Print lines present in first that match second variable. And ones that does not exist in second.
I have multi line input(var1) and reference(var2) variables.
How to capture lines not present in var2 but present in var1?
How to capture lines present var2 but not in var1?
Expected output:
I have this working by using two for loops(one to find invalid/valid and the other to find missing) and some if statements. I am not posting to avoid confusion and clutter.
I am sure there is a better way of doing this using awk or perl instead of writing basic loops and grep statements.
Last edited by kchinnam; 08-29-2016 at 11:49 PM..
Reason: updating requirements
I am trying to parse iostat output for io issues..
I want to print all lines including second occurance of 'extended' till EOF(end of file). Can we do that using awk or sed one liners or do we need a script for it? (1 Reply)
Ok so I can use awk to match a pattern and print the whole line with print $0. Is there any way to just tell awk to print every line of output when the pattern matches?
I'm having it wait for the word error and then print that entire line. But what I actually need to see is all the following... (9 Replies)
I am using Solaris, I want to print
3 lines before pattern match
pattern
5 lines after pattern match
Pattern is abcd to be searched in a.txt. Looking for the solution in sed/awk/perl. Thanks ..
Input File a.txt:
=================
1
2
3
abcd
4
5
6
7
8 (7 Replies)
Hi, I have this file.
close
block3c
block3b
block3a
open
close
block2b
block2a
open
close
block1a
open
and I need :
open
block3a
block3b
block3c
close (1 Reply)
I need to print the lines that do not match a pattern. I tried using grep -v and sed -n '/pattern/!p', but both of them are not working as I am passing the pattern as variable and it can be null some times.
Example
........ abcd......
.........abcd......
.........abcd......... (4 Replies)
I am getting the varible value from a grep command as:
var=$(grep "Group" File1.txt | sed 's/Group Name*//g;s/,//g;s/://g;s/-//g')
which leaves me the value of $var=xyz.
now i want to append $var value in the begining of all the lines present in the file. Can u please suggest?
Input file:
1... (10 Replies)
URGENT HELP IS NEEDED!!
I am looking to move matching lines (01 - 07) from File1 and 77 tab the matching string from File2, to File3.txt. I am almost done but
- Currently, script is not printing lines to File3.txt in order.
- Also the matching lines are not moving out of File1.txt
... (1 Reply)
Hello,
I have a file contains two columns. I need to print the lines after “xxx” so i'm trying to match "xxx" & cut the lines after that. I'm trying with the grep & cut command, if there any simple way to extract this please help me.
Sample file :
name id
AAA 123
AAB 124
AAC 125... (4 Replies)
I have input file as below I need to check for a pattern and if it is there in file then I need to print all the lines below BEGIN and END keyword. Could you please help me how to get this in AIX using sed or awk.
Input file:
ABC
******** BEGIN *****
My name is Amit.
I am learning unix.... (8 Replies)
Discussion started by: Amit Joshi
8 Replies
LEARN ABOUT PLAN9
env
ENV(3) Library Functions Manual ENV(3)NAME
env - environment variables
SYNOPSIS
bind #e /env
/env/var1
/env/var2
...
DESCRIPTION
The env device serves a one-level directory containing files with arbitrary names and contents. The intention is that the file name is the
name of an environment variable (see rc(1)), and the content is the variable's current value.
When a fork(2) system call creates a new process, both the parent and the child continue to see exactly the same files in the env device:
changes made in either process can be noticed by the other. In contrast, an rfork system call with the RFENVG bit set (see fork(2)) causes
a split: initially both process groups see the same environment files, but any changes made in one process group cannot be noticed by the
other. An rfork with RFCENVG splits and then clears the environment.
SEE ALSO rc(1), fork(2)SOURCE
/sys/src/9/port/devenv.c
BUGS
A write starting at an offset after the current extent of a file yields an error instead of zero filling.
ENV(3)