How to iteratively rename files in Bash - bash

I am trying to iterate over files in a folder, renaming them as foldername1, foldername2, etc. However, I'm getting an error which says that the mv isn't being used correctly.
So far my code looks like this:
FILES='(Full Path)/Macbeth/audio/'
for file in "$FILES"*
do
mv $file 'Macbeth'$i''
done
The final code should iterate through the files and rename them as, in this case Macbeth1.mp3, but I'm not sure how the Bash syntax works.

As suggested by Cyrus, the solution was to use the full path

Related

Rename files by matching key value from a text file bash

I have files in directories like:
./PBMCs/SRR1_1.fastq
./PBMCs/SRR1_2.fastq
./Monos/SRR2.fastq
./Monos/SRR3.fastq
I want to change the SRR# to a more informative name based on a file of key-value pairs:
SRR1 pbmc-1
SRR2 mono-1
SRR3 mono-2
And rename the files as:
./PBMCs/pbmc-1_1.fastq
./PBMCs/pbmc-1_2.fastq
./Monos/mono-1.fastq
./Monos/mono-2.fastq
All that I can think to do is loop through the list of original files and then loop through the lines of the name-change.txt file and replace the strings. However, I'm not sure how to implement this or if it's a good way to approach this.
Assuming all *.fastq are one subdirectory deep, this should work fine:
while read old new; do
for fastq in ./*/"$old"*.fastq; do
new_name=$new${fastq##*/"$old"}
echo mv "$fastq" "${fastq%/*}/$new_name"
done
done <name-change.txt
Remove echo if the output looks good.

Simple Bash Script: Change names of files to mimic directories

I have 312 directories labeled,
Ion_0001- Ion_0312.
In each directory I have a file light.out. I'd like to change the file names in each directory to, for example:
Ion_0001.out
I believe I also need to substitute the / so that my output DOESNT look this this:
Ion_0001/.out
Can any one help me out with a simple script??
This is what I've tried:
#!/bin/bash
for dir in */
do
cd $dir
for filename in *.out; do
mv $filename ${filename//$dir.out}
done
cd ..
done
Thanks!
Not a free coding service, but it's simple enough to not make it worth arguing about...
Assuming this file structure:
Ion_0001/
Ion_0001/light.out
Ion_0002/
Ion_0002/light.out
...
Run this code in a script or just at the command line:
for i in Ion_0*
do
mv "${i}/light.out" "${i}/${i}.out"
done
Resulting in this structure:
Ion_0001/
Ion_0001/Ion_0001.out
Ion_0002/
Ion_0002/Ion_0002.out
...
Is that what you were looking for?
for dir in Ion*/; do
mv "${dir}light.out" "${dir}${dir%/}.out"
done
The trailing slash in the Ion*/ pattern limits the results to directories only, but the slash will be present in the variable's value.

looping files with bash

I'm not very good in shell scripting and would like to ask you some question about looping of files big dataset: in my example I have alot of files with the common .pdb extension in the work dir. I need to loop all of them and i) to print name (w.o pdb extension) of each looped file and make some operation after this. E.g I need to make new dir for EACH file outside of the workdir with the name of each file and copy this file to that dir. Below you can see example of my code which are not worked- it's didn't show me the name of the file and didn't create folder for each of them. Please correct it and show me where I was wrong
#!/bin/bash
# set the work dir
receptors=./Receptors
for pdb in $receptors
do
filename=$(basename "$pdb")
echo "Processing of $filename file"
cd ..
mkdir ./docking_$filename
done
Many thanks for help,
Gleb
If all your files are contained within the .Repectors folder, you can loop each of them like so:
#!/bin/bash
for pdb in ./Receptors/*.pdb ; do
filename=$(basename "$pdb")
filenamenoextention=${filename/.pdb/}
mkdir "../docking_${filenamenoextention}"
done
Btw:
filenamenoextention=${filename/.pdb/}
Does a search replace in the variable $pdb. The syntax is ${myvariable/FOO/BAR}, and replaces all "FOO" substrings in $myvariable with "BAR". In your case it replaces ".pdb" with nothing, effectively removing it.
Alternatively, and safer (in case $filename contains multiple ".pdb"-substrings) is to remove the last four characters, like so: filenamenoextention=${filename:0:-4}
The syntax here is ${myvariable:s:e} where s and e correspond to numbers for the start and end index (not inclusive). It also let's you use negative numbers, which are offsets from the end. In other words: ${filename:0:-4} says: extract the substring from $filename starting from index 0, until you reach fourth-to-the-last character.
A few problems you have had with your script:
for pdb in ./Receptors loops only "./Receptors", and not each of the files within the folder.
When you change to parent directory (cd ..), you do so for the current shell session. This means that you keep going to the parent directory each time. Instead, you can specify the parent directory in the mkdir call. E.g mkdir ../thedir
You're looping over a one-item list, I think what you wanted to get is the list of the content of ./Receptors:
...
for pdb in $receptors/*
...
to list only file with .pdb extension use $receptors/*.pdb
So instead of just giving the path in for loop, give this:
for pdb in $receptors/*.pdb
To remove the extension :
set the variable ext to the extension you want to remove and using shell expansion operator "%" remove the extension from your filename eg:
ext=.pdb
filename=${filename%${ext}}
You can create the new directory without changing your current directory:
So to create a directory outside your current directory use the following command
mkdir ../docking_$filename
And to copy the file in the new directory use cp command
After correction
Your script should look like:
receptors=./Receptors
ext=.pdb
for pdb in $receptors/*.pdb
do
filename=$(basename "$pdb")
filename=${filename%${ext}}
echo "Processing of $filename file"
mkdir ../docking_$filename
cp $pdb ../docking_$filename
done

What is wrong in the for loop I use to create a file source=dest list?

I try to loop over the file I findin a relative path to build a list of relative path/soure file name=source file name
SHARED_LIB_PACK=""
for LIB in $(find ../level1/leve2/ -name "*.so*")
do
$SHARED_LIB_PACK=$SHARED_LIB_PACK" "$LIB"="${LIB##*/}
done
but as I run it, it complain :
line 6: = ../level1/level2/file.so.1.0=file.so.1.0: No such file or directory
Any help will be welcome
Firstly, variable assignment is done via:
FOO="bar"
and not
$FOO="bar"
The former will not work.
Secondly, your quotes seem to be in strange places:
SHARED_LIB_PACK=$SHARED_LIB_PACK" "$LIB"="${LIB##*/}
should probably be
LIB="${LIB##*/}"
SHARED_LIB_PACK="$SHARED_LIB_PACK $LIB"
or
SHARED_LIB_PACK="$SHARED_LIB_PACK ${LIB##*/}"

Create new files from existing ones but change their extension

In shell, what is a good way to duplicating files in an existing directory so that the result gives the same file but with a different extension? So taking something like:
path/view/blah.html.erb
And adding:
path/view/blah.mobile.erb
So that in the path/view directory, there would be:
path/view/blah.html.erb
path/view/blah.mobile.erb
I'd ideally like to perform this at a directory level and not create the file if it already has both extensions but that isn't necessary.
You can do:
cd /path/view/
for f in *.html.erb; do
cp "$f" "${f/.html./.mobile.}"
done
PS: This replaces first instance of .html. with .mobile., syntax is bash specific (let me know if you're not using BASH).

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