Sponsored Content
Top Forums UNIX for Dummies Questions & Answers sort by date and concatenate first three Post 302196748 by jim mcnamara on Monday 19th of May 2008 10:50:16 AM
Old 05-19-2008
Code:
#!/bin/ksh
cat $( ls -rt file* | tail -3 ) > newfile

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Concatenate date to file name

Hi, I have written a script to rename a file, but I can not add the current date (in YYYYMMDD-HHMM format) can you please look at this cript, and help? thanks, #!/usr/local/bin/tcsh -f set server = "$1" set user = "$2" if (-f $server) then \mv $server $server.Saar. endif (4 Replies)
Discussion started by: sierra_aar
4 Replies

2. Shell Programming and Scripting

Sort by Date

I'm looking to edit a file which contains various data including date.(ddmmyyyy) I want to sort by date and then count the number of different dates found Any ideas how to acheive this Thanks in advance. (2 Replies)
Discussion started by: Mudshark
2 Replies

3. Solaris

concatenate/sort/cut

I have the following requirement. 1. I have to concatenate the 10 fixed width files. 2. sort based on first 10 characters 3. after that i have remove first 10 chacters from the file. can you please tell me how to do it. Thanks in Advance Samba (1 Reply)
Discussion started by: samba
1 Replies

4. Shell Programming and Scripting

concatenate files sorted by date

I am a beginner in script writing, i tried to do the following I have a set of files sorted by date in the format YYMMDD.s and .x and .r I need to concatenate a header file to these sets of files so I used the following code echo "enter Swath number" read s echo "please enter first date and... (2 Replies)
Discussion started by: docaia
2 Replies

5. Shell Programming and Scripting

how to sort by the date

Hello World~ Please Help Me(BASH) input: dde,2007.8.25,891 dde,2007.8.23,356 dfe,2007.10.12,341 cba,2005.12.5,342 I wanna know how to sort by the date(2005.12.5) output: cba,2005.12.5,342 dde,2007.8.23,356 dde,2007.8.25,891 dfe,2007.10.12,341 Thanks in advance (3 Replies)
Discussion started by: lifegeek
3 Replies

6. Shell Programming and Scripting

sort the date

Hi All, Please help me to sort the date field which is in the format 2012-02-03 16:09:37.388... Platform: Red Hat linux Thanks in advance (2 Replies)
Discussion started by: jesu
2 Replies

7. Shell Programming and Scripting

Concatenate many files which contents the same date as part of name file

Gents, I have lot of files in a folder where each file name includes the date of generation, then I would like to merge all the files for each date in a complete file. list of files in forder. dsd01_121104.txt dsd01_121105.txt dsd01_121106.txt dsd03_121104.txt dsd03_121105.txt... (7 Replies)
Discussion started by: jiam912
7 Replies

8. Shell Programming and Scripting

Sort help: How to sort collected 'file list' by date stamp :

Hi Experts, I have a filelist collected from another server , now want to sort the output using date/time stamp filed. - Filed 6, 7,8 are showing the date/time/stamp. Here is the input: #---------------------------------------------------------------------- -rw------- 1 root ... (3 Replies)
Discussion started by: rveri
3 Replies

9. Shell Programming and Scripting

Sort by name and date

nawk '$1=="Date" {d=$(NF-2);next} $1=="Queue" {q=$NF;next} $1=="Forms"{print q, $NF, d}' OFS='|' printfile.log I have this script working. Please let me know how to sort by Queue and then Date. (4 Replies)
Discussion started by: Daniel Gate
4 Replies

10. Shell Programming and Scripting

Concatenate and sort to remove duplicates

Following is the input. 1st and 3rd block are same(block starts here with '*' and ends before blank line) , 2nd and 4th blocks are also the same: cat <file> * Wed Feb 24 2016 Tariq Saeed <tariq.x.saeed@mail.com> 2.0.7-1.0.7 - add vmcore dump support for ocfs2 * Mon Jun 8 2015 Brian Maly... (4 Replies)
Discussion started by: Paras Pandey
4 Replies
getusershell(3C)					   Standard C Library Functions 					  getusershell(3C)

NAME
getusershell, setusershell, endusershell - get legal user shells SYNOPSIS
#include <unistd.h> char *getusershell(void); void setusershell(void); void endusershell(void); DESCRIPTION
The getusershell() function returns a pointer to a legal user shell as defined by the system manager in the file /etc/shells. If /etc/shells does not exist, the following locations of the standard system shells are used in its place: /bin/bash /bin/csh /bin/jsh /bin/ksh /bin/pfcsh /bin/pfksh /bin/pfsh /bin/sh /bin/tcsh /bin/zsh /sbin/jsh /sbin/pfsh /sbin/sh /usr/bin/bash /usr/bin/csh /usr/bin/jsh /usr/bin/ksh /usr/bin/pfcsh /usr/bin/pfksh /usr/bin/pfsh /usr/bin/sh /usr/bin/tcsh /usr/bin/zsh /usr/xpg4/bin/sh The getusershell() function opens the file /etc/shells, if it exists, and returns the next entry in the list of shells. The setusershell() function rewinds the file or the list. The endusershell() function closes the file, frees any memory used by getusershell() and setusershell(), and rewinds the file /etc/shells. RETURN VALUES
The getusershell() function returns a null pointer on EOF. BUGS
All information is contained in memory that may be freed with a call to endusershell(), so it must be copied if it is to be saved. SunOS 5.10 30 Aug 2004 getusershell(3C)
All times are GMT -4. The time now is 04:57 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy