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h2odev
Asked: 2016-08-18 05:53:25 +0800 CST

Linux shell script "No such file or directory"

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I have created a shell script to complete 3 simple tasks (zip a directory, rename the final file and delete the source directory). The script source is below:

#!/bin/bash
if [[ $2 == *"/data/"* ]]
then
    src= $2"/*";
    dest= $1".zip";

    # Just for test
    echo $src;

    # Commented for now
    #zip -r -j $dest $src
    #mv $dest $1
    #rm -rf $2
else
    echo "Invalid arguments";
fi

When I run the script above with these parameters I have with error:

./scriptzip.sh /data/file-new /data/file-old

./scriptzip.sh: line 4: /data/file-old/*: No such file or directory
./scriptzip.sh: line 5: /data/file-new.zip: No such file or directory

How can prevent the shell to test a variable for "directory like" string? There is any way to skip that?

linux bash sh

1 Answers

  1. Best Answer

    The space is significant in the shell, as that's what divides the tokens in commands such as echo foo bar or worse rm -rf /some/where /. Hence, assignment must not include spaces around the =:

    foo=/etc/*
echo $foo

    Variables may also need quoting, depending on exactly what you want to happen for here glob expansion and also word splitting (incorrect word splitting to rm can result in unexpected (and hilarious) filesystem cleanups).

    echo "$foo"
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