How to go to each directory in Bash?

How to go to each directory in Bash?

Use find command. In GNU find, you can use -execdir parameter: For recursivity try extended globbing ( **/) instead (enable by: shopt -s extglob ). For more examples, see: How to go to each directory and execute a command? at SO Option A is correct for folders with spaces in between.

How to execute command on all files in a directory?

Could somebody please provide the code to do the following: Assume there is a directory of files, all of which need to be run through a program. The program outputs the results to standard out. I need a script that will go into a directory, execute the command on each file, and concat the output into one big output file.

How to run Bash command on one file?

For instance, to run the command on 1 file: The following bash code will pass $file to command where $file will represent every file in /dir -maxdepth 1 argument prevents find from recursively descending into any subdirectories.

How to change the name of a file in Bash?

Note that find is recursive so you might want to use -maxdepth 1 to keep find in current working directory. -type f can be used to filter out regular files. If we’re just renaming doc to txt… The rename command is sed-like in searching. Obviously this won’t do anything to convert the format.

How to loop over a set of files in Bash?

The general syntax is as follows: You can also use shell variables: You can loop through all files such as *.c, enter: #!/bin/bash FILES = / path / to /* for f in $FILES do echo “Processing $f file…” # take action on each file. $f store current file name cat $f done

How to perform an action in every sub-directory?

Either one will work if there are spaces in directory names. or similar… find . -maxdepth 1 -mindepth 1 -type d : Only find directories with a maximum recursive depth of 1 (only the subdirectories of $1) and minimum depth of 1 (excludes current folder .)

How to read all the files in a directory?

I know there is for f in /var/files;do echo $f;done; The problem with that is it will spit out all the files inside the directory all at once. I want to go one by one and be able to do something with the $f variable.

How to traverse all subdirectories in Bash shell?

Although doubtless this can be done in Bash shell scripting, in the old days we used find [-maxdepth ] -exec ; to achieve this. You could do a man find and play around, perhaps until someone tells you how to do it in bash!

How to do something in subdirectories in Unix?

Do something in directories, sent output to a spool file and move on to next directory. Consider Main Dir = /tmp Sub Dir = A B C D (Four sub directories) It searches only the subdirectories of the directory /path/to/dir. Note that the simple example above will fail if the directory names contain whitespace or special characters.