Web使用调试方式执行:sh -x test.sh第3行总出现bad substitution提示信息。. 百思不得其解:. 于是百度,查到一条有用信息,这与linux shell使用的是/bin/sh,还是/bin/bash有关系。. … Webotherwise some shells, such as Solaris /bin/sh or on Digital Unix V 5.0, die because of a “bad substitution”. Meanwhile, Posix requires that with ‘ = ’, quote removal happens prior to the assignment, and the expansion be the final contents of var without quoting (and thus subject to field splitting), in contrast to the behavior with ‘ - ’ passing the quoting through …
Shell Substitutions - Autoconf
Weboption on a single kshcommand line. -p Disables the processing of the $HOME/.profilefile when you use the shell as a login shell. -r Runs a restricted shell. Change the current working directory. Set the value of the SHELL, ENV, or PATHvariable. Specify the pathname of a command that contains a /(slash). Redirect output of a command with >(right WebAutoconf macros often use the set command to update ‘ $@ ’, so if you are writing shell code intended for configure you should not assume that the value of ‘ $@ ’ persists for any length of time. $ {10} The 10th, 11th, … positional parameters can be accessed only after a … meghalaya physical features
Bash Bad Substitution Syntax Error: Simple and Quick …
Web21 jun. 2024 · Linuxシェルプログラミングのエラー "bad substitution "の解決法 2024-02-08 09:22:43 :bad 置換エラー は、変数名のタイプミスで、置き換えに対応する値のペア … WebParameter Substitution Manipulating and/or expanding variables ${parameter} Same as $parameter, i.e., value of the variable parameter. In certain contexts, only the less ambiguous ${parameter}form works. May be used for concatenating variables with strings. your_id=${USER}-on-${HOSTNAME} echo "$your_id" # echo "Old \$PATH = $PATH" Web4 jan. 2016 · 第一步:使用命令查看你指令那个解释器 ls /bin/sh -al 我们基本上都是用的bash解释器,所以说如果你的解释器不是bash,建议修改。 第二步:修改bin/sh 指向bash. sudo ln -fs /bin/bash /bin/sh ... kali出现 bad substitution 解决方法 qq_43776408的博客 347 问题分析 从 ubuntu 6.10 开始,ubuntu 就将先前默认的bash shell 更换成了dash shell … meghalaya police service