Globbing means matching files by name patterns containing wildcards.

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“globbing” (*) comes from “global command”… Huh?

According to legend, in the early days what we now call "globbing" (i.e. using expressions like e.g. *.c, ./*.p?) was supported by one certain program /etc/glob, whose name in turn derived from "...
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shopt -s nocaseglob is not working on Ubuntu

Case insensitive file name globbing is not working in bash on Ubuntu 11.04 64bit. The shell options specified in .bashrc are as follows: shopt -s nocaseglob shopt -s nocasematch shopt also shows ...
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Passing glob expressions to functions/scripts

The following script is supposed to concatenate multiple csv files in a path specified in the first argument into a single csv file specified in the second argument #!/bin/zsh set -x set -v args=("$@"...
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Use shell's “*” glob, but exclude one file and don't match directories?

I've got a makefile rule that builds a zip/tarbar for distribution. In the recipe, it does some "value added" things, like ensure CR/LF's are correct, and ensures execute bits are correct before ...
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Why should 'Character Classes' be preferred over 'Character Ranges' In Shell (Bash)?

The Linux Command Line (Book - page count 47) says: ... you have to be very careful with them [character ranges] because they will not produce the expected results unless properly configured. For ...
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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 ...
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Bash globbing of multi-part argument

Below are some examples of a find command I'm trying to run. I'm looking for different ways that I might be able to use globbing to generate (as an example) a find command with predicates joined ...
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ls, regexp and environment variable

I wanted to declare an environment variable that stocks all the extensions of video files so I can use it when using the shell. I tried several things but never got it to work: If in my .bash_profile ...
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Modifying zsh globbing patterns to use with cp

I'm trying to write a script to copy files recursively from a particular folder except files A.extn, B/*.extn and C/* where B and C are directories and extn is just some generic extension. This is ...
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Bash script single-quotes parameter with globbing value

I'm trying to write a code search script, with configurable directories and files that are excluded. The main part of this script is the following line: out=$(grep -TInr$C$W --color=always \ --...
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How to store a path built with wildcards and containing with spaces into a variable

Here's the situation (I'm on a Mac, OS X El Capitan): # This works: $ cd /Applications/Adobe\ Illustrator*/Cool\ Extras.localized/en_US/Templates/; # These do not work: $ INSTALL_DIR=/Applications/...
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copy all files that have no extension

We can copy some file by extensions like this: cp *.txt ../new/ but how can I copy all files that have no extension?
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List all the files ending with 10 or 11 or 12

To list all the files ending with 10 or 11 or 12 I have tried ls *[10-12] and ls *[10,11,12] but these are not working. I don't know why. Can anyone help me?
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Count files in a directory by extension

For the purpose of testing, I'd like count how many images files are inside a directory, separating each image file type by file extension (jpg="yes". This because later it will be useful for another ...
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“which” with a little “grep”-like solution?

# which mkdir /bin/mkdir # which mkdi # How can I get the path of the e.g.: mkdir's binary without knowing the name of the binary file? (command). So that which mkdi would output the /bin/mkdir too....
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How can I use a wildcard to match just files, not directories?

I have a folder called home/homeLife I have a file called home1 home2 and home3 stored in /home I want to move all files that start with home* to home/homeLife/.. I typed mv home* /home/homeLife ...
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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 ...
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Why 2 linux machine behave differently with command of the same syntax?

I am using 2 machine , which is both Red Hat Enterprise Linux AS release 3 (Taroon Update 2) ( I check it in /etc/*-release ). I checked they are using the same default shell by ps -p $$, which is ...
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mv on a glob pattern does not work without sudo

I am using MySQL database on Ubuntu machine. My MySQL data directory is /var/lib/mysql/ , since I have a database named "db_test" , so, I have a directory named db_test/ under /var/lib/mysql/ . And ...
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brace expansion and * expansion

Assume in the working directory, there is only one djvu file. I would like to backup the file into a file with file name having extra .bk at the end. cp *.djvu{,.bk} copies the djvu file into a file ...
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How do I select files in a bash script that do not have an extension?

Let's say I have files xinitrc, alphabetsoup, ieat.pie in the current directory. Need a bash script to select only xinitrc and alphabetsoup.
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How do I let bash autocomplete wildcards?

If I have directory containing the files foo.bar.a.cat foo.bar.a.hat and I type ls f+TAB the bash shell autocompletes to ls foo.bar.a.. If I type ls *bar*+ TAB I would like it to autocomplete to *...
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checking an argument to a bash script is a string of all digits

The Bash FAQ says If you're validating a simple "string of digits", you can do it with a glob: # Bash if [[ $foo = *[!0-9]* ]]; then echo "'$foo' has a non-digit somewhere in it" else echo "'...
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for loop in bash function

I recently wrote the following bash function: makeaudiobook () { count=1 almbumartist=$2 for f in $1; do preprocess $f > $f-preprocessed text2wave $f-preprocessed -o $f.wav ...
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How to match * with hidden files inside a directory

How to match the hidden files inside the given directories for example If I give the below command it's not giving the result of the hidden files, du -b maybehere*/* how to achieve this ...
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Get the complement of the result of an ls command

Let's say I have a directory with multiple files, all of which are either binary files (files with no declared extensions) and source files (.c extension). I do this: $ ls and get: README.md ...
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How to pipe to multiple places with vertical bar?

I have a folder full of files with a .dot extension like this: a.dot b.dot c.dot I want to go through all the files in this folder and run a command on them such as this: dot -Tpdf a.dot -o a.pdf ...
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How/why does this globbing expression work?

In one of my bash scripts I needed to obtain the last part of a colon delimited string. For example I needed to grab the numeric 289283 value from the following value: OK: DriveC-ReadBytesPerSec: ...
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confusing about double quoting

I learned when I use command, double quoting treat all things as character except $, `, \ . But, when use command like find -type f -name "*.jpg" *.jpg is inside double quotes. Then, it means we want ...
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Find files without a number

I am trying to write a simple script that will iterate through all drives except sda. Right now I have this for i in $(find /dev/ -name "sd*" ! -name "sda*") do echo $i done However this ...
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file $(ls /usr/bin/* | grep zip) command gives me errors. What's wrong?

I'm a total noob when it comes to unix/linux commands and I decided to read a book. I've reached a chapter where they try to explain how to pass the output of commands as expansions to the shell. ...
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Remove files by regular expression

I want to keep files whose names match [0-9A-Z]{1,2}_\d{4}_\w+?\.dat, for example, A1_2001_pm23aD.dat, K_1998_12.dat, and remove the rest. However, the ls and rm commands do not support such regexes. ...
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Difference between find ~ and find *

What is the difference between find * and find ~ for searching a file? In terminal when my present working directory on root,then in terminal root@devils-ey3:~# find * -print -quit ~ On same ...
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Searching file in a directory through bash script

I have written the following code to search all the file names in the current working directory that contain the letter 'f'. for i in * do echo $i if [ $i = "*f*" ] then echo "no" else ...
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Script to loop through folders with numeric names

I am working on a bash script to compress the images in my Wordpress folders. The wordpress folder structure is as follows: > wp-content/uploads/2014/01/filename.jpg > wp-content/uploads/2014/...
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Why does grep treat '[D]ebug' string differently?

I've created simple text file named "T" to test the unusual behavior of grep: 1 Debug 2 debug 3 determined 4 Determined Tried different syntax: $ grep De T 1 Debug ...
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ls pattern matching

I know that [] is working in ls pattern matching: $ ls foo.c foo.h $ ls foo.[ch] foo.c foo.h but I cannot find where this is documented. I would like to know the syntax that would match these: $...
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Deduplicating Bash Brace Expansions

Brace expansions can produce multiple instances of file names if there is an overlap in the matches. A simple example: mkdir testdir; cd testdir touch abcd for f in *{b,c}*; do something_to "$f"; ...
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Parameter expansion in variable assigned with a wildcard

I have two files in my current folder (MA502) whose names are - MA502_TAAGGCGA-TCGCAGG_L001_R1_001.at.fastq MA502_TAAGGCGA-TCGCAGG_L001_R2_001.at.fastq I have many such folders - ex MA503, MA504 ...
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Expand wild cards in command before executing it

Suppose I want to type something like this: rm build/* tmp/* I am about to run it but I want to expand the wildcards before executing so I can verify what is about to happen. How can I do this? ...
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Meaning of “[--0]” in a glob pattern

I am a Linux/Unix newbie. I was reading about "Glob" and "Globbing Pathnames", and I found this strange (to me) part in man pages: "[--0]" matches the three characters '-', '.', '0', since '/' ...
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What is the Linux command to display how many file names in the directory end in two digits

What is the Linux command to display how many file names in the directory end in two digits? Using ls with a command like this : ls -l | wc –l *[0-9][0-9]
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How to use parameter substitution in glob pattern (zsh)

I want to process a bunch of files ending in some suffixes, so I wrote the following zsh script but it did not work. EXT=(.jpg .png .gif) EXT=${(j.|.)EXT} # EXT becomes '.jpg|.png|.gif' for f in *(...
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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 ...
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Move unique files from a folder with duplicates files

Well to put it simply, I have duplicate files in a folder, with this form: file.ext file(1).ext file(2).ext file(3).ext otherfile.ext otherfile(1).ext otherfile(2).ext ... I want to move only file....
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Filename Expansion: Find Utility Pattern Matching vs Bash Shell Pattern Matching

For filename expansion, the 'find' utility's '-name' option seems to function similarly, but not exactly the same as the bash shell's builtin pattern matching. Here are the relevant sections of the ...
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How do you get the first file in each subdirectory matching a list of file extensions?

How do you get the first file in each subdirectory matching a list of file extensions? My goal is to run a program on just any one of the files in a series of subdirectories. For example, below ...
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Disable glob qualifiers in zsh

Is there a way to disable glob qualifiers with zsh? It seems like a useful feature, but it gets in the way of normal parentheses. I use ag to search files, and ag mymethod(param) causes zsh to ...
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lftp exclude syntax confusion

I am confused with the syntax description given for lftp from their website: -x RX, --exclude=RX exclude matching files -X GP, --exclude-glob=GP exclude matching files How ...
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Delete matching file from every subfolder of current dir

I used this one to copy file in every dir: find -type d -maxdepth 1 -print0 | xargs -0 -n1 cp .htaccess Now i need to do reverse one and delete file with matching name from every sub directory of ...