Removing blocks from a file


 
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Top Forums Shell Programming and Scripting Removing blocks from a file
# 8  
Old 12-02-2009
Bug

Tried this but got an error

(FILENAME=jcd.rays FNR=1) fatal: attempt to access field -2

--------

function abs(val) {
return val>0?val:-val
}

BEGIN { RS = ORS = ">" }


{ if ( abs( $1 - $(NF-2) ) < 38 ) { print } }


However if I use { if ( abs( $1 - $(NF) ) < 38 ) { print } } it works!!!! But it's not what I want. I need $(NF-2)

---------- Post updated at 04:40 PM ---------- Previous update was at 04:04 PM ----------

Think I got it now. Thanks everybody.Smilie Smilie

Last edited by kristinu; 12-02-2009 at 05:16 PM..
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lgroupmod(1)						      General Commands Manual						      lgroupmod(1)

NAME
lgroupmod - Modify an user group SYNOPSIS
lgroupmod [OPTION]... group DESCRIPTION
Modifies the user group with name group. OPTIONS
-A, --admin-add=list Add users in comma-separated list among group's administrators. -a, --admin-remove=list Remove users in comma-separated list from group's administrators. Removing users that are not currently among group's administra- tors silently succeeds. -g, --gid=gid Change group's group ID to gid. -i, --interactive Ask all questions when connecting to the user database, even if default answers are set up in libuser configuration. -L, --lock Lock group. This prevents users from using the group password with newgrp(1) to become a member of group. -M, --member-add=list Add users in comma-separated list among group's members. -m, --member-remove=list Remove users in comma-separated list from group's members. Removing users that are not currently among group's members silently succeeds. -n, --name=name Rename group to name. -P, --plainpassword=password Set group's password to password. Note that the password can be viewed while running lgroupmod using tools such as ps(1). -p, --password=encrypted Set group's password to the password represented by the hash encrypted. Note that the hash can be viewed while running lgroupmod using tools such as ps(1). -U, --unlock Unlock group. EXIT STATUS
The exit status is 0 on success, nonzero on error. libuser Jan 11 2005 lgroupmod(1)