Find Total Number of Repetetions of numbers in a file
I have a file with a string Global=x , where x is a number in between lines of text. I want to calculate the total number of repetitions of the number ‘x’ extracted from the string “Global=x”…
Tag: grep
Converting a working command into shell script file which gets arguments
Hi my working command is: grep -l “my text” file*.ext|xargs ls -lart this command is very useful for me and I wanted to create a shell file which does it with fewer typing, like this: fn “my text” …
filter date from a partiicular column (from the last 3rd column) of a csv file. Also if the last 3rd column is empty then print lines
Input csv file is 23,54,one,tree,56,23,7/20/2017 17:00,iii,89 23,54,one,tree,56,23,7/20/2017 17:00,iii,89 23,54,one,tree,56,23,7/21/2017 17:00,iii,89 23,54,one,tree,56,23,7/30/2017 17:00,iii,89 Need …
Generating strings of words with space delimiters from cut statement
I am new to bash. When I run the following command: grep “type” /root/myFile | cut-d’=’ -f2 I get the following: 102 304 503 442 I want to store the contents of the first command into a variable …
Extracting a date from a log file and creating a file with unique dates
I would like to extract from a file the date with format DD.MM.YYYY, date is always in the first place, here an example of the entries 15.04.2016 13:13:30,228 INFO [wComService] [[email protected]/…
Prefix and suffix strings to each output line from command
I have ran into a problem trying to write a Bash script. When grep outputs, it returns (usually) many lines. I would like to prefix and suffix a string to each of these output lines. I would also …
Conditional Check for IPTables
I am trying to check whether specific rules in IPTables exists or not. #!/bin/bash if iptables -L -n | grep — “ACCEPT tcp — 0.0.0.0/0 0.0.0.0/0 tcp dpt:8880”; then …
How to remove a line from a tag in shell script?
We have an xml file (abc_lop.xml) in which I need to remove a line which is present in a tag: Below is an xml file, I have shorten it down as it is very big. <HELLO version="4.2" xmlns="http://…
How to grep the logs for a list of patterns and make a report out of it?
I have a C++ executable which scan some of my files and those files has some user id in it. After scanning is completed it generates below log file (abc.log) like this – INFO [0x7faff2b32a00] (/home/…
What is the purpose of those special characters in the sed command? [closed]
I found this bash command that creates a directory tree in your console window. I find it quite useful, but I don’t really understand how all of the special characters work. Could someone help break …