How to test if there are files matching a pattern?

How to test if there are files matching a pattern?

I am trying to write an if statement to test whether there are any files matching a certain pattern. If there is a text file in a directory it should run a given script. Please give some ideas; I only want to run the script if there is a .txt in the directory.

Can you loop over a shell file in Bash?

You can use for loop easily over a set of shell file under bash or any other UNIX shell using wild card character. The general syntax is as follows: You can also use shell variables: You can loop through all files such as *.c, enter:

How to perform for loop on all files except one?

I have a folder filled with 9 Robot Framework test files. Only 8 of them have to be executed, as the last one is used to set up all the others (let’s call it config.robot ). but in this case it means that config.robot will also be run, which I don’t want. How could I perform a for loop on all files in folder except one?

What happens if a script matches more than one file?

As Chazelas points out, your script would fail if wildcard expansion matches more than one file. How it works? Wildcard expansion will match an array of filenames, we get the first one if there are some, otherwise null if no match. wc -l counts the lines in the expanded wildcard.

How to check if a command matches a file?

You can use echo “$FILE” to check if your command matches the right files before adding the mv command to the loop. Thanks for contributing an answer to Ask Ubuntu! Please be sure to answer the question.

How to find all strings that match specific pattern in Dictionary?

Given a dictionary of words, find all strings that match the given pattern where every character in the pattern is uniquely mapped to a character in the dictionary.

How to check if a file matches a symlink?

Now, if you want to check that the *.txt matches at least one regular file or symlink to regular file (like your [ -f *.txt ] suggests you want to do), or that all the files that match *.txt are regular files (after symlink resolution), that’s yet another matter.

How to use pattern in file matching in azure?

A pattern is a string or list of newline-delimited strings. File and directory names are compared to patterns to include (or sometimes exclude) them in a task. You can build up complex behavior by stacking multiple patterns. See fnmatch for a full syntax guide. Most characters are used as exact matches.

What do you mean by pattern in fnmatch?

A pattern is a string or list of newline-delimited strings. File and directory names are compared to patterns to include (or sometimes exclude) them in a task. You can build up complex behavior by stacking multiple patterns. See fnmatch for a full syntax guide.

How to find a pattern in grep file?

If you just want the results that match you can use grep ‘s -o switch to report only the things that match: $ grep –version grep (GNU grep) 2.14 Copyright (C) 2012 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later .

How to move files of one pattern to another?

I only need to move crust.etcMC12345.txt and crust.etcMC23456.txt to another dir, /home/out .what is the pattern i use in the mv command for the above scenario ? Here ? stands for one literal and * for zero or more, and hence the combination ?* stands for one or more characters.

How to move lines from one file to another in Linux?

To append to file2, write to a temporary file and use cat to append at the end of file in a bash script, or use: N.B. For the last solution, only one input file can be modified at a time. You can use perl and select a different filehandle based in a match of a regular expression when printing:

How to change the execution order of Mocha test?

I have put them in a folder called test and when I execute the mocha command the first file (abc.js) is always executed before xyz.js. I thought this might be due to alphabetical ordering and renamed the files as but still, the content of the xyz.js (previously abc.js) is executed first. How can I change the execution order of these test files?

How to iterate files in directory and pattern?

Each ‘group’ has a different processing methodology (i.e. a different command is called for processing). Call a command based on the determined grouping. I am running on Ubuntu 10.0.4. I am new to bash, and would appreciate skeleton code snippet that will help me get started in writing this script.