Globbing means matching files by name patterns containing wildcards.

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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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3answers
6k views

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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2answers
534 views

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 ...
4
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3answers
305 views

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 ...
4
votes
1answer
769 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? ...
4
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2answers
416 views

Sort files by modification time

I've seen many questions and answers here using a construction along the lines of list_dir=`ls -t /path/to/dir/` for i in $list_dir; do or ls -t | while read i; do Now, I know that you shouldn't ...
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4answers
551 views

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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4answers
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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. ...
4
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1answer
192 views

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: ...
4
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1answer
142 views

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 ...
4
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1answer
2k views

Why does grep sometimes show the file name, sometimes not?

Can somebody please explain to me why I don't get the full path in example 1? example 1 - returning found line grep MODIFY /opt/releases/packages/cr_c_cr6/sas/dbms/*/*; outcome: MODIFY example 2 ...
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How can I search for a file with fixed name length using ls?

In a directory, I have files like lazer_100506 lazer_100707 lazer_091211 lazer_110103 lazer_100406_temp lazer_100622#delete etc How can I get a listing of only the first four files? $ ls ...
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479 views

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 > ...
4
votes
2answers
5k views

How to use 7z to archive all the files and directories (including hidden ones) in a directory?

Because of specifics of my archiving needs I am not comfortable with solid tar.gz archives and use 7z instead. I use the following command to do this: 7z a -t7z -m0=lzma -mx=9 -mfb=64 -md=32m ...
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4answers
272 views

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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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 ...
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4answers
4k views

How to exclude numeric directories with rsync?

I know rsync has an --exclude option which I use quite frequently. But how can I specify that it should exclude all "numeric" directories? In the directory listing below I would like to only have it ...
4
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1answer
458 views

ZSH: Globbing the first N files under a path in lexicographic order

I was wondering if there is a way to specify the first N files under a given a directory in zsh. I am interested in solutions for recursive enumeration (i.e. any file recursively below a path is ...
4
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3answers
832 views

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 ...
4
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1answer
53 views

Use rsync to just get a folder and its content with a pattern

I've looked all around the internet, looked in regexp sites and everything else, but I'm unable to write a rsync command to fetch what I want to. I need to mirror the FreeBSD release, but I don't ...
4
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3answers
285 views

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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604 views

bash globstar matching

I have this directory structure: ~/tmp/globstar ɀ find dir -type f dir/file.ext dir/subdir1/file.ext dir/subdir2/file.ext and, with the globstar option enabled in Bash, I can say: ~/tmp/globstar ...
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715 views

How can I list all *.doc files in a Zip archive, including files in subdirectories?

I have Zip files, that might look like this: $ zipinfo -1 zip.zip doc.doc dotx.dotx xls.xls ppt.ppt txt.txt c.c subdir/subdir2/doc.doc subdir/xls.xls subdir/ppt.ppt subdir/c.c subdir/txt.txt ...
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190 views

Force Bash 4 'globstar' option to ignore symlinks

Bash 4 has a fantastic option called 'globstar' that emulates (i.e. was stolen from) zsh's ** syntax for globbing across multiple directories. However, it's somewhat crippled (for my usage, at least) ...
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1k 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 ...
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1k views

Excluding a directory name in a zsh recursive glob

I'm running zsh on Linux under setopt extended_glob ksh_glob glob_dots. I'm looking for something easy to type on the command line, with no portability requirements. I'm looking at a source code tree, ...
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745 views

How do I extract all .htaccess files from a tarball?

I want to extract all .htaccess files from a tarball, how can I do so? I see only one mention of "include" in the manual page of tar which is not related with an option for including only certain ...
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4answers
260 views

Make many subdirectories at once

Suppose I have a directory /, and it contains many directories /mydir, /hisdir, /herdir, and each of those need to have a similar structure. For each directory in /, there needs to be a directory doc ...
3
votes
2answers
1k 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 ...
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346 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 ...
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593 views

Fastest way to open all files in a directory with multiple file extensions on commandline

If I want to open all mp4 files in a directory, I can simply do something like totem *.mp4. But how can I open all mp4 and all flv files in that directory with one command. I.e. I want to do something ...
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3answers
575 views

How to move the first x files

I have this huge folder with thousands of unordered files. Is it feasible to move the first 5000s to a subfolder via the mv command? For now I move files with mv *some_pattern* ./subfolder1/ ...
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126 views

History of Bash globbing

Is there a historical reason why Bash "globbing" and regular expressions are not identical? For example, I believe that in Bash [1-2]* matches anything that starts with a 1 or a 2 followed by anything ...
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4answers
180 views

Expansion with numbers in human readable format

So, I want to play some MP3s in a console player that takes file names as inputs. I have the following files, as given by ls -1 * where * get expanded by my shell (zsh): 1 - Main title.mp3 10 - End ...
3
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1answer
559 views

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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92 views

Loop in WildCard as Input of Script

I want to use my script on many files sometimes. I used this for the purpose: for etminput in $1 do #process done But this just gives the first input. How can I do the process on every ...
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5answers
148 views

Look if a folder has some files of certain extention

Lets say I have a file structure: $ cd /home/Desktop $ ls -d */ Abc/ Qwe/ Zxc/ Rty/ $ Now I want to iterate through every directory and look if they have any .pdf files. Could some one please ...
3
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2k views

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.
3
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156 views

Valgrind /usr/lib files are not regular Linux files

The problem that I encountered today (on an embedded device with Linux) is that some files (specifically, the Valgrind /usr/lib files) are behaving very strange and they are not copy-able with scp ...
3
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3answers
69 views

Full path in glob in Zsh

Say I run the following on /some/path: for x in foo/*; do print $x done Are there any parameters I can use to tell Zsh to print, not just the filename, but the full absolute path to $x? (without ...
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374 views

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 ...
3
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5answers
228 views

Regex match in CLI

Is there something like a logical for the cli? I want to achieve this mv -t newfolder *.(png|jpg) so that alls jpg and png files are moved into newfolder. I know it could be done with mv -t ...
3
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2answers
180 views

returning strings corresponding to shell glob matching

Suppose I have a subdirectory called sub. Then I want to operate on all files in that directory with the extension "txt". I want something like for f in sub/*.txt do enscript -b "" -o {$f ...
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58 views

How can I get the first match from wildcard expansion?

Shells like Bash and Zsh expand wildcard into arguments, as many arguments as match the pattern: $ echo *.txt 1.txt 2.txt 3.txt But what if I only want the first match to be returned, not all the ...
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4answers
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Searching a pattern in file names with number

I have a large number of files in a folder each with the date as the filename. For example 20130101 20130102 20130103 . . . 20130131 similarly for other months 20130201 to 20130230, the pattern is ...
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2answers
3k views

Bash globbing and argument passing

I have the following simplified bash script #!/bin/bash files=("$@") if [ "X$files" = "X" ]; then files=$HOME/print/*.pdf; fi for file in "${files[@]}"; do ls "$file"; done If I pass ...
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263 views

List all dotfiles current directory using zsh

How can I list all dotfiles in a directory using zsh.?
3
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3answers
439 views

Where did scp put these files?

I ran an scp command to download some files from an SSH server. Instead of using the . to put it in the current folder, I accidentally typed *. It looks like scp copied the files and put them ...
3
votes
2answers
1k views

zsh: excluding files from a pattern

Say I have the following files: |-- bar `-- foo |-- type_A_1 |-- type_A_2 |-- type_B_1 |-- type_B_2 |-- type_B_xx |-- type_B_xx `-- something_else I thought the ...
3
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2answers
76 views

Move every file that is not a directory

I have a directory that I am trying to clean out that contains both files and subdirectories. What I am trying to do is simple: move all the files into another directory, but leave all the ...