Foreach bash line in file

The first two do not result in an error besides the undesired behavior , but the third is problematic as it executes:. A lot of bash commands can combine single character options, so -iname is the same as -i -n -a -m -e. And voila: your invalid option -- 'e' error!

Use command substitution instead of quotes to execute find instead of passing the command as a string:. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How to perform a for-each loop over all the files under a specified path?

Ask Question. Asked 8 years, 10 months ago. Active 1 year, 1 month ago. Viewed k times. Add a comment. Active Oldest Votes. Here is a better way to loop over files as it handles spaces and newlines in file names:! Matt Clegg 4 4 silver badges 16 16 bronze badges. I'm having trouble getting this to work when the script containing this snippet is called from within a cronjob reboot.

However, they will also work well with any other Linux distribution. In these methods, we will be showing you an example in which you can read each line from a file, and then you can either display it on the terminal or you can even store these lines in another file.

Let us take a look at both of these methods. First of all, you have to create a text file with some random data for the sake of the demonstration. Although, this text file can be created anywhere, however, it is highly recommended that you create it in the Home folder. For doing that, click on the File Manager icon highlighted in the image shown below:.

Now right-click anywhere in your Home folder and select the New Document option from the menu that appears. Then select the Empty Document option. Once an empty document has been created in your Home folder, provide the name of your choice for it followed by the.

In this example, we have named it as ForEachLine. Now create a Bash file in the same manner as you have created the text file in the Home folder except that this time, you have to provide its name followed by the.

Currently the code I am using under csh is like this:. It will read all the lines at once. Once the code is running, the new lines added to the to-read-file will not be read. Any idea how I can make it read the line once at a time? For some reason I have to work under csh for this case. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams?

Learn more. Asked 3 years, 10 months ago. Active 2 years, 8 months ago. Viewed 8k times. Currently the code I am using under csh is like this: foreach line cat to-read-file do things end It will read all the lines at once.