Alright, so this was an uninteresting problem, I guess... no hits at all except for my own! But, I did solve PART of the problem, so for what its worth I am going to explain that... I am sure I am not the only person to make this mistake.
In my grep command, I was trying to reference a variable integer stored in $i.
Grep was reading the $ independently, as a regular expression meaning "at the end of the line" I think... but at any rate, it was NOT looking for the variable $i and passing that into the argument.
To work around this:
Code:
for i in {1..5}
do
echo $i; #to make sure the for loop was working as expected.
str="grep '^\[$i\]' ch25_footnotes.txt"; #I saved the whole thing as a string, which DOES
#interpret $i as a variable. If I were to echo that
#command, it would have a number there
#rather than a $i.
eval $str; #this actually runs the grep command
done
This works for the grep part... But I guess now the kink is in getting the for command to acknowledge the $n variable...
i am very new to UNIX
plz help me in this scenario
i have two text files as below
file1.txt
name=Rajakumar.
Discipline=Electronics and communication.
Designation=software Engineer.
file2.txt
name=Kannan.
Discipline=Mechanical.
Designation=CADD Design Engineer.
... (6 Replies)
Hi,
I want to replace the srting '; with ABCD'; in a file from line 1 to line 65. Is there any single command to do it without using awk
Thanks for quick reply
https://www.unix.com/images/misc/progress.gif (3 Replies)
To trim 3rd field in for all the lines of a file and replace the modified string in that particular field.
For example i have a file called Temp.txt having content
Temp.txt
-----------------
100,234,M1234
400,234,K1734
300,345,T3456
----------------
So the modified file output should... (4 Replies)
Can someone tell me how I can do this?
e.g:
Say file1.txt contains:
today is monday
the 22 of
NOVEMBER
2010
and file2.txt contains:
the
11th
month
of
How do i replace the word NOVEMBER with (5 Replies)
Hi
I am not the best scripter in the world and have run into a issue which you might be able to guide me on...
I have two files.
File1 :
A123, valueA, valueB
B234, valueA, valueB
C345, valueA, valueB
D456, valueA, valueB
E567, valueA, valueB
F678, valueA, valueB
File2:
C345,... (5 Replies)
Hi experts,
In my text file I have the following alot of lines like below.
input.k is as follows.
2684717 -194.7050476 64.2345581 150.6500092 0 0
2684718 -213.1575623 62.7032242 150.6500092 0 0
*INCLUDE
$# filename... (3 Replies)
Hi,
I want to achieve something similar to what described in another post:
The difference is I want to add the line if the pattern is not found.
File 1:
A123, valueA, valueB
B234, valueA, valueB
C345, valueA, valueB
D456, valueA, valueB
E567, valueA, valueB
F678, valueA, valueB
... (11 Replies)
I don't know if it's been asked before but seems i gave up seeking.
i have 2 files :
file1.txt
Monday XXXX
Tuesday XXXX
XXXX Wednesday
Thursday XXXX
XXXX is in every lines of file1.txt and i want to replace them with each line in file2.txt:
home
school
cinema
so output file is:
... (19 Replies)
HI
Can any one guide me how to achieve this task. I have 2 files
env.txt
#Configuration.Properties values
identity_server_url = http://identity.test-hit.com:9783/identity/service/user/register
randon_password_length = 6
attachment_file_path = /pass/temp/attachments/... (1 Reply)
Hi Everyone,
I have a requirement in ksh where i have a set of files in a directory. I need to search each and every file if a particular string is present in the file, delete that line and replace that line with another string expression in the same file.
I am very new to unix. Kindly help... (10 Replies)
Discussion started by: Pradhikshan
10 Replies
LEARN ABOUT OPENDARWIN
zgrep
ZGREP(1) General Commands Manual ZGREP(1)NAME
zgrep - search possibly compressed files for a regular expression
SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename...
DESCRIPTION
Zgrep is used to invoke the grep on compress'ed or gzip'ed files. All options specified are passed directly to grep. If no file is speci-
fied, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and
fed to grep.
If zgrep is invoked as zegrep or zfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, zgrep uses
it as the grep program to be invoked. For example:
for sh: GREP=fgrep zgrep string files
for csh: (setenv GREP fgrep; zgrep string files)
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO grep(1), egrep(1), fgrep(1), zdiff(1), zmore(1), znew(1), zforce(1), gzip(1), gzexe(1)ZGREP(1)