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Thank you. this would be easier but there are several reasons to keep the current structure...

So my question is, without changing the current structure, any better way to loop more efficiently?...

Thanks for the response. Maybe I should be more clearer about the data structure.

in each of the directory, dir1, or dir2, etc, all contains 40 folders (1, 2, 3, .., 10, 20, 21, 22, 23, .., 29,...

I have five directories, dir1 to dir5
for each directory, I have all same number-named folders. There are four types of folders, {1..10}, {20..30}, { 40..50}, {60..70}

Now for each types of...

Yes, you are right with the red colored correction.

total input files is about 10-20 files

Yes, file* can be in different directory for file*_result.

Do you have any idea how to proceed...

I have a list of files in the same directory need to do the following


cut -d "=" f2 file1 > file1_result
cut -d "=" f2 file2 > file2_result
...

past file1_result file2_result .... >file_sum...

I like to do the following, please help! Thanks a lot
for f in seq(f1 f2 f3 g1 h1 t2)
do
cut -d "+" -f2 $f > $f.nums
paste ? # each loop will attach additional column to the created file...

Hi I have a question for creating a text string

I have a table and wanted to attach a column header for it, can i do this:

header = "id gender age phone"
cat header table > finaltable

Thanks

Thank you. I may not express very well

I still need $i (1, 2, 3, ...) inside of the loop for writing.

would this work?

for i in (1:5) #not sure this is the right way?
do
echo "processing...

Thank you for suggestion!

Additional question

I like to loop a list of files which named file1, file2, file3, file4, etc

if I like to loop them all over
for f in file1, file2, file3, file4...

I like to loop a list of files which named file1, file2, file3, file4, etc

if I like to loop them all over

for f in file1, file2, file3, file4
do
echo "processing" $f
done

how to use a...

for two txt files, f1 and f2, I like to do the following

grep "abcde" f1 > abcde$f1
grep "xyz" f1 > xyz$f1

can I use a loop to get this done? Thanks

for i in f1 f2
do
grep "abcde" $i >...

Here is what I need to do. Thanks a lot!

The folder structure is

under f1 and f2,

a list of subfolders, some contain folder name containing "abcde"
if there is folder containing...

Thank you very much!

Here is what I need to do. Thanks a lot!

The folder structure is

under f1 and f2,

a list of subfolders, some contain folder name containing "abcde"
if there is...

Here is my question in bash

for f in f1 f2
do
cd $f
cd ??? # i need to enter the two layers of sub folders then find the folder named "abcde" ?
cd .. # how to get out two layers...

Here is my question in bash

for f in f1 f2
do
cd $f
cd ??? # i need to enter the two layers of sub folders then find the folder named "abcde" ?
cd .. # how to get out two layers...