For Loops and Space in Names
Cameron Simpson
cs at zip.com.au
Wed Dec 10 02:31:45 UTC 2008
On 09Dec2008 18:53, Dave Ihnat <dihnat at dminet.com> wrote:
| On Wed, Dec 10, 2008 at 11:17:05AM +1100, Cameron Simpson wrote:
| > is totally reliable and does not need $IFS hacking (which amounts to
| > "guess a char I might not see in a filename).
|
| Hmm...I don't have as much problem with it, but that may be because
| since I started using Unix around 1980, using IFS to parse records has
| been a useful tool. Something like:
|
| SAVIFS=$IFS
| IFS=:
|
| while read INLINE </etc/passwd
| do
Yes, but I wasn't talking about using $IFS for records (which is just dandy),
I was talking about the earlier example on the page for coping with spaces in
filenames.
BTW, you know that this:
while read inline </etc/passwd
do
...
done
will repeatedly read the first line, versus:
while read inline
do
...
done </etc/passwd
which reads the lines in sequence? I know you do, but plenty of other
folks won't notice.
Cheers,
--
Cameron Simpson <cs at zip.com.au> DoD#743
http://www.cskk.ezoshosting.com/cs/
Try not, do. Do not, try not. - Yoda
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