bash loop all files in directory, then loop lines of each file

-6

I have

urls1.txt
urls2.txt
urls3.txt

And so on.

How can I loop all files in this directory then loop each line of these files?

edited Jan 14 at 19:49

peterh

4,456103057

asked Jan 14 at 15:16

Born vs. Me

5

What would you want to do to each line of each file? It's very seldom necessary to read in lines from a file in a shell script. It's more common to process each file through awk or sed or some such tool. See e.g. unix.stackexchange.com/questions/169716

– Kusalananda
Jan 14 at 15:20

2

This seems simple enough to do even notwithstanding the truth of @Kusalananda's comment. What have you tried? How did it not work as expected or intended?

– DopeGhoti
Jan 14 at 15:21

add a comment |

-6

I have

urls1.txt
urls2.txt
urls3.txt

And so on.

How can I loop all files in this directory then loop each line of these files?

edited Jan 14 at 19:49

peterh

4,456103057

asked Jan 14 at 15:16

Born vs. Me

5

What would you want to do to each line of each file? It's very seldom necessary to read in lines from a file in a shell script. It's more common to process each file through awk or sed or some such tool. See e.g. unix.stackexchange.com/questions/169716

– Kusalananda
Jan 14 at 15:20

2

This seems simple enough to do even notwithstanding the truth of @Kusalananda's comment. What have you tried? How did it not work as expected or intended?

– DopeGhoti
Jan 14 at 15:21

add a comment |

-6

I have

urls1.txt
urls2.txt
urls3.txt

And so on.

How can I loop all files in this directory then loop each line of these files?

edited Jan 14 at 19:49

peterh

4,456103057

asked Jan 14 at 15:16

Born vs. Me

I have

urls1.txt
urls2.txt
urls3.txt

And so on.

How can I loop all files in this directory then loop each line of these files?

linux bash shell newlines

edited Jan 14 at 19:49

peterh

4,456103057

asked Jan 14 at 15:16

Born vs. Me

edited Jan 14 at 19:49

peterh

4,456103057

asked Jan 14 at 15:16

Born vs. Me

edited Jan 14 at 19:49

peterh

4,456103057

edited Jan 14 at 19:49

peterh

4,456103057

edited Jan 14 at 19:49

peterh

4,456103057

asked Jan 14 at 15:16

Born vs. Me

asked Jan 14 at 15:16

Born vs. Me

asked Jan 14 at 15:16

Born vs. Me

5

What would you want to do to each line of each file? It's very seldom necessary to read in lines from a file in a shell script. It's more common to process each file through awk or sed or some such tool. See e.g. unix.stackexchange.com/questions/169716

– Kusalananda
Jan 14 at 15:20

2

This seems simple enough to do even notwithstanding the truth of @Kusalananda's comment. What have you tried? How did it not work as expected or intended?

– DopeGhoti
Jan 14 at 15:21

add a comment |

5

What would you want to do to each line of each file? It's very seldom necessary to read in lines from a file in a shell script. It's more common to process each file through awk or sed or some such tool. See e.g. unix.stackexchange.com/questions/169716

– Kusalananda
Jan 14 at 15:20

2

This seems simple enough to do even notwithstanding the truth of @Kusalananda's comment. What have you tried? How did it not work as expected or intended?

– DopeGhoti
Jan 14 at 15:21

What would you want to do to each line of each file? It's very seldom necessary to read in lines from a file in a shell script. It's more common to process each file through awk or sed or some such tool. See e.g. unix.stackexchange.com/questions/169716

– Kusalananda
Jan 14 at 15:20

This seems simple enough to do even notwithstanding the truth of @Kusalananda's comment. What have you tried? How did it not work as expected or intended?

– DopeGhoti
Jan 14 at 15:21

add a comment |

1 Answer
1

active

oldest

votes

To answer your question as it is written you can do the following:

#!/bin/bash

for file in /path/to/files/*.txt; do
 # This will loop through each .txt file in the directory
 # setting the full file path to $file
 # I recommend adding the .txt if you know all your files
 # will have that extension otherwise the following is fine:
 # for file in /path/to/files/*; do
 while read -r line; do
 # This will loop through each line of the current file
 # and set the full line to the $line variable
 command "$line"
 done < "$file"
done

Explanations are in comments within the code

edited Jan 14 at 20:27

Ralf

3678

answered Jan 14 at 15:34

Jesse_b

12.4k23066

Thank you! VERY MUCH

– Born vs. Me
Jan 14 at 15:37

IT doesnt work ./test.sh: line 16: syntax error near unexpected token while' ./test.sh: line 16: while read -r line; do'

– Born vs. Me
Jan 14 at 15:53

@Bornvs.Me: sorry I forgot a do in the for loop, see if that fixes it.

– Jesse_b
Jan 14 at 15:55

2

It'll trim whitespace.

– Kusalananda
Jan 14 at 15:57

add a comment |

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1 Answer
1

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1 Answer
1

active

oldest

votes

To answer your question as it is written you can do the following:

#!/bin/bash

for file in /path/to/files/*.txt; do
 # This will loop through each .txt file in the directory
 # setting the full file path to $file
 # I recommend adding the .txt if you know all your files
 # will have that extension otherwise the following is fine:
 # for file in /path/to/files/*; do
 while read -r line; do
 # This will loop through each line of the current file
 # and set the full line to the $line variable
 command "$line"
 done < "$file"
done

Explanations are in comments within the code

edited Jan 14 at 20:27

Ralf

3678

answered Jan 14 at 15:34

Jesse_b

12.4k23066

Thank you! VERY MUCH

– Born vs. Me
Jan 14 at 15:37

IT doesnt work ./test.sh: line 16: syntax error near unexpected token while' ./test.sh: line 16: while read -r line; do'

– Born vs. Me
Jan 14 at 15:53

@Bornvs.Me: sorry I forgot a do in the for loop, see if that fixes it.

– Jesse_b
Jan 14 at 15:55

2

It'll trim whitespace.

– Kusalananda
Jan 14 at 15:57

add a comment |

To answer your question as it is written you can do the following:

#!/bin/bash

for file in /path/to/files/*.txt; do
 # This will loop through each .txt file in the directory
 # setting the full file path to $file
 # I recommend adding the .txt if you know all your files
 # will have that extension otherwise the following is fine:
 # for file in /path/to/files/*; do
 while read -r line; do
 # This will loop through each line of the current file
 # and set the full line to the $line variable
 command "$line"
 done < "$file"
done

Explanations are in comments within the code

edited Jan 14 at 20:27

Ralf

3678

answered Jan 14 at 15:34

Jesse_b

12.4k23066

Thank you! VERY MUCH

– Born vs. Me
Jan 14 at 15:37

IT doesnt work ./test.sh: line 16: syntax error near unexpected token while' ./test.sh: line 16: while read -r line; do'

– Born vs. Me
Jan 14 at 15:53

@Bornvs.Me: sorry I forgot a do in the for loop, see if that fixes it.

– Jesse_b
Jan 14 at 15:55

2

It'll trim whitespace.

– Kusalananda
Jan 14 at 15:57

add a comment |

To answer your question as it is written you can do the following:

#!/bin/bash

for file in /path/to/files/*.txt; do
 # This will loop through each .txt file in the directory
 # setting the full file path to $file
 # I recommend adding the .txt if you know all your files
 # will have that extension otherwise the following is fine:
 # for file in /path/to/files/*; do
 while read -r line; do
 # This will loop through each line of the current file
 # and set the full line to the $line variable
 command "$line"
 done < "$file"
done

Explanations are in comments within the code

edited Jan 14 at 20:27

Ralf

3678

answered Jan 14 at 15:34

Jesse_b

12.4k23066

To answer your question as it is written you can do the following:

#!/bin/bash

for file in /path/to/files/*.txt; do
 # This will loop through each .txt file in the directory
 # setting the full file path to $file
 # I recommend adding the .txt if you know all your files
 # will have that extension otherwise the following is fine:
 # for file in /path/to/files/*; do
 while read -r line; do
 # This will loop through each line of the current file
 # and set the full line to the $line variable
 command "$line"
 done < "$file"
done

Explanations are in comments within the code

edited Jan 14 at 20:27

Ralf

3678

answered Jan 14 at 15:34

Jesse_b

12.4k23066

edited Jan 14 at 20:27

Ralf

3678

edited Jan 14 at 20:27

Ralf

3678

edited Jan 14 at 20:27

Ralf

3678

answered Jan 14 at 15:34

Jesse_b

12.4k23066

answered Jan 14 at 15:34

Jesse_b

12.4k23066

answered Jan 14 at 15:34

Jesse_b

12.4k23066

Thank you! VERY MUCH

– Born vs. Me
Jan 14 at 15:37

IT doesnt work ./test.sh: line 16: syntax error near unexpected token while' ./test.sh: line 16: while read -r line; do'

– Born vs. Me
Jan 14 at 15:53

@Bornvs.Me: sorry I forgot a do in the for loop, see if that fixes it.

– Jesse_b
Jan 14 at 15:55

2

It'll trim whitespace.

– Kusalananda
Jan 14 at 15:57

add a comment |

Thank you! VERY MUCH

– Born vs. Me
Jan 14 at 15:37

IT doesnt work ./test.sh: line 16: syntax error near unexpected token while' ./test.sh: line 16: while read -r line; do'

– Born vs. Me
Jan 14 at 15:53

@Bornvs.Me: sorry I forgot a do in the for loop, see if that fixes it.

– Jesse_b
Jan 14 at 15:55

2

It'll trim whitespace.

– Kusalananda
Jan 14 at 15:57

Thank you! VERY MUCH

– Born vs. Me
Jan 14 at 15:37

IT doesnt work ./test.sh: line 16: syntax error near unexpected token while' ./test.sh: line 16: while read -r line; do'

– Born vs. Me
Jan 14 at 15:53

@Bornvs.Me: sorry I forgot a do in the for loop, see if that fixes it.

– Jesse_b
Jan 14 at 15:55

It'll trim whitespace.

– Kusalananda
Jan 14 at 15:57

add a comment |

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