Alternatively, if you just want to keep the most recent 30 files (rather than files newer than 30 days), you can do the following:
Code:
rm `ls -t | head -30`
I have tried that and it deletes the most recent 30 files because the ls -t command sorts by date with newest first.
how can i sort by date when the oldest date is first?
Oh dear! Sorry about that! That's two erroneous pieces of advice in one thread, wow...
What I should have said was to do the following:
Code:
rm `ls -t | tail -30`
Or:
Code:
rm `ls -tr | head -30`
And (as I'm sure you know by now if you didn't already), test it someplace safe first
Hi Everyone,
This forum has been a great help to me as a new newbie in Unix. Thanks to you all.
My ? now is I have a log file that help me keep track of errors within my program. But the size of the log file keeps growing and I am wondering if there is any command that will help me to... (1 Reply)
Hi Xpert Out There
I have a lots of file in this path :
-rw-r----- 1 oracle dba 3954176 Dec 21 2006 1_2008.dbf
-rw-r----- 1 oracle dba 887808 Dec 21 2006 1_2009.dbf
-rw-r----- 1 oracle dba 143872 Dec 21 2006 1_2010.dbf
-rw-r----- 1 oracle dba ... (3 Replies)
Hello,
I have following log file.
alog.log
Oct 8 xxxxx
Oct 9 xxxxx
Oct 10 xxxxx
Nov 8 xxxxx
Nov 8 xxxxx
.
.
.
Jan 8 xxxxx
I need to delete all the lines which are having date entries older than 60 days. So If the current date is Jan 9 2011 then it should delete all the lines upto... (3 Replies)
Hi
I have a file with lines ending with a date in format dd/mm/yyyy see example below:
a|b|c|08/01/2011
d|a|e|31/11/2010
e|d|f|20/11/2010
f|s|r|18/01/2011
What I would like to do is delete all lines with a date older than 30 days.
With above example I should be left with a file... (5 Replies)
Hello gurus,
I am hoping someone can help me with the required code/script to make this work. I have the following file with records starting at line 4:
NETW~US60~000000000013220694~002~~IT~USD~2.24~20110201~99991231~01~01~20101104~... (4 Replies)
Hi,
I have a csv file with old data..i need to have only last 30 days from the current dateof data in the file.The fourth field in the file is a date field.i need to write a script to delete the old data by comparing the the fourth field with the (current date -30).I need to delete the rows in... (2 Replies)
let say i have list of file
PermissionsDirectoriesGroupSizeDateDirectory or file
drwx------2users4096Nov 2 19:51mailv
drwxr-s---35www 32768Jan 20 22:39public_htmlt
drwx------ 2 users 4096 Nov 2 19:51 mail
drwxr-s--- 35 www 32768 Jan 20 22:39 public_html
drwxr-s--- 35 www 32768 Jan... (3 Replies)
To delete log files content older than 30 days and append the lastest date log file date in the respective logs
I want to write a shell script that deletes all log files content older than 30 days and append the lastest log file date in the respective logs
This is my script
cd... (2 Replies)
Hello, can someone please suggest how to create an logrotate for this scenario. Need to delete all log file which are created more than 30 days ago, and all the log file have date stamp on it.
I dont want to create a cron job for this task.
here is the example
-rw-r--r-- 1 tomcat tomcat ... (2 Replies)
Hello All,
I have a directory containing of many .dat file, but with different naming conventions.
I want to delete files which are created before and on 10th September 2013.
I tried this command to see files which are are the files created before 10th September
find path/to/file -type... (6 Replies)
Discussion started by: nnani
6 Replies
LEARN ABOUT OSF1
head
head(1) General Commands Manual head(1)NAME
head - Displays the beginning of files
SYNOPSIS
Current Syntax
head [-c bytes] [-n lines] [file...]
Obsolescent Syntax
head [-lines] [file...]
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
head: XCU5.0
Refer to the standards(5) reference page for more information about industry standards and associated tags.
OPTIONS
The default count is 10. [Tru64 UNIX] Specifies the number of bytes to display. If the last byte written is not a newline character, a
newline character is appended to the output. Specifies the number of lines to display Works exactly as -n lines. Obsolescent.
OPERANDS
Path name of the input file. If you do not specify a file, head reads standard input.
DESCRIPTION
The head command copies the standard input to standard output, ending output of each file at the specified point.
NOTES
The obsolescent form is subject to withdrawal at any time.
EXIT STATUS
The following exit values are returned: Successful completion. An error occurred.
EXAMPLES
To display the first 5 lines of a file called test, enter: head -n 5 test To display the first ten lines of all files (except those with a
name beginning with a period), enter: head *
ENVIRONMENT VARIABLES
The following environment variables affect the execution of head: Provides a default value for the internationalization variables that are
unset or null. If LANG is unset or null, the corresponding value from the default locale is used. If any of the internationalization vari-
ables contain an invalid setting, the utility behaves as if none of the variables had been defined. If set to a non-empty string value,
overrides the values of all the other internationalization variables. Determines the locale for the interpretation of sequences of bytes
of text data as characters (for example, single-byte as opposed to multibyte characters in arguments and input files). Determines the
locale for the format and contents of diagnostic messages written to standard error. Determines the location of message catalogues for the
processing of LC_MESSAGES.
SEE ALSO
Commands: cat(1), more(1), pg(1), sed(1), tail(1)
Standards: standards(5)head(1)
08-10-2009
