Hi All,
I have a below file:
==================
02:53 pravin-root
02:53 pravin-root
03:05 pravin-root
02:55 pravin1-root
02:59 pravin1-root
==================
How do I find the first and last value of column 1. For example, how do I find 02:53 is the first time stamp and 03:05 is... (3 Replies)
Hi,
I have two files. 1st file has 1 column (huge file containing ~19200000 lines) and 2nd file has 2 columns (small file containing ~6000 lines).
#################################
huge_file.txt
a
a
ab
b
##################################
small_file.txt
a 1.5
b 2.5
ab ... (4 Replies)
I have the below 2 files:
1) Third field from file1.txt should be compared to the first field of lookup.txt.
2) If match found then third field, file1.txt should be substituted with the second field from lookup.txt.
3)Else just print the line from file1.txt.
File1.txt:... (4 Replies)
Hi Friends,
I'm a great fan of this forum... it has helped me tone my skills in shell scripting. I have a challenge here, which I'm sure you guys would help me in achieving...
File A has a list of job ids and I need to compare this with the File B (*.log) and File C (extend *.log) and copy... (6 Replies)
Hi,
I need help with this-
input.txt :
L B white
X Y white
A B brown
M Y black
Read this input file and if 3rd column is "white", then add specific lines to another file insert.txt.
If 3rd column is brown, add different set of lines to insert.txt, and so on.
For example, the given... (6 Replies)
not getting anywhere with this
an xml file contains multiple clients set up with same tags, different values.
I need to parse the file for client foo, and change the value of tag "64bit" from false to true.
cat clients.xml
<Client type"FIX">
<ClientName>foo</ClientName>... (3 Replies)
The below bash connects to a site, downloads a file, searches that file based of user input - could be multiple (all that seems to work). What I am not able to figure out is how to display on the screen match found or no match found" and write a file to a directory (C:\Users\cmccabe\Desktop\wget)... (4 Replies)
I have a specific set (all ending with .bam) of downloaded files in a directory /home/cmccabe/Desktop/NGS/API/2-15-2016. What I am trying to do is use a match to $2 in name to rename the downloaded files. To make things a more involved the date of the folder is unique and in the header of name... (1 Reply)
I am trying to create a cronjob that will run on startup that will look at a list.txt file to see if there is a later version of a database using database.txt as the source. The matching lines are written to output.
$1 in database.txt will be in list.txt as a partial match. $2 of database.txt... (2 Replies)
I need to find two matches in the output from ps. I am searching with ps -ef |grep mysql for:
my.cnf
/bin/sh /usr/bin/mysqld_safe --defaults-file=/data/mysql/master/agis_core/etc/my.cnf
after this match I want to search back and match the hostname which is x number of lines back, above the... (2 Replies)
Discussion started by: bash_in_my_head
2 Replies
LEARN ABOUT MINIX
grep
GREP(1) General Commands Manual GREP(1)NAME
grep - search a file for lines containing a given pattern
SYNOPSIS
grep [-elnsv] pattern [file] ...
OPTIONS -e-e pattern is the same as pattern
-c Print a count of lines matched
-i Ignore case
-l Print file names, no lines
-n Print line numbers
-s Status only, no printed output
-v Select lines that do not match
EXAMPLES
grep mouse file # Find lines in file containing mouse
grep [0-9] file # Print lines containing a digit
DESCRIPTION
Grep searches one or more files (by default, stdin) and selects out all the lines that match the pattern. All the regular expressions
accepted by ed and mined are allowed. In addition, + can be used instead of * to mean 1 or more occurrences, ? can be used to mean 0 or 1
occurrences, and | can be used between two regular expressions to mean either one of them. Parentheses can be used for grouping. If a
match is found, exit status 0 is returned. If no match is found, exit status 1 is returned. If an error is detected, exit status 2 is
returned.
SEE ALSO cgrep(1), fgrep(1), sed(1), awk(9).
GREP(1)