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    <p>First, don't do it that way. The best approach is to use <code>find -exec</code> properly:</p> <pre><code># this is safe find test -type d -exec echo '{}' + </code></pre> <p>The other safe approach is to use NUL-terminated list, though this requires that your find support <code>-print0</code>:</p> <pre><code># this is safe while IFS= read -r -d '' n; do printf '%q\n' "$n" done &lt; &lt;(find test -mindepth 1 -type d -print0) </code></pre> <p>You can also populate an array from find, and pass that array later:</p> <pre><code># this is safe declare -a myarray while IFS= read -r -d '' n; do myarray+=( "$n" ) done &lt; &lt;(find test -mindepth 1 -type d -print0) printf '%q\n' "${myarray[@]}" # printf is an example; use it however you want </code></pre> <p>If your find doesn't support <code>-print0</code>, your result is then unsafe -- the below will not behave as desired if files exist containing newlines in their names (which, yes, is legal):</p> <pre><code># this is unsafe while IFS= read -r n; do printf '%q\n' "$n" done &lt; &lt;(find test -mindepth 1 -type d) </code></pre> <p>If one isn't going to use one of the above, a third approach (less efficient in terms of both time and memory usage, as it reads the entire output of the subprocess before doing word-splitting) is to use an <code>IFS</code> variable which doesn't contain the space character. Turn off globbing (<code>set -f</code>) to prevent strings containing glob characters such as <code>[]</code>, <code>*</code> or <code>?</code> from being expanded:</p> <pre><code># this is unsafe (but less unsafe than it would be without the following precautions) ( IFS=$'\n' # split only on newlines set -f # disable globbing for n in $(find test -mindepth 1 -type d); do printf '%q\n' "$n" done ) </code></pre> <p>Finally, for the command-line parameter case, you should be using arrays if your shell supports them (i.e. it's ksh, bash or zsh):</p> <pre><code># this is safe for d in "$@"; do printf '%s\n' "$d" done </code></pre> <p>will maintain separation. Note that the quoting (and the use of <code>$@</code> rather than <code>$*</code>) is important. Arrays can be populated in other ways as well, such as glob expressions:</p> <pre><code># this is safe entries=( test/* ) for d in "${entries[@]}"; do printf '%s\n' "$d" done </code></pre>
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    1. POHow can I escape white space in a bash loop list?
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    1. USCharles Duffy
    1. USCharles Duffy
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    1. POHow can I escape white space in a bash loop list?
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    1. COdidn't know about that '+' flavor for -exec. sweet
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      1. USJohannes Schaub - litb
    2. COtho looks like it can also, like xargs, only put the arguments at the end of the given command :/ that's bugged me sometimes
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      1. USJohannes Schaub - litb
    3. COI think -exec [name] {} + is a GNU and 4.4-BSD extension. (At least, it doesn't appear on Solaris 8, and I don't think it was in AIX 4.3 either.) I guess the rest of us may be stuck with piping to xargs...
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      1. USMichael Ratanapintha
 

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