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Command Reference: rx

Regexp pattern matching for file system objects (eg '.*.txt')

Description

Returns a list of files and directories that match a regexp pattern.

Output is a JSON list.

Usage

rx: pattern -> <stdout>

Examples

# inline regex file matching
cat: @{ rx: '.*\.txt' }

# writing a list of files to disk
rx: '.*\.go' -> > filelist.txt

# checking if any files exist
if { rx: somefiles.* } then {
    # files exist
}

# checking if no files exist
!if { rx: somefiles.* } then {
    # files do not exist
}

Detail

Unlike globbing (g) which can traverse directories (eg g: /path/*), rx is only designed to match file system objects in the current working directory.

rx uses Go (lang)'s standard regexp engine.

See Also

• commands/f: Lists objects (eg files) in the current working directory
• commands/g: Glob pattern matching for file system objects (eg *.txt)
• commands/match: Match an exact value in an array
• commands/regexp: Regexp tools for arrays / lists of strings