Web字符串判空有空格报错:binary operator expected. 使用 -z 或 -n 对一个变量判空时,需要注意若直接使用 [ -n $ {ARG} ] 这种形式,若 $ {ARG} 中有空格将会报错,. #!/bin/ bash ARG = "sd dd" if [ - n $ {ARG} ]; then echo 'ARG:' $ {ARG} else echo 'ARG is empty.' fi. line 27: [: sd: binary operator expected ... WebJan 20, 2024 · 如下代码,报错【binary operator expected】 这个错说什么期望二进制运算符,没搞懂 # get date if [ -z $1 ]; then echo 'no date set, exit now' exit 1 fi d1=$(date -d …
【转】 shell脚本binary operator expected错误 - 回忆之城 - IT博客
Web单词:20 分,10 个二.句子翻译: 40 分,8 题1: P2 A common method of analyzing an electrical network is mesh or loop analysis. The funda,文客久久网wenke99.com ... We have then constructed a circuit which performs the AND operation and is capable of making the logical deduction that the plane is unpiloted when, indeed, both pilots ... WebJul 20, 2024 · Viewed 611 times 1 I have a bug in my shell script, I know it is at the while loop but I cant see it, I already check spaces. I also try to use test instead of parenthesis … inconceivable soundboard
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WebApr 17, 2024 · It accomplishes what I want, but it first spits out 17 or so lines of the "binary operator expected." Is there a simple workaround to this? Thank you in advance for the advice. edit: oh, and I found a suggestion online to use -n instead of -z for indicate "contains information" rather than "empty" but this didn't seem to work. WebAug 9, 2024 · binary operator expected if [ -f $LIST } The } above should be a ], as explained by ShellCheck: $ shellcheck myscript Line 4: if [ -f $LIST } ^-- SC1009: The mentioned parser error was in this if expression. ^-- SC1073: Couldn't parse this test expression. ^-- SC1072: Expected test to end here (don't wrap commands in []/ [ []]). WebAug 26, 2024 · -bash。 [: @: 预计二进制运算符 - IT宝库 其他开发 -bash。 [: @: 预计二进制运算符 [英] -bash: [: @: binary operator expected 2024-08-26 其他开发 bash error-handling 本文是小编为大家收集整理的关于 -bash。 [: @: 预计二进制运算符 的处理/解决方法,可以参考本文帮助大家快速定位并解决问题,中文翻译不准确的可切换到 English … inconceivable the movie