解释"binary operator expected"错误信息的含义 "binary operator expected" 是一个在 Shell 脚本中常见的错误,它通常发生在条件表达式中预期应该有一个二元运算符(如 =、!=、-eq 等),但实际上由于某些原因没有正确提供或者表达式格式错误。这个错误表明 Shell 解释器在解析表达式时遇到了不符合预期的语法结构。 提供...
代码语言:shell AI代码解释 [root@iZuf6gxtsgxni1r88kx9rtZ gulu]# sh test1.shtest1.sh: line4:[: Full: unary operator expected 2 如何解决unary operator expected报错 根据搜索引擎,发现unary operator expected报错的意思是一元运算符预期错误,其实这个字段的本身我们能猜到一点方向。但这里先卖个关子,讲一...
解决Shell编程中的”[: =: binary operator expected”2016年8月30日 yl 发表回复 以下语句 if [ -n $curStr ];then sentence fi 如果$curStr为空,就会产生”[: =: binary operator expected” 的错误。 解决办法: if [[ -n $curStr ]];then sentence fi...
今天写了个shell脚本一运行就出现"binary operator expected"错误 test1.sh: line 6: [: /export/images/a10091400ux0415: binary operator expected 检查脚本第六行: if [ ! -f /export/images/$line ];then 上网查了一下,加上双引号,就可以了 将if [ ! -f /export/images/$line ];then 改为 if ...
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:输出：显然不对 解决方法，使用 [[ -n ${ARG} ]] 或 [ -n "${ARG}" ]eg:
bash - ERROR: binary operator expected scnzzh@ZUBT:~$ re='^[0-9]+$' scnzzh@ZUBT:~$ a=001 scnzzh@ZUBT:~$ b=a12 scnzzh@ZUBT:~$ if [ $a =~ $re ]; then echo 'yyy'; fi bash: [: =~: binary operator expected scnzzh@ZUBT:~$ if [[ $a =~ $re ]]; then echo '...
'Assembly' or 'Module' expected At least one parameter type of this binary operator must be the containing type '<typename>' Attribute '<attributename>' cannot be applied multiple times Attribute '<attributename>' cannot be applied to '<membername>' because the attribute is not valid on t...
echo "Process Close Success !" else echo "Process Close Fail !" exit 1 fi fi 输出: stop.sh:21:[:31016:unexpectedoperator 显然不对 解决方法,使用[[ -n ${ARG} ]]或[ -n "${ARG}" ] eg: if [ -z "$old_run_pid" ];then
Windows PowerShell Index -contains operator vs .contains() method -ea operator -ErrorAction:SilentlyContinue parameter is not being respected & $error variable not updated -ExpandProperty & Export CSV !!! powershell script to add a word in the beginning of the text file - URGENT !!! 'A p...
[] operator, one can also index array elements, index start from 0; the output below is 2 jsonpath(obj, '$.obj.array[1]') % [] operator supports range, for example below commands yields [1,2] jsonpath(obj, '$.obj.array[0:1]') % a negative index in [] counting elements ...