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Shell Programming and Scripting
extracting block of lines from a file
Post 302584077 by vivek d r on Thursday 22nd of December 2011 05:42:41 AM
12-22-2011
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Greetings All!!
I have a very peculiar problem where I have to parse a big text file and extract useful data out of it with starting and ending block pattern matching.
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sample data
block1
sample data
start
useful data
end
sample data
block2
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All of us, including Zippy, our dog
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Testing All of us Zippy
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Hi all,
I need to extract some lines from a file based on a condition. For ex:
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Hi,
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i want to extract lines 5 and 7 from a txt file which contains nearly 20 entries how to do it
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hi all,
i searched in unix.com and accquired the following commands for extracting specific lines from a file ..
sed -n '16482,16482p' in.sql > out.sql
awk 'NR>=10&&NR<=20' in.sql > out.sql....
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Hi,
We have a file where we need to extract the lines of a file based on the first three characters of every line in that file.
Eg:
RAM hill station
SAM student
RAM rose
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RAM heaven
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Extracting specific lines of data from a file and related lines of data based on a grep value range?
Hi,
I have one file, say file 1, that has data like below where 19900107 is the date,
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consider i have two files
cat onlyviews1.sql
CREATE VIEW V11
AS
SELECT id,
name,
FROM
etc etc
WHERE etc etc;
CREATE VIEW V22
AS
SELECT id,
name,
FROM
etc etc
WHERE etc etc;
CREATE VIEW V33
AS (10 Replies)
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Hi UNIX Members,
I've been tasked with performing the following:
Extract a block of data in column form
#This data changes each time, therefore automating future procedures
Please Note the following:
line = reading a line from a file_list that leads to the data
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LEARN ABOUT HPUX
setresuid
setresuid(2) System Calls Manual setresuid(2) NAME
setresuid, setresgid - set real, effective, and saved user and group IDs SYNOPSIS
DESCRIPTION
sets the real, effective and/or saved user ID of the calling process. If the current real, effective or saved user ID is equal to that of a user having appropriate privileges, sets the real, effective and saved user IDs to ruid, euid, and suid, respectively. Otherwise, only sets the real, effective, and saved user IDs if ruid, euid, and suid each match at least one of the current real, effective, or saved user IDs. If ruid, euid, or suid is leaves the current real, effective or saved user ID unchanged. sets the real, effective and/or saved group ID of the calling process. If the current real, effective or saved user ID is equal to that of a user having appropriate privileges, sets the real, effective, and saved group ID to rgid, egid, and sgid, respectively. Otherwise, only sets the real, effective and saved group ID if rgid, egid, and sgid each match at least one of the current real, effective or saved group ID. If rgid, egid, or sgid is leaves the current real, effective or saved group ID unchanged. Security Restrictions Some or all of the actions associated with this system call require the privilege (CHSUBJIDENT). Processes owned by the superuser will have this privilege. Processes owned by other users may have this privilege, depending on system configuration. See privileges(5) for more information about privileged access on systems that support fine-grained privileges. RETURN VALUE
Upon successful completion, and return 0; otherwise, they return -1 and set to indicate the error. ERRORS
and fail if any of the following conditions are encountered: ruid, euid, or suid (rgid, egid, or sgid) is not a valid user (group) ID. None of the conditions above are met. AUTHOR
and were developed by HP. SEE ALSO
exec(2), getuid(2), setuid(2), privileges(5). setresuid(2)