Delete a line in a file starting with - Perl one-liner Post: 302390929

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Delete the last line in a file using AWK or PERL

Is it possible to delete the last line in a file usin awk or perl?

2. Programming

How to delete N bytes from the starting of the file from a C function???

Hi, I want to delete the initial few lines (or even bytes) from a file. I want to do this from a C function & this is in Linux platform. The truncate & ftruncate is allowing me to delete bytes from the end only. Any linux C function calls or ideas or any suggestions?? I'm in a dead...

3. Shell Programming and Scripting

How to delete initial N bytes from the starting of the file using sed?

I want to delete initial N bytes of a file using sed. How can I do that?

4. Shell Programming and Scripting

how to delete text from line starting pattern1 up to line before pattern2?

My data is xml'ish (here is an excerpt) :- <bag name="mybag1" version="1.0"/> <contents id="coins"/> <bag name="mybag2" version="1.1"/> <contents id="clothes"/> <contents id="shoes"/> <bag name="mybag3" version="1.6"/> I want to delete line containing mybag2 and its subsequent...

5. Shell Programming and Scripting

Search & Replace regex Perl one liner to AWK one liner

Thanks for giving your time and effort to answer questions and helping newbies like me understand awk. I have a huge file, millions of lines, so perl takes quite a bit of time, I'd like to convert these perl one liners to awk. Basically I'd like all lines with ISA sandwiched between...

6. Shell Programming and Scripting

Delete entire line starting with space

Folks, How do i delete an entire line that starts with blank space? Ex: I have a file like below. abc def (10/12) ghi _________ jkl _________ mno pqr stu (11/12) vwx I need the ouput like abc def (10/12) ghi pqr stu (11/12) vwx Thanks for your elp in advance !!!!

7. Shell Programming and Scripting

Delete line - Perl one liner

Hi all, I need a Perl one liner which prints a newline into a .txt file, only where the line starts with "/mediawiki-1.19.0/". It should add the newline to the line before. My problem is, when I try to realize this (with my little knowledge :rolleyes: ) i come to the point where the // are...

8. UNIX for Dummies Questions & Answers

How to grep a line not starting with # from a file (there are two lines starting with # and normal)?

e.g. File name: File.txt cat File.txt Result: #INBOUND_QUEUE=FAQ1 INBOUND_QUEUE=FAQ2 I want to get the value for one which is not commented out. Thanks,

9. Shell Programming and Scripting

Checking and replacing first line in text file, one-liner?

Hello, I'm looking to check only the first line of a file to see if it is a format string, like # -*- coding: utf-8; mode: tcl; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -\*- vim:fenc=utf-8:ft=tcl:et:sw=2:ts=2:sts=2if the first line is anything else, insert the above string. I'd...

10. Shell Programming and Scripting

Delete all lines except a line starting with string

Shell : bash OS : RHEL 6.8 I have a file like below. $ cat pattern.txt hello txt1 txt2 txt3 some other text txt4 I want to remove all lines in this file except the ones starting with txt . How can I do this ?

LEARN ABOUT LINUX

npm-config

NPM-CONFIG(1)                                                                                                                        NPM-CONFIG(1)

NAME

       npm-config - Manage the npm configuration files

SYNOPSIS

         npm config set <key> <value> [-g|--global]
         npm config get <key>
         npm config delete <key>
         npm config list [-l] [--json]
         npm config edit
         npm get <key>
         npm set <key> <value> [-g|--global]

         aliases: c

DESCRIPTION

       npm gets its config settings from the command line, environment variables, npmrc files, and in some cases, the package.json file.

       See npm help 5 npmrc for more information about the npmrc files.

       See npm help 7 npm-config for a more thorough discussion of the mechanisms involved.

       The npm config command can be used to update and edit the contents of the user and global npmrc files.

Sub-commands
       Config supports the following sub-commands:

   set
         npm config set key value

       Sets the config key to the value.

       If value is omitted, then it sets it to "true".

   get
         npm config get key

       Echo the config value to stdout.

   list
         npm config list

       Show all the config settings. Use -l to also show defaults. Use --json to show the settings in json format.

   delete
         npm config delete key

       Deletes the key from all configuration files.

   edit
         npm config edit

       Opens the config file in an editor.  Use the --global flag to edit the global config.

SEE ALSO

       o npm help 5 folders

       o npm help 7 config

       o npm help 5 package.json

       o npm help 5 npmrc

       o npm help npm

                                                                   January 2019                                                      NPM-CONFIG(1)