How to drop some string in every filename

Question

[root@localhost ~]# ls *.bak

test2.bak test3.bak test9.bak test.bak test.txt.bak

How to drop all .bak in all file?This is my current try

ls *.bak|xargs -t -i mv {}.bak {}

But it don't work for me.Is there any workaround here?

score 2 · Answer 1 · edited Jun 23 '17 at 14:36

2

A loop should do (in a POSIX-like shell):

for f in *.bak; do 
    mv -- "$f" "${f%.*}"
done

And as one line:

for f in *.bak; do mv -- "$f" "${f%.*}"; done

edited Jun 23 '17 at 14:36

answered Jun 23 '17 at 14:03

score 1 · Accepted Answer · answered Jun 23 '17 at 13:44

1

Use rename command:

rename 's/\.bak$//' *.bak

's/\.bak$//' - perl expression to match all filenames ending with .bak and strip the extension

answered Jun 23 '17 at 13:44

RomanPerekhrest

I don't know why it don't work for me. – yode Jun 23 '17 at 14:11
@yode, try prename 's/\.bak$//' *.bak (Perl version) – RomanPerekhrest Jun 23 '17 at 14:17
It's seem rename .bak '' *.bak work for this.. – yode Jun 23 '17 at 14:23
it seems that you are using another implementation, see this post https://unix.stackexchange.com/questions/78621/find-rename-command-doesnt-work – RomanPerekhrest Jun 23 '17 at 14:25

score 0 · Answer 3 · answered Jun 23 '17 at 13:50

0

Something that should work across all platforms:

for i in *.bak
do
  mv $i `echo $i | sed 's/\.bak$//'`
done

answered Jun 23 '17 at 13:50

unxnut

You need quotes around $i and the command substitution to deal with whitespace in filenames. (Some newlines would still cause somewhat odd results.) – ilkkachu Jun 23 '17 at 15:23

score 0 · Answer 4 · answered Jun 23 '17 at 14:31

0

As the promp of RomanPerekhrest's answer here,I find this command work for me.

rename .bak '' *.bak

answered Jun 23 '17 at 14:31

yode

Note that it would rename best.baker.bak to bester.bak and would choke on file names that start with -. – Stéphane Chazelas Jun 23 '17 at 14:35

score -1 · Answer 5 · edited Jun 23 '17 at 16:05

-1

#!/bin/bash
for val in \`ls *.bat`
do
    mv $val `echo $val | cut -f1 -d'.'`
done

edited Jun 23 '17 at 16:05

Jeff Schaller

answered Jun 23 '17 at 14:16

lei wang

That makes a lot of assumptions, like that none of the bat files are of type directory, that their names don't contain space, tab, newline, *, ?, [ backslash characters, that they don't start with -, that they contain no other . characters. – Stéphane Chazelas Jun 23 '17 at 14:39
The ls here doesn't do anything (but cause issues), the shell still generates the list of file names. See also: http://mywiki.wooledge.org/BashPitfalls#for_i_in_.24.28ls_.2A.mp3.29 – ilkkachu Jun 23 '17 at 15:25

5 Answers5