通过用下划线替换逗号和空格来更改多个文件名

Question

我的文件格式为

Country, City S1.txt

例如

USA, Los Angeles S1.txt
USA, San Francisco S3.txt
UK, Glouchester S4.txt
Argentina, Buenos Aires S7.txt

我希望将它们更改为

Country_City_S1.txt

例如

USA_Los_Angeles_S1.txt
USA_San_Franciso_S3.txt
UK_Glouchester_S4.txt
Argentina_Buenos_Aires_S7.txt

有人可以帮助我吗，最好使用mv命令吗？谢谢。

Answer 1

#!/bin/bash

for f in *.txt; do # Work on files with ".txt" extension in the current working directory assigning their names one at a time(for each loop run) to the variable "$f"
    IFS=', ' read -r -a array <<< "$f" # Split filename into parts/elements by "," and " " and read the elements into an array
    f1=$(IFS="_$IFS"; printf "${array[*]}"; IFS="${IFS:1}") # Set the new filename in the variable "$f1" by printing array elements and adding "_" inbetween.
    echo mv -n -- "$f" "$f1" # Renaming dry-run(simulation) ... Remove "echo" when satisfied with output to do the actual renaming.
done

或者

#!/bin/bash

shopt -s extglob # Turn on "extglob"

for f in *.txt; do # Work on files with ".txt" extention in the current working directory assigning their namese one at a time(for each loop run) to the fariable "$f"
    echo mv -n -- "$f" "${f//+([, ])/_}" # Renaming dry-run(simulation) ... Remove "echo" when satisfied with output to do the actual renaming.
done

Answer 2

使用 Perl 很简单rename（在此处和此处提到；不要与其他重命名混淆）：

rename 's/,? /_/g' *.txt     # Or rename 's/(, | )/_/g' *.txt

可以与-vn: --verbose(打印已成功重命名的文件的名称) 和--nono(打印要重命名的文件的名称，但不要重命名。