Create tables in batches using shell scripts

Shell script batch table creation 1. I often use shell scripts to batch create tables, count .... whiledo [sqlstat] done, etc. during createtableselect * fromxxxxwhere12, do you have the id not automatically set up pri... shell script batch table creation 1. I often use shell scripts to batch create tables, count .... while do [SQL stat] done and so on, when create table select * from xxxx where 1 = 2, have you been attacked by the primary key index of primary key auto_increment that your id has not automatically created. 2. have you ever written function (){...} I have received parameters in the function. Have you ever written $ data = "xxx"? but in the result, you want your function to receive a parameter, but you passed the parameter fun $ data =_^. haha, in fact, the effect is like this. fun xxx, haha, I just tried it. so, you should write fun "$ data" 3. for file in 'ls | grep ^ this '. you must have used it. do you want to cd it to a directory before this command, so, when you echo $ file, will it bring the directory information? are you sure you want to say that? I got stuck. this is my code. [Plain] function load_game_data2_dbs () {file = $1 echo_log "$ file importing database ".....} [Plain] for file in 'ls | grep ^ attemp 'do echo_log "has entered the final loop, prepare to export the package "# distribute the file to the raw data on the four databases, on behalf of the auto table load_game_data2_dbs "$ Directory/$ file" echo_log ", The Data $ Directory/$ file has been imported into four databases, prepare the file to complete the initial state \ n "# import the package completion mark position on the four databases to the initial state ...... In [plain] load_game_data2_dbs, done prints $ Directory/$ file. Then, echo_log also prints $ Directory/$ file. guess what the two outputs are? I got pitted, but later I learned how to get pitted. in the load_game_data2_dbs function, you need to add the loacl keyword to the file variable. this is completely different from other languages you have learned.