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Remove all but newest two files (Not a duplicate post)

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Top Forums Shell Programming and Scripting Remove all but newest two files (Not a duplicate post)
# 1  
Old 08-23-2018
Remove all but newest two files (Not a duplicate post)
Code:
TARGET_DIR='/media/andy/MAXTOR_SDB1/Ubuntu_Mate_18.04/'
REGEX='[0-9]{4}-[0-9]{2}-[0-9]{2}_[0-9]{2}:[0-9]{2}'   # regular expression that match to: date '+%Y-%m-%d_%H:%M'
LATEST_FILE="$(ls "$TARGET_DIR" | egrep "^${REGEX}$" | tail -1)"

find "$TARGET_DIR" ! -name "$LATEST_FILE" -type f -regextype egrep -regex ".*/${REGEX}$" -exec rm -f {} +
# not working find "$TARGET_DIR" ! -name "$LATEST_FILE" -type f -regextype egrep -regex ".*/${REGEX}$" -print -f {} +

The REGEX and find statement is complicated and I do not understand much of what is going on behind the scenes.

I would like to modify it so it deletes these type of files from the next dir.

Ubuntu_Scripts_2018-08-22-20-00.zip

/media/andy/MAXTOR_SDB1/Ubuntu_Mate_18.04/Script_Backups/
# 2  
Old 08-23-2018
try this:
Code:
REGEX='[0-9]{4}-[0-9]{2}-[0-9]{2}-[0-9]{2}-[0-9]{2}[.]zip'

# 3  
Old 08-23-2018
Misread then wrong answer, i apologize Smilie

Regards
Peasant
Last edited by Peasant; 08-23-2018 at 12:24 PM.. Reason: Lapsus
# 4  
Old 08-23-2018
Quote:
Originally Posted by vgersh99
try this:
Code:
REGEX='[0-9]{4}-[0-9]{2}-[0-9]{2}-[0-9]{2}-[0-9]{2}[.]zip'

This isn't deleting any files.

Code:
#!/bin/bash
TARGET_DIR='/media/andy/MAXTOR_SDB1/Ubuntu_Mate_18.04/Script_Backups/'
REGEX='[0-9]{4}-[0-9]{2}-[0-9]{2}-[0-9]{2}-[0-9]{2}[.]zip'
LATEST_FILE="$(ls "$TARGET_DIR" | egrep "^${REGEX}$" | tail -1)"

find "$TARGET_DIR" ! -name "$LATEST_FILE" -type f -regextype egrep -regex ".*/${REGEX}$" -exec rm -f {} +

Last edited by vgersh99; 08-23-2018 at 12:50 PM.. Reason: code tags, please!
# 5  
Old 08-23-2018
you need to work with the REGEX to match your file spec(s):
Code:
#!/bin/bash
TARGET_DIR='/media/andy/MAXTOR_SDB1/Ubuntu_Mate_18.04/Script_Backups/'
REGEX='Ubuntu_Scripts_[0-9]{4}-[0-9]{2}-[0-9]{2}-[0-9]{2}-[0-9]{2}[.]zip'
LATEST_FILE="$(ls "$TARGET_DIR" | egrep "${REGEX}$" | tail -1)"

find "$TARGET_DIR" ! -name "$LATEST_FILE" -type f -regextype egrep -regex ".*/${REGEX}$" -exec rm -f {} +

# 6  
Old 08-23-2018
Ok. How do I find out about those
[0-9]{4} parts?

I would be glad to read up, but don't know where to look.
# 7  
Old 08-23-2018
Quote:
Originally Posted by drew77
Ok. How do I find out about those
[0-9]{4} parts?

I would be glad to read up, but don't know where to look.
start with man egrep looking at the REGULAR EXPRESSIONS chapter.
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