Regular expression query in AWK Post: 302075568

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I have a varable(var1) in a AWK script that contain data in the following format - I need to extract timestamp,priority and log message.I can extract these by using split function but i don't want to use it, since i want to extract it in one go. I have some difficulties in doing it using...

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Ive got a file with words and also numbers. Bla BLA 10 10 11 29 12 89 13 35 And i need to change "10,29,89,25" and also remove anything that contains actually words...

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I can print a line with an expression using this: awk '/regex/' I can print the line immediately before an expression using this: awk '/regex/{print x};{x=$0}' How do I print the line immediately before and then the line with the expression?

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need help guys for Regular expression in awk

Hello Experts, Please help me to cope with the following problem I ve patterens like Input Noptx(5) // remain the same -*Nop(3); Nop(9); --Nop(8); // remain the same d3 **---Nop(7); //remain the same d3 **---Nop(7); *--Nop(6); --**Nop(5); -Nop(4); Nop(3); - represents a space...

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Hello world, I was wondering if there is a nicer way to write the following code (in AWK): awk ' FNR==NR&&$1~/^m$/{tok1=1} FNR==NR&&$1~/^m10$/{tok1=1} ' my_file In fact, it looks for m2, m4, m6, m8 and m10 and then return a positive flag. The problem is how to define 10 thanks...

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awk regular expression

Hello, I have big files which I wanna filter them based on first column. first column should be one of these strings: chr2L || chr2R || chr3L || chr3R || chr4 || chrX and something like chr2Lh or chrY or chrM3L is not accepted. I used the following command: awk '{ if ($1=="chr2L" ||...

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Hi All, I would like to search a regular expression by passing as an i/p variableto AWK. For Example :: 162.111.101.209.9516 162.111.101.209.41891 162.111.101.209.9516 162.111.101.209.9517 162.111.101.209.41918 162.111.101.209.9517 162.111.101.209.41937 162.111.101.209.41951...

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ip-ntable

IP-NTABLE(8)							       Linux							      IP-NTABLE(8)

NAME

       ip-ntable - neighbour table configuration

SYNOPSIS

       ip [ OPTIONS ] address  { COMMAND | help }

       ip ntable change name NAME [ dev DEV ] PARMS

       PARMS := { thresh1 VAL | thresh2 VAL | thresh3 VAL | gc_int MSEC | base_reachable MSEC | retrans MSEC | gc_stale MSEC  | delay_probe MSEC |
	       queue LEN  | app_probs VAL | ucast_probes VAL | mcast_probes VAL  | anycast_delay MSEC | proxy_delay MSEC | proxy_queue LEN  |
	       locktime MSEC }

       ip ntable show [ dev DEV ] [ name NAME ]

DESCRIPTION

       ip ntable controls the parameters for the neighbour tables.

   ip ntable show - list the ip neighbour tables
       This commands displays neighbour table parameters and statistics.

       dev DEV
	      only list the table attached to this device.

       name NAME
	      only lists the table with the given name.

   ip ntable change - modify table parameter
       This command allows modifying table parameters such as timers and queue lengths.

       name NAME
	      the name of the table to modify.

       dev DEV
	      the name of the device to modify the table values.

EXAMPLES

       ip ntable show dev eth0
	   Shows the neighbour table (IPv4 ARP and IPv6 ndisc) parameters on device eth0.

       ip ntable change name arp_cache queue 8 dev eth0
	   Changes the number of packets queued while address is being resolved from the default value (3) to 8 packets.

SEE ALSO

       ip(8)

AUTHOR

       Manpage by Stephen Hemminger

iproute2							    20 Dec 2011 						      IP-NTABLE(8)

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