I am curious if the following can be done in a file in unix. Let's say I have a flat file with the following data
AAA,12,2,,,,
BBB,3,1,,,,
CCC,,,,,
DDD,2,,,,,
SQQ,,,,,
ASJ,,3,5
I only want to capture the data with values into a new file. If the data contains the pattern ,,,,, as in... (2 Replies)
i have a pipe delimited file with records spread in many lines.
i need to extract those records
1)having X in beginning of that record
2)and having at least one Y in beginning before other record begins
eg:
X|Rec1|
A|Rec1|
Y|Rec1|
X|Rec2|
Y|Rec2|
Z|Rec3|
X|Rec4|
M|Rec4|
... (4 Replies)
Hi All,
I have 2 files (file1 & file2).
File1 and File2 have m and n columns respectively
I have to compare value in column1 of file1 with file2 and find line(s) from file2 matching column1 value.
The value can be in any column in the matching lines of file2.
The output should be... (10 Replies)
Hi all
I have a file with records starting with "Page" has a first column.
some of the records have some other junk characters has first column.
so pls help me to remove rows which is not having "Page" has a first column.
Thanks,
Baski (2 Replies)
Hi,
I need to find records with a search string from a file. Search strings are provided in a file.
For eg. search_String.txt file is like below
chicago
mexico
newark
sanhose
and the file from where the records need to be fetched is given below
src_file:... (1 Reply)
Hi,
I'm very new to these forums. I was wondering if someone could help an AWK beginner with a pattern matching
an actor to his appearance in movies, which would be stored as records. Let's say we have a database of 4 movies (each movie a record with name, studio + year, and actor fields with... (2 Replies)
My objective is to get the non matching records of previous day with current day.
eg, file1 contains
1 a
2 b
and file2 contains:
2 b
3 c
then expected output is
3 c¨
another example
file 1 contains:
1 a
2 b
file 2 contains
1 c
2 b (8 Replies)
In two previous posts (here) and (here), I received help from forum members comparing multiple fields across two files and selectively printing portions of each as output based upon would-be matches using awk. I had been fairly comfortable populating awk arrays with fields and using awk's special... (3 Replies)
Discussion started by: jvoot
3 Replies
LEARN ABOUT CENTOS
dump-utmp
DUMP-UTMP(8) GNU Accounting Utilities DUMP-UTMP(8)NAME
dump-utmp - print an utmp file in human-readable format.
SYNOPSIS
dump-acct [-r|--reverse] [-R|--raw] [-n|--num recs] [-h|--help] [ files]
DESCRIPTION
dump-acct filename prints a list of all logins. This list is usually written in /var/log/wtmp.
All fields are separated by vertical line. Fields are: user name, tty, type, id, pid, hostaddr, host, time.
OPTIONS -h, --help
Prints the usage string and default locations of system files to standard output and exits.
-n, --num recs
Number of lines to print.
-r, --reverse
Start printing from last records.
-R, --raw
Print raw records, not human-readable.
FILES
wtmp The system wide login record file. See wtmp(5) for further details.
SEE ALSO login(1), wtmp(5), init(8), sa(8).
AUTHOR
The GNU accounting utilities were written by Noel Cragg <noel@gnu.ai.mit.edu>.
This manual page was written by Ognyan Kulev <ogi@fmi.uni-sofia.bg> and updated by Daniel Baumann <daniel@debian.org> for the Debian
project (but may be used by others).
6.5.1 2006-04-22 DUMP-UTMP(8)