如何使用shell复制和重命名多个文件

Question

I want to copy only 20180721 files from Outgoing to Incoming folder. I also want to remove the first numbers from the file name and want to rename from -1 to -3 . I want to keep my commands to minimum so I am using pax command below.

Filename:

216118105741_MOM-09330-20180721_102408-1.jar

Output expected:

MOM-09330-20180721_102408-3.jar

I have tried this command and it's doing most of the work apart from removing the number coming in front of the file name. Can anyone help?

Command used:

pax -rw -pe -s/-1/-3/ ./*20180721*.jar ../Incoming/

Answer 1

You can try this

In general

for i in `ls files-to-copy-*`; do 
   cp $i `echo $i | sed "s/rename-from/rename-to/g"`; 
done;

In your case

for i in `ls *_MOM*`; do 
   cp $i `echo $i | sed "s/_MOM/MOM/g" | sed "s/-1/-3/g"`; 
done;

Answer 2

Try this simple script using just parameter expansion :

for file in *20180721*.jar; do
    new=${file#*_}
    cp -- "$file" "/path/to/destination/${new%-*}-3.jar"
done

Answer 3

pax only applies the first successful substitution even if the -s option is specified more than once. You can pipe the output to a second pax instance, though.

pax -w -s ':^[^_]*_::p' *20180721*.jar | (builtin cd ../Incoming; pax -r -s ':1[.]jar$:3.jar:p')