Hi,
I have a list of directories which contain old files that are to be deleted.
I put the list of all directories in a txt file and it is being read by a script
Iam searching for the files older than 60 days using mtime and then deleting it
But all the files are getting deleted... (3 Replies)
Can someone suggest on this script :
let's say the logs files are available for Jan 07, Dec 06, Nov 06, Oct 06
the script should identify the latest months logs, i.e Jan 07
it should then delete anything older than 2 months, which will be logs for Nov 06 & Oct 06. (40 Replies)
I have created a address book file. Insertion of Record (using >> symbol)and searching of record (using grep command) into the address book is also working correctly. Now I want to delete a record into a file. Any body can help me in this case without using sed and awk18 18.
Thanks and best... (24 Replies)
Discussion started by: murtaza
24 Replies
5. Forum Support Area for Unregistered Users & Account Problems
How to delete a particular character in a file and then removing the spaces created by that removal.I am working with a text file containing nucleotide sequences.
I have tried sed command but it replaces N with spaces.
example:I want to delete all the N without creating a space after its ... (1 Reply)
Hi,
I have file with footer (5records) at end of the file. I want to delete the footer as well as the empty records between the main records and footer record.(The gap between main records and Footer records is dynamic)
Example:
MainRecord1 "115494",","FAELD","CT","... (12 Replies)
Discussion started by: vsairam
12 Replies
8. Post Here to Contact Site Administrators and Moderators
Hi Everyone,
There are certain files under a folder 'ABC' and the entries for these files are there in another file(fname) under a different folder 'XYZ'. I want to compare the folder contents(ABC) with
the file(fname) contents and delete the mismatching / non-existing ones from the file,... (4 Replies)
Hi,
I have a file with four types of lines:
@HWUSI-EAS656_0022:8:1:175:376#0/1
CTCGACACGCTGGTGGAGATCCTCGGCCTGACCGAGGACGACCGGGCCATCTTCGAGCAGCGC
+
BBBBBBBA?AABB;<=B9<===AA1AA==>99===.9?:9A4A956%%%%%%%%%%%%%%%%%
I want to remove the first 6 characters of every second line. This means in... (10 Replies)
Discussion started by: s052866
10 Replies
LEARN ABOUT BSD
xargs
XARGS(1) General Commands Manual XARGS(1)NAME
xargs - construct argument list(s) and execute utility
SYNOPSIS
xargs [ -t ][[ -x ] -n number ][ -s size ][ utility [ arguments... ]]
DESCRIPTION
The xargs utility reads space, tab, newline and end-of-file delimited arguments from the standard input and executes the specified utility
with them as arguments.
The utility and any arguments specified on the command line are given to the utility upon each invocation, followed by some number of the
arguments read from standard input. The utility is repeatedly executed until standard input is exhausted.
Spaces, tabs and newlines may be embedded in arguments using single (`` ' '') or double (``"'') quotes or backslashes (``''). Single
quotes escape all non-single quote characters, excluding newlines, up to the matching single quote. Double quotes escape all non-double
quote characters, excluding newlines, up to the matching double quote. Any single character, including newlines, may be escaped by a back-
slash.
The options are as follows:
-n number Set the maximum number of arguments taken from standard input for each invocation of the utility. An invocation of utility will
use less than number standard input arguments if the number of bytes accumulated (see the s option) exceeds the specified size or
there are fewer than number arguments remaining for the last invocation of utility. The current default value for number is
5000.
-s size Set the maximum number of bytes for the command line length provided to utility. The sum of the length of the utility name and
the arguments passed to utility (including /dev/null terminators) will be less than or equal to this number. The current default
value for size is ARG_MAX - 2048.
-t Echo the command to be executed to standard error immediately before it is executed.
-x Force xargs to terminate immediately if a command line containing number arguments will not fit in the specified (or default)
command line length.
If no utility is specified, echo(1) is used.
Undefined behavior may occur if utility reads from the standard input.
The xargs utility exits immediately (without processing any further input) if a command line cannot be assembled, utility cannot be
invoked, an invocation of the utility is terminated by a signal or an invocation of the utility exits with a value of 255.
The xargs utility exits with a value of 0 if no error occurs. If utility cannot be invoked, xargs exits with a value of 127. If any other
error occurs, xargs exits with a value of 1.
SEE ALSO echo(1), find(1)STANDARDS
The xargs utility is expected to be IEEE Std 1003.2("POSIX") compliant.
June 6, 1993 XARGS(1)