TOUPPER(3) Linux Programmer's Manual TOUPPER(3)NAME
toupper, tolower - convert letter to upper or lower case
SYNOPSIS
#include <ctype.h>
int toupper(int c);
int tolower(int c);
DESCRIPTION
toupper() converts the letter c to upper case, if possible.
tolower() converts the letter c to lower case, if possible.
If c is not an unsigned char value, or EOF, the behaviour of these functions is undefined.
RETURN VALUE
The value returned is that of the converted letter, or c if the conversion was not possible.
CONFORMING TO
ANSI C, BSD 4.3
BUGS
The details of what constitutes an uppercase or lowercase letter depend on the current 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), setlocale(3), locale(7)GNU 1993-04-04 TOUPPER(3)
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TOUPPER(3) Linux Programmer's Manual TOUPPER(3)NAME
toupper, tolower - convert letter to upper or lower case
SYNOPSIS
#include <ctype.h>
int toupper(int c);
int tolower(int c);
DESCRIPTION
toupper() converts the letter c to upper case, if possible.
tolower() converts the letter c to lower case, if possible.
If c is not an unsigned char value, or EOF, the behavior of these functions is undefined.
RETURN VALUE
The value returned is that of the converted letter, or c if the conversion was not possible.
CONFORMING TO
C89, C99, 4.3BSD.
BUGS
The details of what constitutes an uppercase or lowercase letter depend on the current 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), setlocale(3), towlower(3), towupper(3), locale(7)COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU 1993-04-04 TOUPPER(3)
hello everyone....
script is: To convert the contents of a database file into uppercase
my code is:
printf "%s\n" , $2 | awk '{print toupper($2)}' emp.lst
i m able to do only for one field.....didn't get any sources for handling multiple fields.
please suggest me for multiple... (1 Reply)
Hi All,
I am seeing an issue while using toupper in nawk. Below is the code that I am using.Toupper method is not working as expected in this case.nawk 'NR==FNR{a=$4" "$5}NR>FNR{print NF?$0:a"\n";if(/^cn:/) x=toupper($0)}' FS="" id_list.txt attributes.txt > out
In the above script, id_list... (9 Replies)
Hi
I would like to read if the first letter of a line in a first file (gauche.txt) is uppercase or lowercase, and change consequently the first letter of the corresponding line in the second file (droiteInit.txt).
I have done this but it won't work (I launch this using gawk -f... (16 Replies)
Hi,
I am learning awk and faced few queries. Kindly suggest on the same. Where it is wrong.
$ awk '{if (toupper($1) ~ /a/) print $0}' inv
$ awk '{if (toupper($1) ~ /A/) print $0}' inv -- Why this output
Jan 13 25 15 115
Mar 15 24 34 228
Apr 31 52 63 420
May 16 34 29 208... (6 Replies)