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実行ファイルとスクリプト間の引数渡しの実験
// argtest.c
// 実行ファイルとスクリプト間の引数渡しの実験
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main(int argc, char *argv[])
{
if (argc < 2) {
printf("%s: no input [OPTION]...\n", argv[0]);
exit(EXIT_FAILURE);
}
switch (*argv[1]) {
case 's':
printf("%s argc=%d argv=\n", argv[0], argc);
for (int i = 0; i < argc; i++) {
printf("\targv[%d]=%s\n", i, argv[i]);
}
break;
case 'e':
if (argc < 3) {
printf("%s: no input [OPTION] [COMMAND]...\n", argv[0]);
exit(EXIT_FAILURE);
}
char cmd[254];
memset(cmd, 0, sizeof(cmd));
strncat(cmd, argv[2], strlen(argv[2]));
for (int i = 3; i < argc; i++) {
strncat(cmd, " \"", 2);
strncat(cmd, argv[i], strlen(argv[i]));
strncat(cmd, "\"", 1);
}
printf("cmd=%s\n", cmd);
system(cmd);
break;
default:
printf("%s: 認識できないオプション\'%s\'です", argv[0], argv[1]);
printf("option:\n\ts\tshow argv\n\te\texecute argtest\n");
break;
}
exit(EXIT_SUCCESS);
}
# Makefile
argtest: argtest.c
g++ -o argtest argtest.c
clean:
rm -f argtest
# script.sh
#!/bin/sh
echo "$0"
echo " \$0=$0"
echo " \$1=$1"
echo " \$2=$2"
echo " \$3=$3"
echo " \$4=$4"
echo " \$5=$5"
if [ "$2" = "end" ]; then
exit 0
fi
./argtest $1 $2 $3 $4
./argtest "$1" "$2" "$3" "$4"
./script.sh s end $2 $3 $4
./script.sh s "end" "$2" "$3" "$4"
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