使用特定的字符串在我的PATH中查找可执行文件 [英] find executables in my PATH with a particular string

问题描述

有没有一种方法可以快速知道我的 $ PATH 中的可执行文件是否包含特定的字符串?例如，我要快速列出包含 SRA 的可执行文件.

Is there a way to quickly know whether an executable in my $PATH contains a particular string? For instance, I want to quickly list the executables that contain SRA.

我问的原因是我有几个脚本，其中包含字符 SRA .问题是我总是忘记文件的起始字符(如果我还记得的话，我会使用制表符补全来找到它).

The reason I'm asking is that I have several scripts with the characters SRA in them. The problem is that I always forget the starting character of the file (if I do remember, I use tab completion to find it).

推荐答案

您可以将所有路径存储在数组中，然后使用 find 及其各种选项:

You can store all the paths in an array and then use find with its various options:

IFS=":" read -ra paths <<< "$PATH"
find "${paths[@]}" -type f -executable -name '*SRA*'

• IFS ="::"读取-ra路径<<<"$ PATH" 将所有路径读入数组，将字段分隔符临时设置为:，如源).
• IFS=":" read -ra paths <<< "$PATH" reads all the paths into an array, setting the field separator temporarily to :, as seen in Setting IFS for a single statement.
• -type f looks for files.
• -executable looks for files that are executable. You may use -perm +111 instead in OSX (source).

由于 -executable 选项在FreeBSD或OSX中不可用，因此

Since the -executable option is not available in FreeBSD or OSX, ghoti nicely recommends to use the -perm option:

find -perm -o=x,-g=x,-u=x

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