Case insensitive file name search and replace files in sub-directories

jaydul · 07-22-2018, 03:43 PM

I am trying to find case insensitive file names and then replace that particular file with other name.

jaydulWeb.php
Jaydukwebsite.php
JAYDULEditionMenuitem.php

I want to change "jaydul" to "linux"
I want to change "Jaydul" to "Linux"
I want to change "JAYDUL" to "LINUX"

How it possible in linux

http://findandreplace.io/?z=codeplex

keefaz · 07-22-2018, 04:22 PM

It seems your search is case sensitive, no?

[edit] removed an irrelevant question

jaydul · 07-22-2018, 04:25 PM

It seems your search is case sensitive, no?
Files are in Linux and case sensitive.
I dont have perl script
I want use bash scripts to change files name.I dont need find and replace text

scasey · 07-22-2018, 04:32 PM

Looks like a task for the find command.
man find

and, maybe search for examples. find is very powerful, but the syntax can be daunting.

BW-userx · 07-22-2018, 05:43 PM

iname (clue clue clue)

AwesomeMachine · 07-22-2018, 08:55 PM

There's a script called 'rename' that might be handy for this.

kakistocrat · 07-22-2018, 09:36 PM

Quote:

Originally Posted by AwesomeMachine

There's a script called 'rename' that might be handy for this.

Handy, but the script does not run Rakudo (perl6) so the :samecase modifier is not available. Thus the solution is not self-evident[*]. However, all the normal perl5 expressions are still available. So assuming no spaces in the file names:

Code:

rename -v -n 's/jaydul/$_^lc($_)^"linux"/ei; tr/ //ds;' *.php

Note that one file name in the example in the OP has a "k" instead of an "l". I am expecting that to have been a typo.

rtmistler · 07-23-2018, 08:11 AM

This seems to be more of a question for the Programming forum. However before moving it, I wonder what you've tried.

You've cited some singular examples, also given a link example to a windows utility. All great.

Your follow-up post says you only want to use bash scripting.

Have you tried anything? Have you tried any of the suggestions such as replace or find?

Plenty is possible, however you have to do the work to get it done in the first place and consider if there are some ways to do the modifications easier.

Please give us insight into what you've tried.

allend · 07-23-2018, 09:26 AM

I assume the OP is happy with the 'rename' solution in post #7.
A bash solution (that requires changing 'echo' to 'mv' to be effective)

Code:

for f in [Jj][Aa][Yy][Dd][Uu][Ll]*; do g=${f/jaydul/linux}; g=${g/Jaydul/Linux}; g=${g/JAYDUL/LINUX}; echo "$f" "$g"; done

BW-userx · 07-23-2018, 10:00 AM

Code:

#!/bin/bash


while read f 
do
	#get name of file
	name=${f##*/}
	 
	#check its sub string and lowercase everything
	if [[ ${name,,}  =~ make ]] ;
	then 
		echo $name
	#if match make changes using orginal
	#path to file. 

	fi

done <<< $(find ~/ -type f -iname make*)

half baked code

MadeInGermany · 07-23-2018, 02:10 PM

The suggested perl solutions in the post#1 are too advanced for me.
I know awk better. The effort in awk is, well, not too high.

Code:

#!/bin/sh
from=jaydul
to=linux
find . -type f -iname "$from" -print |
awk -v from="$from" -v to="$to" '
  BEGIN {
    lenfrom=length(from)
    Lfrom=tolower(from)
    Ufrom=toupper(from)
    lento=length(to)
    Lto=tolower(to)
    Uto=toupper(to)
  }
  (starti=index(tolower($0),Lfrom)) > 0 {
    buf=substr($0,starti,lenfrom)
    out=""
    for (i=1; i<=lento; i++) {
      out=(out ((substr(buf,i,1) == substr(Lfrom,i,1)) ? substr(Lto,i,1) : substr(Uto,i,1)))
    }
    print "mv", $0, (substr($0,1,starti-1) out substr($0,starti+lenfrom))
  }
'

It generates the "mv" commands.
Pipe to sh in order to run them!