4
votes
2answers
584 views

How do I delete all of a set of files in a random order?

I have a set of files, all that are named with the convention file_[number]_[abcd].bin (where [number] is a number in the range 0-size of drive in MB). i.e there is file_0_a.bin, file_0_b.bin, ...
8
votes
2answers
493 views

How to non-invasively test for write access to a file?

In a shell script, how do I easily and non-invasively test for write access to a file without actually attempting to modify the file? I could parse the output of stat, but that seems really complex, ...
2
votes
2answers
85 views

Shell script to merge files with same names

I have a directory of files such as: file.1111111_1.pdf file.1111111_2.pdf file.2222222_1.pdf file.2222222_2.pdf … file.1234567_1.pdf file.1234567_2.pdf … file.aaaaaaa_1.pdf file.aaaaaaa_2.pdf … ...
0
votes
2answers
41 views

check two partitions by selecting random files and running sha1 hashes on two files of each partition

A previous answer to a post mentions to run sha1 hashes on an images of a dd drive clone image. Another answer to that post suggests mounting the dd image an then compare if the sha1 hashes of ...
1
vote
2answers
64 views

finding latest date and date modified file and using sed

I have a series of files that contain a date and I need to get the file which has the latest date, and the latest date modification and pipe it to sed. I have tried various approaches and I cannot ...
4
votes
5answers
296 views

Clone directory tree structure and copy files to the corresponding directories modified after a specific date

I have a folder with more than 30 sub directories and I want to get the list of the files which was modified after a specified date(say sep 8 which is the real case) and to be copied with the same ...
2
votes
2answers
82 views

How to make my bash script be able to create an log file for a clamscan running in cron?

I've created an custom clamscan(clamav) in bash and when I run it in my shell everyhing is fine, but if I run it in a cron, it can't create the log file. This are the errors: ...
1
vote
1answer
64 views

dialog menu to display files and select one of them

I want to display all the files under /home directory in menu, and select only one of them. Then the script will print the full path of the selected file. I have created the following script. This ...
-1
votes
3answers
49 views

Delete oldest files from a directory if number exceeds seven

Daily downloads are stored in a directory. A script has been created which counts how many files reside in this folder. The part I am struggling with is deleting the oldest file in the directory if ...
0
votes
2answers
49 views

Remove by date in Shell Script

I have a shell script that creates a backup of a database. I would like to keep the last 7 days for files. What is the syntax I need to remove files in a directory by date or can I keep the newest 7 ...
0
votes
0answers
44 views

get time of file in inotifywait tool

for this script: inotifywait -m /path -e create -e moved_to | while read path action file; do echo "The file '$file' appeared in directory '$path' via '$action'" # do something with the ...
1
vote
1answer
49 views

TCL script try catch

I have a TCL script that sets a number of variables and reads several files. The last file it reads may contain sensitive information, so I need to make sure this file gets deleted even if an error ...
2
votes
2answers
105 views

find file, copy but with different name

I have files with random numbers in /home/user/files folder (every 4 days I have new ones). for example: john20 john25 john40 tom12 tom32 simon2 simon8 simon53 I want to take only last modified ...
0
votes
0answers
45 views

How to remove files except a list with names files [duplicate]

I need delete some .desktop files in various directories and a text file with a list of file names. I want to delete all these .desktop files except for those listed in my text file). Example $ ls ...
3
votes
5answers
180 views

efficient cross-os file size shell function

I'm looking for a simpler way to have a cross-os-unix file size check. I could use wc -c but I'm concerned the performance may suck on large files (I'm assuming it just counts chars and doesn't do a ...
0
votes
5answers
340 views

Move files to multiple folders [closed]

I've searched for this function, and there are lots of answers, but I haven't been able to find anything that works for me. I have a folder with about 30,000 files, and I want a terminal command or ...
1
vote
1answer
93 views

Compare file size of multiple files in an array [closed]

Scenario: Ftp site has 100s of files. Once a day, all the .gz files are copied to an AWS site then renamed. Only the date is kept in the file name. Some of the files corrupted during copy. A txt ...
6
votes
4answers
705 views

Delete spaces, hyphens, and underscores in filenames?

What is a good command to delete spaces, hyphens, and underscores from all files in a directory, or selected files? I use the following command with Thunar Custom Actions to slugify filenames: for ...
2
votes
4answers
131 views

Change to the last modified subdirectory of the current directory

I have an application which generates a couple of files in different directories at a regular interval and I need to check the latest files generated, i.e. the file which is generated in the most ...
-1
votes
1answer
22 views

A command showing if I have the right to perform writing?

I'm searching for a command which only says if the current user has r-rights (read) on the file passed as a parameter. This command could be something like haveIRights -x <file> and it has to ...
2
votes
3answers
274 views

Count files in a directory by extension

For the purpose of testing, I'd like count how many images files are inside a directory, separating each image file type by file extension (jpg="yes". This because later it will be useful for another ...
3
votes
2answers
159 views

fdupes - delete files after comparing two directories

I'm currently trying to solve an issue using fdupes. I'd like to compare two folders with each other, and afterwards delete all duplicate files within one of these directories. Example: Files are ...
3
votes
1answer
128 views

How do I use sudo to run multiple commands as another user within a portion of a script?

I'm trying to run the following: if [! -f .owner ]; then creator=$(whoami) sudo -u appuser ksh echo "$creator" >> .owner mkdir test1 test2 test3 exit fi However, the ...
3
votes
3answers
357 views

Moving latest files from one directory to another

I'm trying to move newest files from one directory to another directory. The find command finds the files but not moving them to another directory. The destination directory exists. $ cd ...
2
votes
1answer
41 views

move the search content to different directory

I am on Oracle Solaris. I am using: grep "searchstring" filename.* above command returns my search result. Now I want to move the all the files in above search result (all the files not the ...
3
votes
1answer
106 views

Compose and pipe a gzipped tar archive in one go

I'm trying to come up with an effective way to create a gzipped archive of various system partitions on Android, piping everything out to stdout so as to be able to encrypt it as it comes across via ...
0
votes
1answer
153 views

How do I cat a command file?

I have the output of the crontab -l stored in a file (crontab_file) with no extension. But whenever I try to cat it, I get errors saying command not found for multiple line of the file. Here is the ...
3
votes
2answers
129 views

Find files in directory with paired names

I'm running tests of a variable-size-and-contents test set. Data files are added and removed frequently. I'm looking for an automated way of gathering a file list. All files are in subdirectories of ...
0
votes
3answers
66 views

Looping the listing files in UNIX

I've given the command: ls -lrt and the listed files and directories are: drwxr-xr-x 4 root root 4096 Feb 2 2014 abc drwxr-xr-x 4 root root 4096 Feb 2 2014 cde drwxr-xr-x 4 root ...
3
votes
1answer
5k views

Cron job to delete files older than 3 days

I need to remove files older than 3 days with a cron job in 3 different directories. (these 3 directories are children of a parent directory /a/b/c/1 & /a/b/c/2 & /a/b/c/3) Can this be done ...
1
vote
2answers
77 views

Copying the newest files

We have a script running which picks up the report generated monthly on remote servers. I was trying to find a way to pick up the latest file from the remote servers only. Will find work in script ...
4
votes
3answers
174 views

Bash: Zipping/grouping files by common substring

I have about 100 files. They are named like this. 3000_ABCD_XXXXXXX.csv 3000_ABCD_YYYYYYY.csv 3000_ABCD_XYXYZYZ.csv 3000_EFGH_XXXXXXX.csv 3000_EFGH_YYYYYYY.csv 3000_EFGH_XYXYZYZ.csv ...
3
votes
5answers
148 views

Look if a folder has some files of certain extention

Lets say I have a file structure: $ cd /home/Desktop $ ls -d */ Abc/ Qwe/ Zxc/ Rty/ $ Now I want to iterate through every directory and look if they have any .pdf files. Could some one please ...
1
vote
2answers
363 views

Shell script to Capture the file name and size in csv file and add header on that file

I have a number of zip files in a certain folder. I want to capture file name and the size of the files in a CSV format in day wise and put it in crontab so I can report on a daily basis, and then ...
2
votes
2answers
226 views

Any way in Bash to write to a file every X seconds without closing it?

The hardware watchdog on my system needs a 0 written to /dev/watchdog at less than 60 seconds interval or it will fire. The file handle must be kept open however or the watchdog is then disabled. ...
3
votes
2answers
482 views

Read all files in folder and subfolders - progress and size

Command I have is: time find . -type f -print -exec cp {} /dev/null \; This command finds all files in current folder and subfolders, print the name of each file and copy each of them to /dev/null. ...
1
vote
4answers
322 views

How do i get the latest file from a list of files in a particular directory

I need to get the latest file from a list of files in a particular directory. When I run the script the first time I've copied the list of files in a particular directory to another directory. From ...
4
votes
1answer
323 views

Automatically detect when a file has reached a size limit

I would like to send an email when a file reach a certain size limit. The only way I thought of doing this is by doing a cronjob which will check the file size and send the email if the file is ...
1
vote
1answer
48 views

How to Test if a file has characters in it?

So i have a part of this code and U want it to output "No such player" if only the names file is empty, i've tried using the test -s command but it gives an output of 0 even if the file is empty or ...
1
vote
1answer
128 views

Unreadable backup directory on a USB drive

The title pretty much sums it up. I was editing a script I wrote some time ago to automatically backup the contents of my Raspberry Pi SD card, and in the course of editing, I missed a "/", and so ...
1
vote
2answers
111 views

Create file with specific formatting from directory contents

I am using Solaris and csh. In $home/test there are five files: a.txt, b.txt, c.txt, d.txt and e.txt. If I run % find $home/test/ -type f -print > ../filenames.txt that file will look like: ...
6
votes
2answers
697 views

Copying one file to multiple directories

I have a file that I want to copy to another 60 directories. The best way I can think of doing this is by making a bash script that has instructions to every folder like this: cp script.sh ...
0
votes
0answers
130 views

Editing metadata with bash

I have a bunch of photos(jpeg, bmp, png) that I have arranged in such a manner that the metadata is in html form in a separate file. I would like create some script to read this html file and edit ...
0
votes
3answers
4k views

How to write a Java Program / Shell Script combination such that you can call the Java program as a remote command and yet supply a local file?

This is related to How to execute a remote command on a local file? I wrote a simple Java program that prints the first line of a file - import java.io.BufferedReader; import ...
2
votes
2answers
136 views

Shell Scripting: how to use part of the file path as the file name?

I have a group of directories, each containing exactly 1 jpeg image, like so- /psds/folder1/image.jpg /psds/someotherfolder/picture.jpg /psds/yetanotherfolder/thumbnail.jpg What is the appropriate ...
2
votes
2answers
52 views

How to list all the files which were not created on Thursday

I need to delete old backups but I only want to keep Thursday Backups and delete the rest of the backups. Give me some kungfu tips. I'm on RHEL if that makes a difference.
10
votes
2answers
3k views

Fastest way to concatenate files

I've got 10k+ files totaling over 20GB that I need to concatenate into one file. Is there a faster way than cat input_file* >> out ? The preferred way would be a bash command, Python is ...
0
votes
1answer
97 views

Capture Error of LS to file [duplicate]

#!/bin/sh if [ $(ls sample01.log | wc -l) = 1 ] then echo "File Found" > lsOutput.log else echo "File Not Found" > lsOutput.log fi But if sample01.log is not already existing my code already ...
4
votes
1answer
134 views

measure amount of data read from /dev/random

background I have written a collection of bash scripts (most of them in German only yet but if you are interested; download the archive not the single scripts) which help users create high-quality ...
1
vote
4answers
873 views

move file by list in file

I have a file the contain filenames, for example: /tmp/list.txt (it is with the spaces at the start of each line): /tmp/file.log /app/nir/home.txt /etc/config.cust I want, using one line, ...