List files with full path (Unix)

Difficulty Level

Beginner

Published on : 14/10/2023

Attention : This code requires administrator privileges.

This macro executes a Unix shell command to list files that match a specified pattern (e.g., /path/*.sas^©). It is designed for Unix environments. The result is a character string containing the list of file paths, where each path is complete and enclosed in double quotes, which allows for proper handling of file names containing spaces. The macro relies on another non-standard macro, `%qreadpipe`, to execute the system command.

Data Analysis

Type : EXTERNE

The macro does not use SAS datasets. It interacts directly with the OS file system (Unix) to list its contents via a shell command. The source of the information is therefore the operating system.

1 Code Block

Macro

Explanation :
The code defines a `%lsfpq` macro that accepts a directory path with a file pattern (`dir`). It uses the `%qreadpipe` macro to execute a Unix shell command. This command (`for fn in ...`) iterates through all files matching the provided pattern, then displays each file name with its full path, enclosed in quotes. The `%unquote` function cleans the final result to return it as a simple character string.

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1	%macro lsfpq(dir);
2	%unquote(%qreadpipe(for fn in %sysfunc(dequote(&dir)) ;
3	DO echo \"$fn\" ;
4	done))
5	%mend lsfpq;
6

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Copyright Info : This is public domain software. No guarantee as to suitability or accuracy is given or implied. User uses this code entirely at their own risk.

Difficulty Level

Published on : 14/10/2023

Data Analysis

1 Code Block

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