Running a command for each line of a text file (Bash)

问题

I am working on a program that does the following:

Reads 270 file in the folder X and calls another program to run a command with the contents of the file. For example:

$ cat X/1.txt
AAAA
BBBB
CCCC

The program is supposed to read that text (there are 270 of them) and in the loop it's supposed to do:

$python file.py AAAA; 

then

python file.py BBBB; 

then

python file.py CCCC. 

and the move on the next file like 22.txt (the files aren't numeric so a counter wouldn't be much help).

I tried the following:

function text(){
for i in $(ls Domains/);
while read line;
do
        $line
        f= done < Domains/$i.txt
        python file.py $f
}

text;

Thanks, guys!

回答1:

This is where xargs comes in handy: Concatenate all the files and pipe that into xargs which feeds each line to the python program one by one.

cat * | xargs -L1 python file.py

回答2:

This should work:

function text(){
for i in $(ls Domains/)
do
while read line;
do
python file.py $line
done < Domains/$i.txt   
done     
}

来源：https://stackoverflow.com/questions/29836900/running-a-command-for-each-line-of-a-text-file-bash