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Shell Programming and Scripting
Replace the first letter of each line by a capital
Post 302952823 by Aia on Saturday 22nd of August 2015 12:38:18 PM
08-22-2015
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:confused:
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Good afternoon all,
I want to ask how to change some letter in my file with other letter in spesific line
eg.
data.txt
1
1
1
0
0
0
0
for example i want to change the 4th line with character 1.
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LEARN ABOUT OSX
towlower
TOWLOWER(3) BSD Library Functions Manual TOWLOWER(3) NAME
towlower, towlower_l -- upper case to lower case letter conversion (wide character version) LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <wctype.h> wint_t towlower(wint_t wc); #include <wctype.h> #include <xlocale.h> wint_t towlower_l(wint_t wc, locale_t loc); DESCRIPTION
The towlower() function converts an upper-case letter to the corresponding lower-case letter. Although the towlower() function uses the current locale, the towlower_l() function may be passed a locale directly. See xlocale(3) for more information. RETURN VALUES
If the argument is an upper-case letter, the towlower() function returns the corresponding lower-case letter if there is one; otherwise, the argument is returned unchanged. SEE ALSO
iswlower(3), tolower(3), towupper(3), wctrans(3), xlocale(3) STANDARDS
The towlower() function conforms to ISO/IEC 9899:1999 (``ISO C99''). BSD
October 3, 2002 BSD