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A client of mine FTP'ed their files up to the server and it all ended up being in UPPERCASE when it all should be in lowercase. Is there a builtin command or a script anyone knows of that will automagically convert all files to lowercase?
Please advise asap... (4 Replies)
Hey, I've just started learning shell script today.
How would I write a bash script file that changes file names from uppercase to lowercase in that directory, the program should warn the user and NOT overwrite the existing file if it's already in lowercase?
for example in a directory i... (1 Reply)
Inside a script I have 2 variables COMP=cy and PT=t. further down the same script I require at the same line to call those 2 variables the first time uppercase and after lowercase ${COMP}${PT}ACE,${COMP}${PT}ace. Can somebody help me
Thanks in advance
George Govotsis (7 Replies)
hi,
i need to write a bash script that does two things.
the program will take from the command line a file name, which is a C code, and an integer, which is the size of my indentation
i would then have to indent every nested code by the number of columns provided by the user in the... (1 Reply)
Hello,
can sed be used to convert all letters of a file from uppercase to lowercase and vice versa?i know tr command can be used but with sed is it possible?
i came up with this :-
sed 'y///' file1
actually the above command is also not working! Please help me. Thanks in advance :) (6 Replies)
I just started to learn unix...
and i needed to make a basic script.
i need to
1. read a file (.txt)
2. count the words of EVERY sentece
3. sentences with odd number of words need to be converted into lowercase
sentences with even number of words need to be converted into uppercase
... (6 Replies)
listprocs.sh contains ps -ef | grep "swikar"
1) Write a shell script to convert an input file to all upper case. Name your shell script toupper.sh.
Hint: tr ' ' ' ' will convert all lower case letters to upper case
To use your script, try the following command:
cat... (1 Reply)
Hello,
I have a list of files in a directory whose names are all in uppercasse, including the file format for eg *.MP3 . I would like to convert these to the normal way we write it ie ABC.MP3 to be converted to Abc.mp3 . I know that this can be done manually by using a lot of "mv" or rename... (6 Replies)
Discussion started by: ajayram
6 Replies
LEARN ABOUT V7
tolower
TOUPPER(3) Linux Programmer's Manual TOUPPER(3)NAME
toupper, tolower, toupper_l, tolower_l - convert uppercase or lowercase
SYNOPSIS
#include <ctype.h>
int toupper(int c);
int tolower(int c);
int toupper_l(int c, locale_t locale);
int tolower_l(int c, locale_t locale);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
toupper_l(), tolower_l():
Since glibc 2.10:
_XOPEN_SOURCE >= 700
Before glibc 2.10:
_GNU_SOURCE
DESCRIPTION
These functions convert lowercase letters to uppercase, and vice versa.
If c is a lowercase letter, toupper() returns its uppercase equivalent, if an uppercase representation exists in the current locale. Oth-
erwise, it returns c. The toupper_l() function performs the same task, but uses the locale referred to by the locale handle locale.
If c is an uppercase letter, tolower() returns its lowercase equivalent, if a lowercase representation exists in the current locale. Oth-
erwise, it returns c. The tolower_l() function performs the same task, but uses the locale referred to by the locale handle locale.
If c is neither an unsigned char value nor EOF, the behavior of these functions is undefined.
The behavior of toupper_l() and tolower_l() is undefined if locale is the special locale object LC_GLOBAL_LOCALE (see duplocale(3)) or is
not a valid locale object handle.
RETURN VALUE
The value returned is that of the converted letter, or c if the conversion was not possible.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+-------------------------+---------------+---------+
|Interface | Attribute | Value |
+-------------------------+---------------+---------+
|toupper(), tolower(), | Thread safety | MT-Safe |
|toupper_l(), tolower_l() | | |
+-------------------------+---------------+---------+
CONFORMING TO
toupper(), tolower(): C89, C99, 4.3BSD, POSIX.1-2001, POSIX.1-2008.
toupper_l(), tolower_l(): POSIX.1-2008.
NOTES
The standards require that the argument c for these functions is either EOF or a value that is representable in the type unsigned char. If
the argument c is of type char, it must be cast to unsigned char, as in the following example:
char c;
...
res = toupper((unsigned char) c);
This is necessary because char may be the equivalent signed char, in which case a byte where the top bit is set would be sign extended when
converting to int, yielding a value that is outside the range of unsigned char.
The details of what constitutes an uppercase or lowercase letter depend on the locale. For example, the default "C" locale does not know
about umlauts, so no conversion is done for them.
In some non-English locales, there are lowercase letters with no corresponding uppercase equivalent; the German sharp s is one example.
SEE ALSO isalpha(3), newlocale(3), setlocale(3), towlower(3), towupper(3), uselocale(3), locale(7)COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
GNU 2017-09-15 TOUPPER(3)