shell script to remove a file if it already exist

2018-06-07 22:19:53

I am working on some stuff where I am storing data in a file. But each time I run the script it gets appended to the previous file.

I want help on how I can remove the file if it already exists.

我使用的另一条命令是：

[ -e file ] && rm file

Don't bother checking if the file exists, just try to remove it.

rm -f /p/a/t/h
# or
rm /p/a/t/h 2> /dev/null

But more likely, if you are appending to the file it is because your script is using >> to redirect something into the file. Just replace >> with > . It's hard to say since you've provided no code.

你可以使用这个：

#!/bin/bash

file="file_you_want_to_delete"

if [ -f $file ] ; then
    rm $file
fi

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