~datatype~delimitted_ind~col_format~columnlength
5~4~~~char~Y~\"[a-z][email protected]\"~100
5~1~~~char~Y~[0-9]+~100
电流输出
sh -x sample1.sh
+ dos2unix /test/data/infa_shared/dev/SrcFiles/datawarehouse/poc_anjali/file_ref_col_master.txt
dos2unix: converting file /test/data/infa_shared/dev/SrcFiles/datawarehouse/poc_anjali/file_ref_col_master.txt to Unix format ...
+ n=0
+ IFS=
+ read -r line
+ echo FILE_ID~col_POS~COL_START_POS~COL_END_POS~datatype~delimitted_ind~col_format~columnlength
FILE_ID~col_POS~COL_START_POS~COL_END_POS~datatype~delimitted_ind~col_format~columnlength
+ IFS=
+ read -r line
+ echo '5~4~~~char~Y~\"[a-z][email protected]\"~100'
5~4~~~char~Y~\"[a-z][email protected]\"~100
+ IFS=
+ read -r line
答案1
文件的最后一行不以换行符结尾。
解决这个问题
printf "\n" >>file_ref_col_master.txt