Cumbersome in tcsh, you need an external command (sed)
Code:
#!/bin/tcsh
set head="trades_"
set tail=".out"
set nonomatch
foreach file ( ${head}*${tail} )
if ( -f "$file" ) then
set datepart=`echo "$file" | sed 's/^'"$head"'//; s/'"$tail"'$//'`
echo "$datepart"
endif
end
Better in bash/ksh/psh:
Code:
#!/bin/bash
head="trades_"
tail=".out"
for file in ${head}*${tail}
do
if [ -f "$file" ]
then
datepart=${file#$head}
datepart=${datepart%$tail}
echo "$datepart"
fi
done
Hi ,
I have written a shell script that takes the current date on the server and stores it in a file.
echo get /usr/home/data-`date '+%Y%d'`.xml> /usr/local/sandeep/GetFILE.ini
I call this GetFILE.ini file from an sftp program to fetch a file from /usr/home/ as location. The file is in... (3 Replies)
Hi,
I wanna to find files with specific date and time. I know this command: ls -ltr /system1/*.505 | grep 'Jan 18 09:00'.
I want the 'Jan 18 09:00' not hard coded, I want it coming from the system date and time. And I want the time varies from 09:00-09:05.
Is this possible without heavy... (3 Replies)
Hi,
I can use the following command to create a file with some name then underscore and then date appended to it in the format 'DD-MM-YYYY':
touch "newfile_`date '+%d-%m-%Y'`"
But it gives me error when I try with the similar command to create a file with the date format 'DD/MM/YYYY'. I... (4 Replies)
Hi,
This may sound a Basic, but please help
I Hava a date in the Given Format
yyyy_mm_dd
Start_date=2008_07_09 (This is a Fixed Date)
I need to Increment this Date in a For loop until it equals Current Date
For(Start_date<Current_date)
xxxxxxxxxxxxxxxxxxxxxxxxxxxx... (0 Replies)
Hi
I need to find the list of files in a directory and to do some specific operations based on the type of files.
suppose in a directory am having .dat , .log, .err, .rej file types. i need to filter out .dat and .log only which are older than six months.
i used the below query but the... (2 Replies)
I need a unix command which will find all the files greater that a particular date in the file name.
say for example I have files like(filenaming cov : filename.YYDDMMSSSS.txt)
abc.201206015423.txt
abc.201207013456.txt
abc.201202011234.txt
abc.201201024321.txt
efg.201202011234.txt... (11 Replies)
Dear all,
kindly i have some files with different dates i need to grep word from these files but i need to search in files with date 2012-12-02 not all files in this directory
do u have any command (4 Replies)
Hi,
I am looking to find files of a specific date.
I am on Sun Solaris so newermt doesnot work..
I thought of using mtime but not getting how to use it.
Please help me with this..
Regards
Abhinav (3 Replies)
Hi Unix Gurus,
I would like to rename several files in a Unix Directory . The filenames can have more than 1 underscore ( _ ) and the last underscore is always followed by a date in the format mmddyyyy. The Extension of the files can be .txt or .pdf or .xls etc and is case insensitive ie... (1 Reply)
i try to set linux date & time in specific format but it keep giving me error
Example :
date "+%d-%m-%C%y %H:%M:%S" -d "19-01-2017 00:05:01"
or
date +"%d-%m-%C%y %H:%M:%S" -d "19-01-2017 00:05:01"
keep giving me this error :
date: invalid date ‘19-01-2017 00:05:01'
Please use CODE tags... (7 Replies)
Discussion started by: umen
7 Replies
LEARN ABOUT DEBIAN
plan9-tail
TAIL(1) General Commands Manual TAIL(1)NAME
tail - deliver the last part of a file
SYNOPSIS
tail [ +-number[lbc][rf] ] [ file ]
tail [ -fr ] [ -n nlines ] [ -c nbytes ] [ file ]
DESCRIPTION
Tail copies the named file to the standard output beginning at a designated place. If no file is named, the standard input is copied.
Copying begins at position +number measured from the beginning, or -number from the end of the input. Number is counted in lines, 1K
blocks or bytes, according to the appended flag or Default is -10l (ten ell).
The further flag causes tail to print lines from the end of the file in reverse order; (follow) causes tail, after printing to the end, to
keep watch and print further data as it appears.
The second syntax is that promulgated by POSIX, where the numbers rather than the options are signed.
EXAMPLES
tail file
Print the last 10 lines of a file.
tail +0f file
Print a file, and continue to watch data accumulate as it grows.
sed 10q file
Print the first 10 lines of a file.
SOURCE
/src/cmd/tail.c
BUGS
Tails relative to the end of the file are treasured up in a buffer, and thus are limited in length.
According to custom, option +number counts lines from 1, and counts blocks and bytes from 0.
Tail is ignorant of UTF.
TAIL(1)