Some system utilities

nvidia-load-settings.sh

#!/bin/sh
# Workaround bug where nvidia-settings --load-config-only
# does not actually load any attributes.
#
# It might be related to values that have decimals such as
# RedBrightness=1.000000
# nvidia-settings will complain about (Trailing garbage), unless ran as root..
#
# However, running as root isn't really a nice thing, so this script just assign everything
# It will still give you complaints about (Trailing garbage), but at least other settings get applied.
#
# This will work as long the configuration file's attributes are in format
# HOSTNAME:DISPLAY/attribute=value
# eg. LINUX:0.0/CursorShadow=0
#
# or
#
# DISPLAY/attribute=value
# eg. 0/CursorShadow=0
#
# If nvidia ever changes their configuration, this script will break obviously :)

# Path to nvidia-settings configuration file
# or custom configuration
NVIDIA_SETTINGS_FILE="$HOME/.nvidia-settings-rc"

# Nvidia-settings utility
NVIDIA_SETTINGS_BINARY="nvidia-settings"

for value in $(egrep -v '^(#|$)' "$NVIDIA_SETTINGS_FILE" | grep '[0-9]/.*=');
do
   value="$(echo "$value" | sed "s/$HOSTNAME//")"
   "$NVIDIA_SETTINGS_BINARY" -a "$value"
done

strlen_utf8.c

#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <string.h>

/* TODO: read pipe? */

int main(int argc, char *argv[])
{
   size_t i = 0, j = 0;
   char s[LINE_MAX];
   memset(s, 0, LINE_MAX);

   /* join all strings */
   i = 1; /* skip program, program */
   for (; i != argc; ++i)
   {
      if (i != 1) strncat(s, " ",     LINE_MAX);
      strncat(s, argv[i], LINE_MAX);
   }

   /* count characters */
   i = 0;
   while (s[i]) {
      if ((s[i] & 0xc0) != 0x80) j++;
      i++;
   }

   /* print count */
   printf("%llu\n", j);
   return EXIT_SUCCESS;
}

strtrim_utf8.c

#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <string.h>

/* TODO: read pipe? */

int main(int argc, char *argv[])
{
   size_t i = 0, j = 0;
   size_t trim = 0;
   char s[LINE_MAX];

   /* fail if no arguments */
   if (argc < 3)
   {
      printf("usage: %s [string] [trim pos]\n", argv[0]);
      return EXIT_SUCCESS;
   }

   /* get trim place */
   trim = strtol(argv[2], (char **) NULL, 10);

   /* count characters */
   i = 0;
   while (argv[1] && j != trim && i != LINE_MAX) {
      if ((argv[1][i] & 0xc0) != 0x80) j++;
      s[i] = argv[1][i];
      i++;
   }
   if ((argv[1][i] & 0xc0) != 0x80)
   {
      /* ended on non multibyte */
   }
   else
   {
      /* ended at multibyte */
      s[i] = argv[1][i]; ++i;
      s[i] = argv[1][i]; ++i;
   }
   s[i] = '\0';

   /* print count */
   printf("%s\n", s);
   return EXIT_SUCCESS;
}