From: Jean-François Blanchet (Jfblanchet@dgeq.qc.ca)
Date: Mon Mar 31 2003 - 14:11:22 EST
My question:
I want to find and replace ascii character 00 by blank in file.
I have 125 files to do.
Can you give me a solution with unix utilities?
Solutions:
A lot of good responses,
but I have use this one:
perl -pi -e 's/\x00/ /g;' filename
Using wildcards in the filename is valid, too.
------------------------------------------------------------------
for i in <filelist>; do tr "\0" " " <$i >$i.nonul; cp $i.nonul $i; rm -f
$i.nonul; done;
------------------------------------------------------------------
foreach x (*)
echo $x
cat $x | tr '\000' ' ' > ${x}.NEW
mv $x.NEW $x
end
------------------------------------------------------------------
/*
chnulltoblank.c
P. Farrell, Jan 15, 2003
Program to read std input, translate all null characters
(\000) to blanks, and write to standard output.
Compile with:
cc -o chnulltoblank chnulltoblank.c
Use like this:
chnulltoblank < inputfile > outputfile
*/
#include <stdio.h>
main()
{
char ch = '\0';
char null = '\0';
char blank = ' ';
while((ch = getc(stdin)) != EOF) {
if( ch != null )
putc(ch,stdout);
else
putc(blank,stdout);
} /* end of read loop */
fclose(stdout); /* so next program in pipe sees EOF properly */
}
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