Hi Greg, Thank you for your detailed explanation, I now understand the reason, and will use quote in my scripts to avoid unexpected bugs.
Best Regards Lingfei Kong ------------------ Original ------------------ From: "Greg Wooledge";<wool...@eeg.ccf.org>; Date: Wed, Jul 27, 2016 09:28 PM To: "Lingfei Kong"<466701...@qq.com>; Cc: "bug-bash"<bug-bash@gnu.org>; Subject: Re: echo builtin command will give the wrong value of the variable when there is a file named: 11 in the current directory On Wed, Jul 27, 2016 at 07:24:11PM +0800, Lingfei Kong wrote: > # touch 11 > # c='[11761][1469504252]' > # echo $c > 11 This is why you MUST ALWAYS quote your parameter expansions. echo "$c" http://mywiki.wooledge.org/Quotes http://mywiki.wooledge.org/BashGuide
