1
vote
1answer
39 views

Can I start a background process with a specific working directory?

Say I have this structure /masterscript /a/script1 /a/b/script2 In masterscript I spawn the other scripts as background processes: "/a/script1" & "/a/b/script2" & The problem is that ...
2
votes
1answer
67 views

Why does `cp -a . /dir` copy contents instead of directory?

I wanted to copy a directory that I was presently in. I tried cp -a . ~/xyz It copied the contents of the directory, yet this worked: cp -a "$(pwd)" ~/xyz [As desired, this copied the directory ...
3
votes
1answer
40 views

Fine-tune LS_COLORS for directory suffixes?

I’m fine customizing most settings in LS_COLORS. I don’t need help customizing the colors for different file suffixes. What I would like to do is configure special colors for certain directories, ...
6
votes
1answer
353 views

Expand ~, . and `..`

Since ~, . and .. are special directories, why are they handled differently in the following example? $ echo ~ /home/tim $ echo .. .. $ echo . . ~ is expanded into the dir, but the other two are ...
3
votes
3answers
182 views

Return to directory location prior to cd-ing to home directory

As is well known, cd without an argument changes one's current directory to their home directory. I am wondering if there is any way, after using the cd command like this, to return to the directory ...
7
votes
6answers
973 views

Is it possible to remove folder prefix from a `ls` command

I am in a bash script and I want to get the list of all files (let say all jar files). I execute the command ls -1 lib/*.jar and I get the output: lib/mylib_1.jar lib/mylib_2.jar ... Is there any ...
16
votes
6answers
2k views

Why do I have to cd out of a deleted directory?

On my server I have a directory structure looking something like this: /myproject/code I normally have an ssh connection to the server and 'stand' in that directory: root@machine:/myproject/code# ...
1
vote
1answer
94 views

List files, directories and executables in current directory

I have php shell and I have function that do just that (but it give me error when I call scandir($path) function because of restriction in php), so I need to use my bash shell to do the same. It can ...
4
votes
2answers
440 views

Where is a shell script run from?

I have a shell script in /usr/bin. Let's call it hello. It contains this: echo "I am located in $PWD" echo "I am called from this directory: ???" Running hello from /home/Documents I expect the ...
3
votes
3answers
449 views

find with execdir

I run a find with execdir both I don't get the results I was expecting. SSCCE below: mkdir -p a/b/c find . -type d -execdir touch foo \; $ tree a a ├── b │   ├── c │   └── foo └── foo Directory c ...
3
votes
1answer
156 views

How can there be a directory named `~`?

I was trying to test out this buggy/new tool to see how it works, and it prompted me to choose a directory to use for stuff I am doing. From the directory ~/Code/indep, I typed in ...
3
votes
1answer
99 views

Test for link with trailing slash?

I created in /tmp/test/ mkdir somedir ln -s somedir/ somelink I want to loop through only directories: for file in */ ; do if [[ -d "$file" && ! -L "$file" ]]; then echo "$file is a ...
1
vote
2answers
353 views

How to find certain files and move them to a new directory in the same command?

So I was looking around and all I have found is how to do this only if the directory is already made, which is this: find source -name '*.z' -exec cp {} destination \; But how can I make a new ...
3
votes
3answers
380 views

How to create a short path?

We have so many useful folders, which are in different path, for our working in Linux. For example : $ cd ~/Documents/Courses/EDX/physics2013/ $ cd ~/Documents/Company/OpenGL/Proj/... $ cd ...
2
votes
2answers
652 views

Check recursively if directories in a path exist

I want to check recursively if directories in a given path exist; if they do not, I want to create them. So if I have the path /dir1/dir2/dir3/dir4, if want to check first if dir1/ exists, and if not, ...
3
votes
2answers
59 views

Is there a way to condense ../.. parts of a path out programatically?

Say for example I have these types of paths to files in a script: /path/to/some/file/../../file1.txt Is there a command I can call such as readlink that will convert this path to its actual ...
23
votes
12answers
3k views

What's the most resource efficient way to count how many files are in a directory?

CentOS 5.9 I came across an issue the other day where a directory had a lot of files. To count it, I ran ls -l /foo/foo2/ | wc -l Turns out that there were over 1 million files in a single ...
2
votes
1answer
88 views

bash - inherit directory stack in children

If, in my newly created bash, I do: pushd foo pushd bar dirs -l -v I will get something like 0 bar 1 foo 2 old_dir If I then do bash dirs -l -v I get only 0 bar The same thing happens ...
3
votes
3answers
751 views

Merging two directory without copying the files

Let's say I have as follows : Folder A C1 file a A2 Folder B C1 B2 file b B3 What I want is to merge these two folders, which would give me : Folder C ...
1
vote
2answers
1k views

Find and move directories based on file type and date

I have a directory "New Movies" containing 200+ subdirectories "Movie Name (year)". The subdirectories "Movie Name (year)" contains a single video file (avi/mkv) and several related jpg/xml files. I ...
0
votes
2answers
974 views

How to create nested directory in a single command? [duplicate]

Apparently, it's not possible to create a nested directory in a single command? $ sudo mkdir x/y/z mkdir: cannot create directory 'x/y/z': No such file or directory
0
votes
2answers
59 views

chowning each home user to itself recursively

Okay so I have about 100 directories in my home folder each owned by the home user itself. Sometimes I have to manually replace some files as root so the permissions are disturbed and some files are ...
1
vote
3answers
59 views

Rename directory from within directory?

How would I rename a directory from within that directory? For example: ~/tmp $ rn tmp2 ~/tmp2 $ I can do that with: cd .. && mv tmp tmp2 && cd tmp2, but not sure how to make it ...
1
vote
2answers
3k views

cat files in current folder and all subfolders [duplicate]

I want to cat a file in current folder and all files in all subfolders (and subsubfolders). Here is my directory structure $ tree . ├── f │   └── foo └── yo I want to cat foo and yo. I've tried ...
1
vote
8answers
136 views

remove content of directory in elegant way

I would like to remove all content of the current working directory. How to do it in efficient and elegant way? I have several files, directories and some of them starts with dot, like: touch .abc; ...
1
vote
2answers
157 views

How to strip directory structure with command line (or script)

I have a large collection of files packed into a two-level directory structure with many, many, many folders. In other words, I have a folder with a great many subfolders in it. There are no ...
6
votes
3answers
4k views

How do I remove all sub-directories from within a directory?

This question is kind of a phase II to the first question I posted at here I have a directory that contains a bunch of sub-directories, .zip files, and other random files not contained within a ...
2
votes
3answers
849 views

Find directories that do not contain subdirectories

I'm writing script is ksh. Need to find all directory names directly under the current directory which contain only files, not subdirectories. I know that I could use ls -alR and recursively parse ...
3
votes
1answer
143 views

Passing all files of specific filetype in current and subdirectories

I have constructed an elaborate 500+ character command with many arguments and switches to autosign multiple PDF documents. I'm using JSignPDF and I'd like to use it's batch mode including the ...
4
votes
4answers
524 views

mkdir -p for files

mkdir -p will create a directory; it will also make parent directories as needed. Does a similar command exist for files, that will create a file and parent directories as needed?
7
votes
1answer
358 views

What is the significance of the dot in bash commands and how is it different from an asterisk?

I'm trying to understand the significance of the dot in bash and how it differs from an asterisk. Can someone please elaborate? For example, what's the difference between cp -ar /foo/. /foo2/ and cp ...
1
vote
1answer
115 views

What is the “~/” directory?

I'm trying to locate where some files are stored and I can easily browse to them via ssh by going to "cd ~/foldername", however, I have no idea what directory "~/" actually is. When I browse around ...
0
votes
1answer
159 views

Create a File with Touch on a specific Directory

I want a create a file with a specific extension(.done). I am using the command touch. Something Like: touch `basename $UNZIPFILE`".done" It's creating the file but in current directory. I want to ...
1
vote
3answers
276 views

I want to run commands like make, make install, python setup install without changing directories

I have written a script which will download software from the internet to the current user's home directory and then untar it. And then I have to make and make install it and in some software I have ...
5
votes
2answers
722 views

How to go back n levels of directories from the command line?

For example, I do the following cds in succession- cd /tmp cd /home/admin cd /root/ cd /some_other/directory Now I am in /some_other/directory. Now, is there anyway to go back to /tmp, the ...
1
vote
3answers
117 views

Restructuring directories into a hierarchy

I have the following type of folder structure containing thousands of folders. The folder names are as such with different names etc .test .test.subfolder .test.subfolder.subsubfolder .folder ...
0
votes
2answers
8k views

How to change the working directory of invoking shell using a script? [duplicate]

Possible Duplicate: changing current working dir with a script I am trying to create few scripts that would change the working directory of the main shell/terminal. Not able to do so. I ...
1
vote
6answers
4k views

ls: Do not show directories that match same pattern in wildcard searches, only files

Supposing I have something like the following, a typical business PC situation: drwxr-xr-x 1 whatever whoever 3 Oct 3 16:40 invoices2009 drwxr-xr-x 1 whatever whoever 4 Oct 3 16:40 ...
1
vote
2answers
2k views

Create and move to a directory in one command - unix [duplicate]

Possible Duplicate: Is there a one-liner that allows me to create a directory and move into it at the same time? I know this is a very basic question but I can't seem to figure out what to ...
9
votes
5answers
5k views

Creating numerous directories using mkdir

I would like to create many directories using mkdir. Each directory name will consist of a prefix (a string) and an index (an integer). Suppose that I would like the prefix to be "s" and the indices ...
3
votes
2answers
231 views

open a file using CDPATH and symlink

To quickly move around, I added a path to CDPATH that contains symlinks to different locations. I did this by adding the following line to .bashrc: export CDPATH=~/symlinks When working with ...
4
votes
1answer
237 views

xterm doesn't switch directory when it is moved

Recently I was very frustrated with xterm not behaving as expected. This is what I was doing: open xterm run the following commands: $ mkdir test_01 $ cd test_01/ $ echo 'a' > a $ cat a The ...
3
votes
6answers
828 views

Make directory copies using find

I have a directory with a bunch of subdirectories in it. Thus /usr/local/src/ccl/ccl-1.8/x86-headers$ ls elf gl gmp gnome2 gtk2 jni libc Each of these directories has a further subdirectory C ...
3
votes
3answers
16k views

How can I delete all files with a particular extension in a particular folder?

If I set the current/working directory (navigating to it using cd) to some particular directory and then type: rm *.xvg What will this command do? Is it true that the above command will only delete ...
8
votes
3answers
998 views

How can I cd to the previous/next sibling directory?

I often have a project directory layout like this project `-- component-a | `-- files... `-- component-b | `-- files... `-- component-c `-- files... I'll usually be working in one of the ...
7
votes
2answers
2k views

Stay at same working directory when changing to sudo

When working on the command line, I often change to sudo using sudo -i. However, my working directory changes automatically to /root. I never want to go there; I want to stay where I was! How can I ...
3
votes
1answer
885 views

creating abbreviations for commonly used paths

I am new to linux and was wondering whether it is possible to create abbreviations that can be used in terminal. I know about alias command, but am not sure whether that can be used for what I am ...
12
votes
4answers
1k views

Best method to collect a random sample from a collection of files

Suppose there is a directory holding 300 data files. I want to randomly select 200 of those files and move them into another directory. Is there a way to do that under Unix/Linux?
5
votes
4answers
2k views

Recursively rename subdirectories that match a regex

I have a media server with a folder called Series. (/media/Expansion2/Series/) In it, I have (surprise!) TV series. These are just the show names, e.g., /media/Expansion2/Series/The Big Bang Theory/ ...
44
votes
5answers
2k views

cd by just typing the directory's name?

I either had this somewhere 20 years ago or I dreamed about it. Basically: If if type blobblob I get blobblob: command not found Fair enough. I would like it so that when my shell gets those ...