BASH BUILTIN COMMANDS 内建命令 除非另外说明,这一章介绍的内建命令如果接受-引导的选项,那么它也接受--作为参数,来指示选项的结束 :[arguments] 没有效果;这个命令除了扩展arguments并且作任何指定的重定向之外,不做任何事。退出时返回0。 .filename[arguments] sourcefilename[arguments] 读取并在当前 shell 环境...
执行man type,有一段就告诉你内置命令都有啥了 BASH BUILTIN COMMANDS Unless otherwise noted, each builtin command documented in this section as accepting options preceded by - accepts -- to signify the end of the options. The :, true, false, and test builtins do not accept options and do ...
fg, getopts, hash, help, history, jobs, kill, let, local, logout, mapfile, popd, printf, pushd, pwd, read, readonly, return, set, shift, shopt, source, suspend, test, times, trap, true, type, typeset, ulimit, umask, unalias, unset, wait - bash built-in commands, see bash(1...
Bash - Builtin Commands builtin refers to: a builtin command. See or to the specific builtin command. See (useful when defining a function whose name is the same as a shell builtin) The builtin command execute the specified... Bash - How to pass arguments that have space in their ...
exit is a builtin command and cause the shell to exit with a given exit status. n is the exit status of n. If n is omitted,the exit status is that of the last command executed. A function can be called on a EXIT before the shell terminates.
Command to displaybreakmanual in Linux:$ man 1 break NAME bash BASH BUILTIN COMMANDS SEE ALSO bash(1),sh(1)
getopts hash help history jobs kill let local logout mapfile popd printf pushd pwd read readonly return set shift shopt source suspend test times trap true type typeset ulimit umask unalias unset wait -bashbuilt-incommands seebash(1)
在bash 中,条件表达式(Conditional expressions)用于进行一些判断。 例如判断文件是否存在、字符串是否相等、比较数值大小,等等。 查看man bash 的CONDITIONAL EXPRESSIONS小节,对条件表达式说明如下: Conditional expressions are used by the [[ compound command and the test and [ builtin commands to test file attri...
BASH BUILTIN COMMANDS 内建命令 除非另外说明,这一章介绍的内建命令如果接受 - 引导的选项,那么它也接受 -- 作为参数,来指示选项的结束 返回值是0,除非给出了一个不能识别的选项或是产生了一个错误。 产生的匹配与可编程补全代码根据补全规则加上相同的标志直接产生的结果相同。如果指定了 word,只有匹配 word...
Bash – Override Commands: In thisBash Tutorial, we shall learn to override an inbuilt command usingBash Functions. We may override commands in bash by creating a function with the same name as the command we would like to override. For example to overridepscommand, you have to create a fu...