For instance, imagine a directory containing files A , B , and C. Software that doesn't handle this right could end up deleting preexisting files B and C instead even if you didn't have permission to do that. You should basically never use ls in scripts. It's silly anyway; the shell has already expanded the wildcard by the time ls runs. No need to use grep to get only.
But more importantly, one should not use the output of the ls command to parse file names. VictorZamanian, can you elaborate why we should not use the output of ls to parse filenames? Haven't heard of this before. I even saw a question here on SO claiming the reasons for not parsing the output of ls were BS and was very elaborative about it.
Have a look: unix. Noel Yap Noel Yap Also I read from the man page that -i is deprecated now and we should use -I insted. Doing that wouldn't handle file entries with spaces well. Show 2 more comments. Victoria Stuart Victoria Stuart 3, 2 2 gold badges 36 36 silver badges 28 28 bronze badges.
The accepted answer will not return files prefix with a. SnoopDogg SnoopDogg 2 2 silver badges 7 7 bronze badges. Please explain. I successfully ran the code back when I wrote the answer. What's to explain?
If you tested this back then, you were definitely not using a standard shell. I already pointed out the errors, and it should not be hard to look up what the correct syntax looks like, from some of the other answers here even. But check out this demo: ideone. If you think this is irrelevant because it's old, you don't understand how Stack Overflow works. This is regularly - probably daily - linked as the canonical answer for new users who post duplicates of this common question, but also gets probably x that traffic from Google searches.
Please edit to add additional details that will help others understand how this addresses the question asked. If you want to list the files in all the subfolders as well as the main folder , enter:. The lists can be quite long and we will create a file containing the list in order to be very easy.
You can rename multiple files at once using CMD. The dir command can also be used to search for specific files and directories by using wildcards. These letter codes include:. You may want a list of certain types of files such as pdf files. Here are some examples. The commands as written will make lists that include information about files such as size and date of creation.
Type the ls -R command to list all files and directories with their corresponding subdirectories down to the last file:. Type the ls -s command the s is lowercase to list files or directories with their sizes:. Type the ls -l command to list the contents of the directory in a table format with columns including:. Note that sizes are listed in bytes B , megabytes MB , gigabytes GB , or terabytes TB when the file or directory's size is larger than bytes.
Type the ls -a command to list files or directories including hidden files or directories. In Linux, anything that begins with a.
Type the ls -l -a or ls -a -l or ls -la or ls -al command to list files or directories in a table format with extra information including hidden files or directories:. Type the ls -t command to list files or directories and sort by last modified date in descending order biggest to smallest. You can also add a -r flag to reverse the sorting order like so: ls -tr :. Type the ls -S the S is uppercase command to list files or directories and sort by size in descending order biggest to smallest.
You can also add a -r flag to reverse the sorting order like so: ls -Sr :. You can use any of the flags discussed before like -la — the key point here is that the result will be outputted into a file and not logged to the command line. Then you can use the file as you see fit, or log the contents of the file with cat output. There are tons of other commands and combinations you can explore to list out files and directories based on your needs.
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