Questions tagged [case-sensitivity]
The case-sensitivity tag has no usage guidance.
3
votes
2answers
57 views
Using regular expressions in “less”
I'm trying to use a regular expression in the man page of Bash by using less.
I press / in less to enter a pattern, and I type z and press the Enter. I expected it to not match upper-case z (Z), but ...
0
votes
1answer
44 views
Does sort -u convert case?
If I have a file with some words starting with Capital letters and some starts with Small letters and some start with numbers or special characters. Does using sort -u input > output convert the ...
0
votes
1answer
202 views
Ignore case in Find command
I want to search file in 2 different directories using find command,
find $file_dir1 $file_dir2 -name 'searchpattern*' | tail -10
I am using this command now, but it is case-sensitive search.
I ...
0
votes
2answers
254 views
case insensitive, list files in directory, ending in .jpg [duplicate]
I'm trying to write an alias to list all the files in a directory ending in JP(E)G in its various forms. The ones I'm looking for it to recognise are .jpg .JPG .jpeg and .JPEG.
Is there a form of ls (...
1
vote
2answers
417 views
Is it possible to disable ext4 case sensitivity?
With NTFS you can enable or disable case sensitivity. Is there a way to do it with ext4 in Linux?
-1
votes
1answer
54 views
Create a folder with all possible combinations of characters and numbers [closed]
I want to create a folder like "example.txt, example.Txt, example.TxT... all possible combinations.
0
votes
0answers
47 views
case-preserving linux usernames and hostnames
Is there a way to set pam library to do case-preserving username validation? Is there a way to set useradd command to accept and preserve the case of usernames? I know usernames and URLs are not OS ...
-1
votes
1answer
51 views
Format disk as HFS+, but case sensitive?
Linux can format an (external) disk as HFS+, e.g.:
apt-get install gparted hfsprogs, then
gparted /dev/sdd, rightclick on the partition to format, choose HFS+, click Apply, quit; mount -t hfsplus /dev/...
0
votes
2answers
322 views
Case insensitive directory search?
I am working on restructuring the folder structure of few existing folders.
So if there are any folders missed i will have to add it.
First am checking if the directory exists or not with if ...
1
vote
2answers
1k views
Move files that have the same case-insensitive filename
I have been asked by the data owner to copy a specific folder (and its large amount of subfolders and files) via FTPS to our cloud storage provider. I am using LFTP for that, and the upload worked ...
4
votes
2answers
4k views
bash - case-insensitive matching of variable
This syntax prints "linux" when variable equals "no":
[[ $LINUX_CONF = no ]] && echo "linux"
How would I use regular expressions (or similar) in order to make the comparison case ...
0
votes
6answers
6k views
Using wildcard in 'ls' command to find files containing uppercase letters only
So I've been playing around with filesystem and wondered about listing the files in /etc that contains only upper-case letters in their names. I commanded
ls *[A-Z]*
But the console shows the files ...
5
votes
1answer
692 views
Does the UNIX standard require case-sensitive filesystems?
One answer to this question mentions the UNIX 03 certification of OSX. Now AFAIK the standard file system of OSX is/was HFS, which "saves the case of a file that is created or renamed but is case-...
4
votes
2answers
268 views
Are keywords in resolv.conf case sensitive?
Looking around I have found out the following about /etc/resolv.conf valid formatting:
Trailing whitespace is allowed
Leading whitespace is NOT allowed
DNS records are case insensitive, though you ...
3
votes
1answer
826 views
How to copy with scp a file that case is unknown via bash script
I have a directory that contains the backup of many computers using NTFS file system.
/backup/REP1/database
/backup/REP2/database
I now want to scp from the backup file server to the database server,...
3
votes
1answer
2k views
Broken pipe when grepping output, but only with -i flag
I'm trying to see if a certain python-library is installed by grepping the output of pip list. If I try this
pip list | grep -q $package, it works fine. If I try pip list | grep -qi $package, I get ...
0
votes
2answers
595 views
yum case (in)sensitive
As far as I know, yum list is case insensitive, while yum install and yum remove are case sensitive -- probably as a security feature to prevent unintended system changes.
Is there a way to change ...
2
votes
1answer
880 views
bash case-insensitive commands matching
Is it possible for bash to find commands in a case-insensitive way?
eg. these command lines will always run python:
python
Python
PYTHON
pyThoN
1
vote
2answers
65 views
OS X filesystem case insensitivity corrupts vlc command
vlc -I rc from OS X Terminal bash prompt returns error:
VLC media player 2.2.3 Weatherwax (revision 2.2.3-3-g0777f11)
[0000000100233778] core libvlc error: No plugins found! Check your VLC ...
2
votes
1answer
740 views
How do I view the case-sensitive file names of iso9660/Joliet+UCS-3 volumes?
I have an ISO that I am trying to use to install software via Wine. I have the ISO mounted as a loopback device. The Windows installer keeps complaining that it cannot locate particular CAB files and ...
2
votes
3answers
3k views
delete line that contains a case insensitive match
I have a file that contains information as so:
20 BaDDOg
31 baddog
42 badCAT
43 goodDoG
44 GOODcAT
and I want to delete all lines that contain the word dog. This is my desired output:
...
0
votes
1answer
747 views
sort and uniq commands not running as expected when run though cron
Below is a part of script which gives proper output when run manually
but gives incorrect output when run using cron:
sort < file1.out | uniq -ic |sort -nr> file2.out
When run on the command ...
0
votes
2answers
42 views
Surround a pattern, not changing it, while searching for it case-insensitively
Sorry if this has been asked before, but I haven't found anything so far.
Here's the thing: I have a string and a pattern, and want to surround the pattern inside the string with brackets.
While I ...
17
votes
5answers
15k views
Is the username in Unix case sensitive?
Is ssh abc@servername different from ssh Abc@servername? Does the case of the username matter in Unix?
My user authenticates via LDAP.
4
votes
2answers
560 views
bash - ignore case but disallow autocomplete if ambiguous
Recently i face inconvenient when using bash auto complete with ignore case.
Let's say i have this directories:
[xiaobai@xiaobai test]$ l
total 20K
3407873 drwx------. 60 xiaobai xiaobai 4.0K May 25 ...
12
votes
1answer
2k views
How do case-insensitive filesystems display both upper and lower case file names?
This question occurred to me the other day when I was working on a development project that relies on an opinionated framework with regard to file names. The framework (irrelevant here) wanted to see ...
1
vote
1answer
686 views
Batch rename “case duplicates”
I have a folder on my Linux system that is cross-synchronized with other computers, some of them with Windows. The problem is that in that folder there are files that are "case duplicates", i.e. their ...
3
votes
2answers
2k views
Finding duplicate files by name ignoring the case in subdirectories
How is it possible to list duplicate file names on a Linux system
ignoring the case
including all subdirectories
Files should not be compared by their content but only by their names.
The output ...
33
votes
1answer
2k views
Why can Shell builtins not be run with capital letters but other commands can?
Why is this?
When I do this
CD ~/Desktop
It doesn't take me to the Desktop. But this:
echo "foo
bar" | GREP bar
gives me:
bar
10
votes
3answers
680 views
Can I force `man` to do lower case sensitive matching?
When I search man pages, the search is case sensitive, but only with regard to upper case letters. E.g., x will match x and X whereas X only matches x. This is the man-db version of man, used on ...
1
vote
1answer
123 views
Paradox about a-z vs A-Z
I wrote a shell script to recognize the type of character
printf "Enter a character: "
read var
case "$var" in
[a-z])
echo "You entered a lower case alphabet."
;;
[A-Z])
echo "...
3
votes
4answers
2k views
How to prepare files for rsync on a case insensitive filesystem?
I am transferring a large number of files on a HFS+ filesystem.
The files are currently on ext2 partitions.
I have conflicts due to case insensitivity of the target partition (HFS+).
I want to ...
8
votes
1answer
6k views
grep: Ignoring GREP_OPTIONS to search case-sensitive
I have set GREP_OPTIONS="--ignore-case --color" in ~/.bashrc as I normally want grep to work case-insensitive. However, there are times when I need grep to actually search case-sensitive, but the man ...
1
vote
2answers
411 views
`echo -e 'Q\ns\nV' | sort` doesn't sort
Why do :
$ echo -e 'Q\ns\nV' | sort
outputs
Q
s
V
without changing the order of my list (taking in account the lower/uppercase ?)
106
votes
5answers
186k views
How to uppercase the command line argument?
I searched SO and found that to uppercase a string following would work
str="Some string"
echo ${str^^}
But I tried to do a similar thing on a command-line argument, which gave me the following ...
56
votes
7answers
69k views
How to match case insensitive patterns with ls?
I would like to list all files matching a certain pattern while ignoring the case.
For example, I run the following commands:
ls *abc*
I want to see all the files that have "abc" as a part of the ...
9
votes
4answers
7k views
Case-insensitive file system for production server?
The initial situation looks like this:
The corporate software is PHP-based.
It is delivered by Apache 2 on a Windows 2003 Server.
It is big.
It is a legacy of rather unprofessional developers who did ...
10
votes
2answers
2k views
Case-preserving search and replace in vim?
In vim, I know I can search with or without case sensitivity. But if I want to search for a string in either upper or lower case, and replace it with a replacement of the same case, is that possible ...
17
votes
6answers
11k views
case-insensitive search of duplicate file-names
I there a way to find all files in a directory with duplicate filenames, regardless of the casing (upper-case and/or lower-case)?
11
votes
4answers
9k views
change entire directory tree to lower-case names
I'm working on a website conversion. The files as they were linked and served from the web server were case insensitive. But, I've made a dump of the site on my linux system and I'm writing scripts to ...
