All Questions
47 questions
1
vote
1
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110
views
Bash: How to read the script when sourcing it
When bash is executing a script, ls -la /proc/<pid of bash>/fd shows "255 -> /path/to/script".
I think that bash reads the script via file discriptor 255, and executes the commands ...
- 609
0
votes
1
answer
821
views
How can I loop over all directories and subdirectories and find files with a specific extension, then run FFMPEG on them, then copy them to a new lib
Ive been researching all of today and yesterday trying to find a solution, none have worked for me so far.
For example: https://stackoverflow.com/questions/5784661/how-do-you-convert-an-entire-...
- 103
2
votes
3
answers
613
views
Move files to directory according to the content pattern matching
I would like to move files in existing directory files containing specific content to an existing or new directory and subdirectory by writing a script called fruit in ~/bin that moves them to dir/...
- 21
1
vote
1
answer
94
views
Delete sub-directories based on matching information from column
I want to keep only those sub-directories that are present in the corresponding directory from CSV file.
The file structure looks something like this:
100_folder/
├── folder_11
├── folder_25
├── ...
- 137
0
votes
1
answer
846
views
File is having lots of special characters. How to replace?
I have a file with record like:
CENTURY®KETTLEBELLS
COLEMANTT40°BAG
AlphaPro2¾TDLE
Lot™Stretch
M6×30
It shows normally in notepad files but in terminal when i cat it, it shows:
CENTURY▒KETTLEBELL
...
- 13
1
vote
3
answers
242
views
I want to write a bash script to separate characters from special characters?
I am new to bash. I want to write a bash script where I have a file, "file.txt".
I want to cut & paste normal characters to charecters.txt & special characters to special.txt.
...
- 11
2
votes
2
answers
201
views
How do I delete all directories with a certain file type in them?
I'm writing a command line script to 'unpack' folders with .svg files from downloads. I've copied the required files to a specific directory and now I need to delete all the directories with .svg ...
1
vote
1
answer
382
views
How to rename nested folders?
So I have a bunch of folders in the format of: .../course/year/... and I often reorganize them so that the format then changes to this: .../year/course/.... I've been meaning to learn how to write ...
- 11
2
votes
2
answers
139
views
How to find same filename but different content
I am trying to find the textfiles that have the same name but contain different content from two different directories.
The following is my code but it keeps crashing here
cati=`ls $1 | cat $i`
...
- 23
2
votes
3
answers
3k
views
How can I reliably determine if a file is an image file? [duplicate]
Currently I'm using the following command:
file image.jpg | cut -d " " -f 2
So far so good. It works on a file without an image extension too. So, I was wondering if there's another way to do this? I ...
- 23
-1
votes
3
answers
952
views
How do I create always 4 digit sequentially numbered and named file with shell script
I'm trying to create multiple *.txt files with 4-digit numerical names with leading zeros when needed. Script needs to stop when MAX varialbe is reached. This is using /bin/sh (not bash) but any ...
1
vote
2
answers
149
views
Generate the output of the file in the next line
I have 3 files ex- abc.txt, def.txt & xyz.txt. I've generate one shell script where I want to content of these 3 files should appear line wise like as below-
abc ---- 1 2 3 4 5 6 7
def ----...
- 123
2
votes
1
answer
103
views
I have an issue with a script that does file manipulation
Ive been working on a script that instantaneously detects files created in the Downloads directory then sorts them based on file extension. The issue with this however is that when downloading a file ...
- 61
12
votes
6
answers
17k
views
Checking for the existence of multiple directories
I want to check for the existence of multiple directories, say, dir1, dir2 and dir3, in the working directory.
I have the following
if [ -d "$PWD/dir1" ] && [ -d "$PWD/dir2" ] && [ -...
- 123
1
vote
2
answers
72
views
Comparison of two values from two list
I am trying to compare two strings. One value is coming from iptables and the other is from a file where I saved previous records.
I want to identify if there is a new user appear in iptables. If so ...
