Ttdfjt

Should I simplify my writing in a foreign country?

What are the advantages of luxury car brands like Acura/Lexus over their sibling non-luxury brands Honda/Toyota?

Should I mention being denied entry to UK due to a confusion in my Visa and Ticket bookings?

Copy previous line to current line from text file

Are there terms in German for different skull shapes?

Checking if two expressions are related

Is Benjen dead?

Can you use "едать" and "игрывать" in the present and future tenses?

Does "Captain Marvel" contain spoilers for "Avengers: Infinity War"?

Notation: What does the tilde bellow of the Expectation mean?

Is there a word that describes the unjustified use of a more complex word?

Will 700 more planes a day fly because of the Heathrow expansion?

How long would it take for people to notice a mass disappearance?

Adding command shortcuts to /bin

How to pass hash as password to ssh server

What is the closest airport to the center of the city it serves?

What to use instead of cling film to wrap pastry

Can there be a single technologically advanced nation, in a continent full of non-technologically advanced nations?

When an imagined world resembles or has similarities with a famous world

Agena docking and RCS Brakes in First Man

What is a common way to tell if an academic is "above average," or outstanding in their field? Is their h-index (Hirsh index) one of them?

How can Internet speed be 10 times slower without a router than when using the same connection with a router?

Dangerous workplace travelling

Is there an age requirement to play in Adventurers League?

Deleting files older than 30 days based on filename as date

Remove files older than 5 days in UNIX (date in file name, not timestamp)Deleting many files except one typeBatch rename image files by age plus add date and variable to filenamefind and delete files older than specific days and have specific string in filenamesCommand that deletes all old files, folders and sub-foldersDelete sub-directories with YYYYMMDD in name older than N dayssynchronise with remote machine via http, and delete older filesMove files that have the same case-insensitive filenameFind and delete folders within directory that are older than x daysCopy files according the filename containing a future date in a specific format

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;

3

1

If I have a folder of files with their filenames as the date they were created:

2019_04_30.txt
2019_04_15.txt
2019_04_10.txt
2019_02_20.txt
2019_01_05.txt

How would I compare the files names against todays current date

$ date "+%Y_%m_%d"
>>> 2019_04_30

If the file names date is greater than 30 days then delete it. I would expect to end up with

2019_04_30.txt
2019_04_15.txt
2019_04_10.txt

I don't have to follow this naming convention, I could use a more suitable date format.

linux bash filenames date rm

share|improve this question

edited Apr 30 at 14:01

Rui F Ribeiro

42.6k1486146

asked Apr 30 at 10:50

Ari VictorAri Victor

1504

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You can use YYYY-MM-DD for your filenames, it would help when using "date" functions then
  
  – darxmurf
  Apr 30 at 11:09
  

  
  
  
  

add a comment | 

3

1

If I have a folder of files with their filenames as the date they were created:

2019_04_30.txt
2019_04_15.txt
2019_04_10.txt
2019_02_20.txt
2019_01_05.txt

How would I compare the files names against todays current date

$ date "+%Y_%m_%d"
>>> 2019_04_30

If the file names date is greater than 30 days then delete it. I would expect to end up with

2019_04_30.txt
2019_04_15.txt
2019_04_10.txt

I don't have to follow this naming convention, I could use a more suitable date format.

linux bash filenames date rm

share|improve this question

edited Apr 30 at 14:01

Rui F Ribeiro

42.6k1486146

asked Apr 30 at 10:50

Ari VictorAri Victor

1504

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You can use YYYY-MM-DD for your filenames, it would help when using "date" functions then
  
  – darxmurf
  Apr 30 at 11:09
  

  
  
  
  

add a comment | 

If I have a folder of files with their filenames as the date they were created:

2019_04_30.txt
2019_04_15.txt
2019_04_10.txt
2019_02_20.txt
2019_01_05.txt

How would I compare the files names against todays current date

$ date "+%Y_%m_%d"
>>> 2019_04_30

If the file names date is greater than 30 days then delete it. I would expect to end up with

2019_04_30.txt
2019_04_15.txt
2019_04_10.txt

I don't have to follow this naming convention, I could use a more suitable date format.

linux bash filenames date rm

share|improve this question

edited Apr 30 at 14:01

Rui F Ribeiro

42.6k1486146

asked Apr 30 at 10:50

Ari VictorAri Victor

1504

2019_04_30.txt
2019_04_15.txt
2019_04_10.txt
2019_02_20.txt
2019_01_05.txt

$ date "+%Y_%m_%d"
>>> 2019_04_30

2019_04_30.txt
2019_04_15.txt
2019_04_10.txt

share|improve this question

edited Apr 30 at 14:01

Rui F Ribeiro

42.6k1486146

asked Apr 30 at 10:50

Ari VictorAri Victor

1504

share|improve this question

edited Apr 30 at 14:01

Rui F Ribeiro

42.6k1486146

asked Apr 30 at 10:50

Ari VictorAri Victor

1504

edited Apr 30 at 14:01

Rui F Ribeiro

42.6k1486146

edited Apr 30 at 14:01

Rui F Ribeiro

42.6k1486146

asked Apr 30 at 10:50

Ari VictorAri Victor

1504

asked Apr 30 at 10:50

Ari VictorAri Victor

1504

2 Answers
2

active

oldest

votes

4

Here is a bash solution.

f30days=$(date +%s --date="-30 days")
for file in 20*.txt; do
 fdate=$(echo $file | tr _ -)
 fsec=$(date +%s --date=$fdate/.txt/)
 if [[ $fsec -lt $f30days ]]; then
 echo "rm $file"
 fi
done

I ended it with "echo rm $file" instead of really deleting your files, this will test the result before.

share|improve this answer

edited Apr 30 at 14:27

αғsнιη

18k103271

answered Apr 30 at 11:07

darxmurfdarxmurf

29410

add a comment | 

4

With zsh:

zmodload zsh/datetime
strftime -s start '%Y_%m_%d.txt' $((EPOCHSECONDS - 30*86400))
echo -E rm -i 2*.txt(e:'[[ $REPLY > $start ]]':)

Remove the echo -E when happy.

On a GNU system and with the GNU shell (bash), you could do something approaching with:

start=$(date -d '30 days ago' +%Y_%m_%d.txt)
list=()
shopt -s nullglob
for file in 2*.txt; do
 [[ $file > $start ]] && list+=("$file")
done
if (( $#list[@] > 0)); then
 echo -E rm -i "$list[@]"
fi

share|improve this answer

edited Apr 30 at 20:17

answered Apr 30 at 11:52

Stéphane ChazelasStéphane Chazelas

317k57601962

add a comment | 

Your Answer

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "106"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f516350%2fdeleting-files-older-than-30-days-based-on-filename-as-date%23new-answer', 'question_page');

);

Post as a guest

Name

Email

Required, but never shown

4

Here is a bash solution.

f30days=$(date +%s --date="-30 days")
for file in 20*.txt; do
 fdate=$(echo $file | tr _ -)
 fsec=$(date +%s --date=$fdate/.txt/)
 if [[ $fsec -lt $f30days ]]; then
 echo "rm $file"
 fi
done

I ended it with "echo rm $file" instead of really deleting your files, this will test the result before.

share|improve this answer

edited Apr 30 at 14:27

αғsнιη

18k103271

answered Apr 30 at 11:07

darxmurfdarxmurf

29410

add a comment | 

4

Here is a bash solution.

f30days=$(date +%s --date="-30 days")
for file in 20*.txt; do
 fdate=$(echo $file | tr _ -)
 fsec=$(date +%s --date=$fdate/.txt/)
 if [[ $fsec -lt $f30days ]]; then
 echo "rm $file"
 fi
done

I ended it with "echo rm $file" instead of really deleting your files, this will test the result before.

share|improve this answer

edited Apr 30 at 14:27

αғsнιη

18k103271

answered Apr 30 at 11:07

darxmurfdarxmurf

29410

add a comment | 

Here is a bash solution.

f30days=$(date +%s --date="-30 days")
for file in 20*.txt; do
 fdate=$(echo $file | tr _ -)
 fsec=$(date +%s --date=$fdate/.txt/)
 if [[ $fsec -lt $f30days ]]; then
 echo "rm $file"
 fi
done

I ended it with "echo rm $file" instead of really deleting your files, this will test the result before.

share|improve this answer

edited Apr 30 at 14:27

αғsнιη

18k103271

answered Apr 30 at 11:07

darxmurfdarxmurf

29410

f30days=$(date +%s --date="-30 days")
for file in 20*.txt; do
 fdate=$(echo $file | tr _ -)
 fsec=$(date +%s --date=$fdate/.txt/)
 if [[ $fsec -lt $f30days ]]; then
 echo "rm $file"
 fi
done

share|improve this answer

edited Apr 30 at 14:27

αғsнιη

18k103271

answered Apr 30 at 11:07

darxmurfdarxmurf

29410

edited Apr 30 at 14:27

αғsнιη

18k103271

edited Apr 30 at 14:27

αғsнιη

18k103271

answered Apr 30 at 11:07

darxmurfdarxmurf

29410

answered Apr 30 at 11:07

darxmurfdarxmurf

29410

4

With zsh:

zmodload zsh/datetime
strftime -s start '%Y_%m_%d.txt' $((EPOCHSECONDS - 30*86400))
echo -E rm -i 2*.txt(e:'[[ $REPLY > $start ]]':)

Remove the echo -E when happy.

On a GNU system and with the GNU shell (bash), you could do something approaching with:

start=$(date -d '30 days ago' +%Y_%m_%d.txt)
list=()
shopt -s nullglob
for file in 2*.txt; do
 [[ $file > $start ]] && list+=("$file")
done
if (( $#list[@] > 0)); then
 echo -E rm -i "$list[@]"
fi

share|improve this answer

edited Apr 30 at 20:17

answered Apr 30 at 11:52

Stéphane ChazelasStéphane Chazelas

317k57601962

add a comment | 

4

With zsh:

zmodload zsh/datetime
strftime -s start '%Y_%m_%d.txt' $((EPOCHSECONDS - 30*86400))
echo -E rm -i 2*.txt(e:'[[ $REPLY > $start ]]':)

Remove the echo -E when happy.

On a GNU system and with the GNU shell (bash), you could do something approaching with:

start=$(date -d '30 days ago' +%Y_%m_%d.txt)
list=()
shopt -s nullglob
for file in 2*.txt; do
 [[ $file > $start ]] && list+=("$file")
done
if (( $#list[@] > 0)); then
 echo -E rm -i "$list[@]"
fi

share|improve this answer

edited Apr 30 at 20:17

answered Apr 30 at 11:52

Stéphane ChazelasStéphane Chazelas

317k57601962

add a comment | 

With zsh:

zmodload zsh/datetime
strftime -s start '%Y_%m_%d.txt' $((EPOCHSECONDS - 30*86400))
echo -E rm -i 2*.txt(e:'[[ $REPLY > $start ]]':)

Remove the echo -E when happy.

On a GNU system and with the GNU shell (bash), you could do something approaching with:

start=$(date -d '30 days ago' +%Y_%m_%d.txt)
list=()
shopt -s nullglob
for file in 2*.txt; do
 [[ $file > $start ]] && list+=("$file")
done
if (( $#list[@] > 0)); then
 echo -E rm -i "$list[@]"
fi

share|improve this answer

edited Apr 30 at 20:17

answered Apr 30 at 11:52

Stéphane ChazelasStéphane Chazelas

317k57601962

zmodload zsh/datetime
strftime -s start '%Y_%m_%d.txt' $((EPOCHSECONDS - 30*86400))
echo -E rm -i 2*.txt(e:'[[ $REPLY > $start ]]':)

start=$(date -d '30 days ago' +%Y_%m_%d.txt)
list=()
shopt -s nullglob
for file in 2*.txt; do
 [[ $file > $start ]] && list+=("$file")
done
if (( $#list[@] > 0)); then
 echo -E rm -i "$list[@]"
fi

share|improve this answer

edited Apr 30 at 20:17

answered Apr 30 at 11:52

Stéphane ChazelasStéphane Chazelas

317k57601962

answered Apr 30 at 11:52

Stéphane ChazelasStéphane Chazelas

317k57601962

answered Apr 30 at 11:52

Stéphane ChazelasStéphane Chazelas

317k57601962