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Top Forums Shell Programming and Scripting Trying to remove '^M' characters from a file. Post 302078422 by ShawnMilo on Friday 30th of June 2006 10:17:45 AM
Old 06-30-2006
Hope this helps.

I had a big issue with this while trying to get a flat file into Oracle. I tried using vi and sed, and ultimately came upon a solution using strings and tr.

Here is my shell script:

#make a backup
cp $1 $1.orig

#Strip out nulls.
tr -d ‘\0′ < $1.orig > $1.temp

#Strip out other unprintable characters
strings $1.temp > $1

#Remove temp file.
rm $1.temp

#Fix permissions. (You may not need this for your application)
chmod 744 $1
 

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ustrtok(3alleg4)						  Allegro manual						  ustrtok(3alleg4)

NAME
ustrtok - Retrieves tokens from a string. Allegro game programming library. SYNOPSIS
#include <allegro.h> char *ustrtok(char *s, const char *set); DESCRIPTION
This function retrieves tokens from `s' which are delimited by characters from `set'. To initiate the search, pass the string to be searched as `s'. For the remaining tokens, pass NULL instead. Warning: Since ustrtok alters the string it is parsing, you should always copy the string to a temporary buffer before parsing it. Also, this function is not re-entrant (ie. you cannot parse two strings at the same time). Example: char *word; char string[]="some-words with dashes"; char *temp = ustrdup(string); word = ustrtok(temp, " -"); while (word) { allegro_message("Found `%s' ", word); word = ustrtok(NULL, " -"); } free(temp); RETURN VALUE
Returns a pointer to the token, or NULL if no more are found. SEE ALSO
uconvert(3alleg4), ustrchr(3alleg4), ustrrchr(3alleg4), ustrstr(3alleg4), ustrpbrk(3alleg4), ustrtok_r(3alleg4), allegro_message(3alleg4), ustrncpy(3alleg4), exgui(3alleg4) Allegro version 4.4.2 ustrtok(3alleg4)
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