Commands by eddieb

Commands by eddieb (3)

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Recursively search and replace old with new string, inside every instance of filename.ext

This is a slightly modified version of http://www.commandlinefu.com/commands/view/4283/recursive-search-and-replace-old-with-new-string-inside-files (which did not work due to incorrect syntax) with the added option to sed inside only files named filename.ext
This is sample output - yours may be different.
1

find . -type f -name filename.exe -exec sed -i "s/oldstring/oldstring/g" {} +;

eddieb · 2013-05-20 19:17:10 0
Show list of packages that depend upon 'packagename'

'yum deplist XXX' provides a list of packages that XXX depends on. This command provides a list of packages that depend upon XXX (package reverse dependencies) Show Sample Output
This is sample output - yours may be different.
```
> repoquery --whatrequires --installed --recursive unzip
unzip-0:6.0-1.el6.x86_64
virtualmin-base-0:1.0-63.rh.noarch
```
0

repoquery --whatrequires --installed --recursive packagename

eddieb · 2012-09-06 18:20:05 0
Easy way to display yum repo priorities

This probably only works without modifications in RHEL/CentOS/Fedora. Show Sample Output
This is sample output - yours may be different.
```
priority = 1 [asl-3.0]
priority = 1 [asl-3.0-testing]
priority = 1 [base]
priority = 1 [virtualmin]
priority = 1 [virtualmin-universal]
priority = 50 [epel]
```
0

sed -n -e "/^\[/h; /priority *=/{ G; s/\n/ /; s/ity=/ity = /; p }" /etc/yum.repos.d/*.repo | sort -k3n

eddieb · 2012-09-06 00:09:09 0

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Find and delete oldest file of specific types in directory tree

This works on my ubuntu/debian machines. I suspect other distros need some tweaking of sort and cut. I am sure someone could provide a shorter/faster version.

How to pull out lines between two patterns

This command will display all lines between 2 patterns: word-a and word-b useful for grepping command outputs from file

Convert Unix newlines to DOS newlines

The ctrl+v,ctrl+m portion represents key presses that you should do. If you do it successfully you should see a ^M character appear.

Insert the last argument of the previous command

for example if you did a: $ ls -la /bin/ls then $ ls !$ is equivalent to doing a $ ls /bin/ls

commentate specified line of a file

used when modify several configuration files with a single command

Ruby - nslookup against a list of IP`s or FQDN`s

This version uses host and no ruby.

print file without duplicated lines using awk

This create an array 'a' with wole lines. only one occurrence of each line - Not Get lines ++ !

Lists all listening ports together with the PID of the associated process

The PID will only be printed if you're holding a root equivalent ID.

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

df without line wrap on long FS name

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