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Top Forums Shell Programming and Scripting bash script for showing last users Post 302365153 by vassu on Monday 26th of October 2009 12:48:23 PM
Old 10-26-2009
bash script for showing last users

Hi! I'm new in scripting and I need some help with one simple script. I have to write a program that shows in a predetermined period (using "last" command), to draw up a list of users who have used the machine during this period. Each user to indicate how many sessions it has been during this period. Output must be sorted alphabetically by usernames (increasing alphabetically).

The code should be something like???:
Code:
cat lastfile | cut -c1-8 | egrep -v '(^reboot)|(^$)|(^wtmp a)|(^ftp)' | sort | uniq -c | sort -rn

But how to I predetermine the period and sort alphabetically(increasing)?

Regards,
Vassu

---------- Post updated at 06:48 PM ---------- Previous update was at 01:12 PM ----------

Really nobody can helpSmilie

Last edited by Franklin52; 10-26-2009 at 08:20 AM.. Reason: Please use code tags!
 

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slasrt.f(3)							      LAPACK							       slasrt.f(3)

NAME
slasrt.f - SYNOPSIS
Functions/Subroutines subroutine slasrt (ID, N, D, INFO) SLASRT Function/Subroutine Documentation subroutine slasrt (characterID, integerN, real, dimension( * )D, integerINFO) SLASRT Purpose: Sort the numbers in D in increasing order (if ID = 'I') or in decreasing order (if ID = 'D' ). Use Quick Sort, reverting to Insertion sort on arrays of size <= 20. Dimension of STACK limits N to about 2**32. Parameters: ID ID is CHARACTER*1 = 'I': sort D in increasing order; = 'D': sort D in decreasing order. N N is INTEGER The length of the array D. D D is REAL array, dimension (N) On entry, the array to be sorted. On exit, D has been sorted into increasing order (D(1) <= ... <= D(N) ) or into decreasing order (D(1) >= ... >= D(N) ), depending on ID. INFO INFO is INTEGER = 0: successful exit < 0: if INFO = -i, the i-th argument had an illegal value Author: Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Date: November 2011 Definition at line 89 of file slasrt.f. Author Generated automatically by Doxygen for LAPACK from the source code. Version 3.4.1 Sun May 26 2013 slasrt.f(3)
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