Sort files in directory and then printing the content

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I need to write a script to sort filenames by the character that comes after the first "0" in the name. All the file names contain at least one 0. Then the script should print the content of each file by that order.

I know i need to use sort and cat. But i can't figure out what sort. This is as far as I've got.


#!/bin/bash

dir=$(pwd)


for n in $dir `ls | sort -u `  ; do

    cat $n
done;

dir=$(pwd)

for n in `ls -1 $dir | sort -t0 -k2`; do
   cat $n
done;

Print all the files, or a list of all the files, in a folder, How do I print a list of files in a folder? SORT command sorts the contents of a text file, line by line. sort is a standard command line program that prints the lines of its input or concatenation of all files listed in its argument list in sorted order. The sort command is a command line utility for sorting lines of text files.


Assuming that

  1. the first zero could be anywhere in the filename,
  2. there could be several files with the same name after the zero,
  3. you want to be able to handle any filename, including dotfiles and names containing newlines, and
  4. you have GNU CoreUtils installed (standard on common distros),

you'll need to do something crazy like this (untested):

find . -mindepth 1 -maxdepth 1 -exec printf '%s\0' {} + | while IFS= read -r -d ''
do
    printf '%s\0' "${REPLY#*0}"
done | sort --unique --zero-terminated | while IFS= read -r -d ''
do
    for file in ./*"$REPLY"
    do
        […]
    done
done

Explanation:

  1. Print all filenames NUL separated and read them back in to be able to do variable substitution on them.
  2. Remove everything up to and including the first zero in the filename and print that.
  3. Sort by the remainder of the filename, making sure to only print each unique suffix once.
  4. Process each file ending with the (now sorted) suffix.

System Directories, Which directory in the file structure holds the printer details? The contents of a folder never sort by date modified, they are always grouped by folders/files. And sometimes the folders are on top, other times the folders are at the bottom. Then I need to scroll to someplace in the middle of the window to find the latest modified items, in addition to the top of the window.


Take a look at this find + xargs that will correctly handle filenames with "funny characters":

find . -maxdepth 1 -type f -name '*0*' -print0 | sort -zt0 -k2 | xargs -0 cat

How to Print Files in a Sorted Order, / — Contains files and directories directly relating to users of the system, such as programs and supporting library files. To get started, open Explorer and browse to the folder directory above the folder that you want to get the directory listing for. If you want to print out the file and folder listing for C:\Test\MyTestFolder, then navigate to C:\Test, press the SHIFT key and then right-click on the MyTestFolder.


You could write a script that looks like this:

#/bin/bash

# using "shopt -s nullglob" so that an empty directory won't give you a literal '*'.
shopt -s nullglob

# get a sorted directory listing
filelist=$(for i in .*0* *0*; do echo "$i"; done | sort -t0 -k2)

IFS=$(echo -en "\n\b")
# iterate over your sorted list
for f in $filelist
do
        # just cat text files.
        file $f | grep text > /dev/null 2>&1
        if [ $? = 0 ]
        then
                cat $f
        fi
done

Test:

[plankton@localhost SO_scripts]$ ls -l
total 40
-rw-r--r-- 1 plankton plankton  10 Sep  9 10:56 afile0zzz
-rw-r--r-- 1 plankton plankton  14 Sep  9 10:56 bfile xxx0yyy
-rwxr-xr-x 1 plankton plankton 488 Sep  9 10:56 catfiles.sh
-rw-r--r-- 1 plankton plankton   9 Sep  9 10:56 file0123
-rw-r--r-- 1 plankton plankton   9 Sep  9 10:56 file0124
-rw-r--r-- 1 plankton plankton   7 Sep  9 10:56 file0a
-rw-r--r-- 1 plankton plankton   8 Sep  9 10:56 file0aa
-rw-r--r-- 1 plankton plankton   7 Sep  9 10:56 file0b
-rw-r--r-- 1 plankton plankton   9 Sep  9 10:56 file0bbb
-rw-r--r-- 1 plankton plankton  18 Sep  9 10:56 files*_0asdf
[plankton@localhost SO_scripts]$ ./catfiles.sh
. is not a text file
.. is not a text file
Doing catfiles.sh
#/bin/bash

# using "shopt -s nullglob" so that an empty directory won't give you a literal '*'.
shopt -s nullglob

# get a sorted directory listing

filelist=$(for i in .* *; do echo "$i"; done | sort -t0 -k2)

IFS=$(echo -en "\n\b")
# iterate over your sorted list
for f in $(for i in .* *; do echo "$i"; done | sort -t0 -k2)
do
        # just cat text files.
        file $f | grep text > /dev/null 2>&1
        if [ $? = 0 ]
        then
                echo "Doing $f"
                cat $f
        else
                echo "$f is not a text file"
        fi
done
Doing file0123
file0123
Doing file0124
file0124
Doing file0a
file0a
Doing file0aa
file0aa
Doing files*_0asdf
file with * in it
Doing file0b
file0b
Doing file0bbb
file0bbb
Doing bfile xxx0yyy
bfile xxx0yyy
Doing afile0zzz
afile0zzz

Updated as per PesaThe's suggestion of .*0* *0*.

Mac OS X Power Tools, How do I print a list of files in a folder Windows 10? Right-click the .exe file and select the “Run as administrator” option. After the app loads, open the “Setup” menu, and then choose the “Add to Directory Context Menu” option. Now, to generate a quick listing, just right-click a folder and choose the “Open in Directory List + Print” command from the context menu.


How to create a text file list of the contents of a folder, Learn how to reprint groups of documents and how to print multiple PDF files in order. Save your create a text file listing of the contents of a folder. Save the list​  You can save the contents of selected folder in a formatted TXT file for printing. From File menu and click “Select Directory” and browse for folder to select. After selecting directory a new “Save As” dialog box will appear, type the name and click “Save” button to save the detailed directory structure to the desired location.


Bioinformatics in Aquaculture: Principles and Methods, In addition to moving or aliasing to a file, if you drag the title bar icon to Folder. Listing. In Mac OS 9 and earlier, you could print the contents of a In order to get a properly sorted list, first switch to column view, then select all and copy. There are about 30 of these in a folder /history named for example bob.txt, tim.txt etc. Is it possible to make a script that sorts the content in all of the files in the directory, removes all the = signs, removes duplicates and saves the result in a new file for example bob.doc, tim.doc?


Mac OS X Unix 101 Byte-Sized Projects, This article describes how to create or print a list of files in a folder at a and then press ENTER, where filename is the name of the text file that