How can I delete those lines that starts with a certain letter?
abc def ghi
xyz abc def
ace gik moq
abe imq gxm
I want to delete the line that starts with "x". Thanks! (4 Replies)
Sir
I have a data file e.g. DATA31082009. This file consists of several data files appended to that file. The size of each data file is different. The first line of each file starts with "44". I want to grep data from "44" to the preceding line of next "44" and save it as a individual file.... (10 Replies)
Hi ,,
i have the below file...
D 2342135
B 214236
C argjlksd
V lskjrghaklsr
C slkrgj
B sdg4tsd
E aslkgjlkasg
i want to sort the lines into different files based on the starting letter of the line. so that i have different files for lines starting with a letter.
thanks (1 Reply)
Hi,
I have a log file (updates.log), and I want to hunt the file for any errors. Here's an example of the log file:
SQL> update <table1> set <value1> = '*****';
update <table1> set <value1> = '*****'
*
ERROR at line 1:
ORA-00942: table or view does not exist
Elapsed:... (4 Replies)
I have two files:
file-gene_families.txt that contains 30,000 rows of 30 columns. Column 1 is the ID column and contains the
Col1 Col2 Col3 ...
One gene-encoded CBPs ABC 111 ...
One gene-encoded CBPs ABC 222 ...
One gene-encoded CBPs ABC 212 ...
Two gene encoded CBPs EFC... (7 Replies)
I am trying to modify the "corestat v1.1" code which is in Perl.The typical output of this code is below:
Core Utilization
CoreId %Usr %Sys %Total
------ ----- ----- ------
5 4.91 0.01 4.92
6 0.06 ... (0 Replies)
I am trying to remove the last letter in a file and then multiply each line (which contained this letter) by 500. This is what I have:
1499998A
1222222A
1325804A
1254556
1235
9998
777
cat /tmp/listzz |gawk '{print $4}'|gawk '{gsub(//, ""); print } This removes the A... (1 Reply)
Hi, all
I have a csv file that I would like to remove duplicate lines based on 1st field and sort them by the 1st field. If there are more than 1 line which is same on the 1st field, I want to keep the first line of them and remove the rest. I think I have to use uniq or something, but I still... (8 Replies)
Good afternoon all,
I want to ask how to change some letter in my file with other letter in spesific line
eg.
data.txt
1
1
1
0
0
0
0
for example i want to change the 4th line with character 1.
How could I do it by SED or AWK.
I have tried to run this code but actually did not... (3 Replies)
Discussion started by: weslyarfan
3 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)