したがって、ユーザーがbash copy.sh copysource.txt copydest.txtと入力し、ファイルが有効な場合は、copysourceをcopydestに追加してからcatを介してファイルを表示したいと思います。
- ファイル名が正しくないか見つからない場合... ユーザーに以下のコードを入力するように求めるメッセージを表示したいと思います。
#!/bin/bash
#Date: July 14 2016
if [ "$1" == "copysource.txt" ] && [ "$2" == "copydest.txt ]; then
cp $1 $2
echo "copies $1 to $2"
echo "contents of $2 are: "
cat $2
fi
#if the above was correct I want to script to stop
#otherwise if the info above was incorrect re: file names I want to user to be
#prompted to below code
clear
echo -n "Enter the source file name: "
read sourc
if [ "$sourc" == "copysource.txt" ]; then
echo "The file name you entered was found!";
else
echo "The file name you entered was invalid - please try again";
echo -n "Enter the source file name: "
read sourc
fi
echo -n "Enter the destination file name: "
read dest
if [ "$dest" == "copydest.txt" ]; then
echo "The destination file name you entered was found!";
else
echo "The destination file name you entered was invalid - please try again";
echo -n "Enter the destination file name: "
read dest
fi
cp $sourc $dest
echo "copies $sourc to $dest"
echo "contents of $dest are: "
cat $dest
答え1
以下のコードは、2つのファイル（$ 1と$ 2に渡される）が存在することを確認し、$ 1を$ 2にリンクします（これはあなたが望むものだと思います）。ファイルのいずれかがまだ存在しない場合は、既存のファイルが入力されるまで、ソースファイルとターゲットファイル名を順番に入力するように求められます。それ以外の場合は、終了するにはCtrl-Cを押します。
#!/bin/bash
#Date: July 14 2016
# Use -f to test if files exist
if [[ -f "$1" ]] && [[ -f "$2" ]]; then
echo "Appending contents of $1 to $2"
# Use cat to take the contents of one file and append it to another
cat "$1" >> "$2"
echo "Contents of $2 are: "
cat "$2"
# Don't want to go any further so exit.
exit
fi
# You could consider merging the logic above with that below
# so that you don't re-test both files if one of them exists, but the
# following will work.
clear
sourc=''
dest=''
while [[ ! -f "$sourc" ]]
do
echo -n "Enter the source file name: "
read sourc
if [ -f "$sourc" ]; then
echo "The file name you entered was found!";
else
echo "The file name you entered was invalid - please try again";
fi
done
while [[ ! -f "$dest" ]]
do
echo -n "Enter the destination file name: "
read dest
if [ -f "$dest" ]; then
echo "The file name you entered was found!";
else
echo "The file name you entered was invalid - please try again";
fi
done
cat "$sourc" >> "$dest"
echo "Appending $sourc to $dest"
echo "Contents of $dest are: "
cat "$dest"
答え2
トリックを実行する必要があるシェル関数は次のとおりです。
appendFile(){
local iFile oFile;
[ ! -f "$1" ] || [ -z "$2" ] && {
while [ ! -f "$iFile" ]; do read -p "Input file: " -i "$1" iFile; done;
read -i "$2" -p "Output file: " oFile;
};
cat "${iFile-$1}" >> "${oFile-$2}";
cat "${oFile-$2}";
}