Globbing means matching files by name patterns containing wildcards.

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29
votes
7answers
29k views

Rsync filter: copying one pattern only

I am trying to create a directory that will house all and only my PDFs compiled from LaTeX. I like keeping each project in a separate folder, all housed in a big folder called LaTeX. So I tried ...
15
votes
1answer
513 views

How do ${0##*/} and ${0%/*} work?

I'm quite confused about the following regular expressions I found in a shell script: ${0##*/} ${0%/*} How do they work?
26
votes
1answer
1k views

Why does my regular expression work in X but not in Y?

I wrote a regular expression which works well in a certain program (grep, sed, awk, perl, python, ruby, ksh, bash, zsh, find, emacs, vi, vim, gedit, …). But when I use it in a different program (or on ...
41
votes
6answers
39k views

How do you move all files (including hidden) in a directory to another?

How do I move all files in a directory (including the hidden ones) to another directory? For example, if I have a folder "Foo" with the files ".hidden" and "notHidden" inside, how do I move both ...
37
votes
6answers
6k views

The result of ls * , ls ** and ls ***

I know using the command ls will list all the directories. But what does the ls * command do ? I used it and it just lists the directories. Is the star in front of ls means how deep it can list the ...
28
votes
1answer
2k views

Does 'rm .*' ever delete the parent directory?

The expression .* is expanded by bash to include the current and parent directories: $ ls -la total 2600 drwxrwxrwx 2 terdon terdon 2162688 Sep 10 16:22 . drwxr-xr-x 142 terdon terdon 491520 Sep ...
15
votes
3answers
768 views

What is the difference between [[ $a == z* ]] and [ $a == z* ]?

Is there is any difference between these two. [[ $a == z* ]] and [ $a == z* ] Can I have an example where they would have different outputs? Furthermore, how does the working of [[ ]] differs ...
17
votes
5answers
3k views

What does `mv ./*` without specifying destination do?

I accidentally forgot to specify destination before hitting the Return key. Where does mv ./* without specifying destination move the files and directories under current directory to?
8
votes
4answers
9k views

How do I reverse a for loop?

How do I properly do a for loop in reverse order? for f in /var/logs/foo*.log; do bar "$f" done I need a solution that doesn't break for funky characters in the file names.
11
votes
2answers
2k views

What is the difference between “du -sh *” and “du -sh ./*”?

The title says it all. What's the difference between those 2 commands? NOTE: I'm more interested in the * and ./* part.
18
votes
4answers
16k views

How to copy some, but not all files?

So, you can use the * as a wild card for all files when using cp within context of a directory. Is there a way to copy all files except x file?
10
votes
4answers
16k views

How do I recursively delete directories with wildcard?

I am working through SSH on a WD My Book World Edition. Basically I would like to start at a particular directory level, and recursively remove all sub-directories matching .Apple* - how would I go ...
9
votes
1answer
8k views

How to download specific files from some url path with wget

If I don't want to have to download the files found in a specific url path manually, what options do I have? Using wildcards fail: $ wget 'http://www.shinken-monitoring.org/pub/debian/*deb' Warning: ...
9
votes
1answer
22k views

How can I assign the result of a command to a shell variable?

I want to assign the result of an expression to a variable and concatenate it with a string, then echo it. Here's what I've got: #!/bin/bash cd ~/Desktop; thefile= ls -t -U | grep -m 1 "Screen Shot"; ...
7
votes
3answers
13k views

Test if there are files matching a pattern in bash

I am trying to write an if statement in bash 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. My code currently if ...
7
votes
6answers
7k views

What's the best way to count the number of files in a directory? [duplicate]

If parsing the output of ls is dangerous because it can break on some funky characters (spaces, \n, ... ), what's the best way to know the number of files in a directory? I usualy rely on find to ...
5
votes
8answers
2k views

Run a command on all subfolders

If you have a series of subfolders (like from a to z) and want to run a command on each one of them (like rm *.pdf or ls *.pdf), how do you do that? The "manual" approach would be cd a, rm *.pdf, or ...
6
votes
3answers
363 views

“mkdir foo; svn mv * foo”

I often want to do some variant of this idiom: $ mkdir 2010 $ svn mv * 2010 Of course, I get an error because the glob matches 2010 as well: svn: Cannot copy path '2010' into its own child ...
6
votes
1answer
331 views

Can I have my shell history record how wildcards expanded?

If I run: $ ls * foo bar buzz $ history | tail -1 ls * You can see that in my shell history it remembers that I ran ls * rather than ls foo bar buzz. Ideally, I'd like to record both in separate ...
4
votes
1answer
808 views

How do I filter a glob in zsh

Basically I can use a glob in zsh to a list. Often, it turns out, I would like to filter that list, grep'ishly I'm wondering though, if I need to do that. Does zsh have a method to filter a list? ...
5
votes
1answer
5k views

Why is my find not recursive?

I am running the following command, but it is not performed recursively: find . -name *.java I know there are java files further down in the current directory but it is performing the find on the ...
3
votes
2answers
694 views

How to copy multiple files but keep their extensions the same?

I am looping through a number of files, and $file represents the current file. How can I make copies or renames and keep the extension the same for this current file? e.g. if $file = x.jpg How to ...
3
votes
2answers
2k views

How do I run a command on multiple files

This is pretty basic, I have a folder with several subfolders of JS files and i want to run Google's Clojure compiler on all of the files in those folders. The command to process a single file is as ...
2
votes
1answer
121 views

Bash: Syntax Error on @()

I have the following function in my .bashrc file: extract() { local c e i (($#)) || return for i; do c='' e=1 if [[ ! -r $i ]]; then echo "$0: file ...
2
votes
1answer
67 views

Can I use variables inside {} expansion without `eval`?

Can I use variables inside {} expansion without appealing to eval? If so, how? This doesn't work: $ touch 1.foo 1.bar $ ls 1.{foo,bar} 1.bar 1.foo $ extensions=foo,bar $ ls 1.{$extensions} ls: ...
2
votes
2answers
725 views

Working of rm/ls with [0-9]

I am learning the shell commands and came across the short tags eg.[0-9],[[:digit:]] etc.. As a proof of concept i tried deleting all the files with the rm command(i know its not a good practise but i ...
2
votes
2answers
663 views

How do I output a count of all files with “tty” in the filename in the Linux directory that holds files on system devices

I am having trouble knowing how to output a count of all files with “tty” in the filename in the Linux directory that holds files on system devices.
0
votes
0answers
108 views

How to use find command with wildcard when current directory contains a match? [duplicate]

Possible Duplicate: find not recursive when file at top I'm having some confusion with the find command. If I type: find . -name *.xml or find ./ -name *.xml I receive a list of all ...
8
votes
7answers
22k views

List only regular files (but not directories) in current directory

I can use ls -ld */ to list all the directory entries in the current directory. Is there a similarly easy way to just list all the regular files in the current directory? I know I can use find find . ...
19
votes
1answer
741 views

Why doesn't 'find' show this file?

Using find with grep, one can locate files that match a pattern: # find | grep error ./solr-modifiedSolr4/SolrPhpClient/phpdocs/errors.html ./error_log ./includes/classes/error_log However, using ...
18
votes
2answers
905 views

What does .??* mean in a shell command?

The following command will tar all "dot" files and folders: tar -zcvf dotfiles.tar.gz .??* I am familiar with regular expressions, but I don't understand how to interpret .??*. I executed ls .??* ...
16
votes
6answers
17k views

How to match case insensitive patterns with ls?

I would like to list all files matching a certain pattern while ignoring the case. For example, I run the following commands: ls *abc* I need to see all the file that have "abc" as a part of the ...
12
votes
2answers
748 views

Shell filename pattern that expands to dot files but not to `..`?

Recently I had a little mishap caused by a shell pattern that expanded in an unexpected way. I wanted to change the owner of a bunch of dot files in the /root directory, so I did chown -R root .* ...
13
votes
2answers
381 views

Can I make `rm` interactive only when using globbing? (in either bash or zsh or both)

Whenever I rm multiple items at once with shell globbing and there's even the slightest possibility that the pattern expands to more than I expect it to, I always try to remember to add -i, but (of ...
7
votes
5answers
7k views

In linux, how to delete all files EXCEPT the pattern *.txt?

I know how to delete all txt file under current directory by rm *.txt. Does anyone know how to delete all files in current directory EXCEPT txt file?
6
votes
5answers
4k views

How to copy all html files from a directory tree to a single directory?

I want to copy all the .html files in myDir and its subdirectories to ~/otherDir. Here's what I tried (it doesn't work): $ find myDir -name *.html -print | xargs -0 cp ~/otherDir usage: cp [-R [-H | ...
5
votes
2answers
845 views

How to enable tab completion of wildcards in bash?

How can I enable tab completion in bash for a statement such as vim db/migrate/*crea? Essentially I am looking for tab completion to match the regular expression and present the options. How would ...
1
vote
2answers
6k views

Delete files in a directory that match a regexp, using a Mac terminal

How do I delete files in a directory that match a given regexp, or a similar solution, using a Mac terminal?
3
votes
4answers
2k views

cp hidden files with glob patterns

Situation : $ mkdir foo && touch foo/.test $ cp foo/* . zsh: no matches found: test/* (or bash : cp: cannot stat ‘test/*’: No such file or directory) I have a directory full of hidden ...
3
votes
3answers
361 views

What exactly did mv /tmp/folder/* /* do to my filesystem?

It's hard to search for special characters on google, which is why I'm posting this here. I recently ran (as root) a mv /tmp/folder/* /* when I meant to run mv /tmp/folder/* ./ Big mistake! Things ...
7
votes
1answer
243 views

Cannot expand asterisk without proper permission

Can someone explain to me the following? $ ls -ld /temp/sit/build/ dr-xr-s--- 3 asdf qwer 4096 Jan 31 2012 /temp/sit/build/ $ ls -ld /temp/sit/build/* ls: /temp/sit/build/*: Permission denied So ...
5
votes
4answers
621 views

Check if a folder has a certain type of file present

How could I check if a file has a file of extension .java? So far I have: for javaFile in *.java ; do { echo "The file $javaFile has : " >> ~/Desktop/externalServers.txt ...
5
votes
4answers
212 views

is the behaviour of .* to include . and .. defined in LSB or POSIX or some other specification?

as title: is the behaviour of .* to include . and .. defined in LSB or POSIX or some other specification?
4
votes
1answer
150 views

What is the tool that allows me to specify arbitrary directories using **

I once saw a colleague uses a tool which allows to use ** to represent any directories. For example: if a file called myfile.java sits deep inside: src/main/com/mycompany/product/store/myfile.java ...
3
votes
3answers
2k views

How to delete 2 months back files in unix

Say I have below log files, AA_XX_20130719185428.log exec_xxx_cpb_20130712182453.log 13122013121327_AR_INC_DOBC_1.dprf.log 24122013_masterscript.LOG Date part contains both date and time. I want ...
3
votes
1answer
195 views

Why is `find -name *.jks` not returning some files? [duplicate]

find . -name *.jks -print 2>/dev/null returns files of extension jks that do not have underscores as part of their name. Much to my surprise, I have just discovered that * does NOT substitute ...
2
votes
2answers
224 views

Select greatest numbered filename

Simple requirement but can't find anything online which can achieve it. I have a list of dated files as below... filename_20120101.dat filename_20120102.dat filename_20120103.dat I ...
1
vote
2answers
740 views

Is it possible to change the order of a glob?

I am trying to show all instances of a particular message from the syslog in chronological order by doing something like the following: grep squiggle /var/log/messages* Unfortunately the glob ...
1
vote
1answer
1k views

Difficulty making a regular expression to find at least 2 occurrences of a character in a file

I have a file containing random codes. Each code has ten characters in it, and I am trying to grep codes in the file that have at least 2 occurrences of a character. I am doing this: grep DD* ...
1
vote
1answer
304 views

restricting pushes to selected Mercurial repositories using `ssh` forced commands and `hg-ssh`

The context of this question is the hg-ssh script. It is helpful but not critical to know something about Mercurial. This script sets up a forced command using public keys so the given public key ...