Commands tagged awk grep sorted by votes

Commands tagged awk grep (9)

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renice by name
This is sample output - yours may be different.
4

renice +5 -p $(pidof <process name>)

0x2142 · 2010-01-19 22:16:24 4
Count the number of man pages per first character (a-z)

There once was a day I needed this info. Show Sample Output
This is sample output - yours may be different.
```
302:    a
399:    b
299:    c
...
```
1

for i in {a..z} ; do man -k $i |grep -i "^$i" |wc | awk 'BEGIN { OFS = ":"; ORS = "" }{print $1, "\t"}' && echo $i ;done

braak · 2010-07-15 11:41:06 218
Return IP Address
This is sample output - yours may be different.
0

ifconfig -a| awk 'BEGIN{FS="[ :]+"} /Bcast/{print $4}'

unixmonkey7109 · 2009-12-05 00:18:24 8
simple echo of IPv4 IP addresses assigned to a machine

ifconfig is dead, long-live iproute2 this also uses only awk to do the grepping and removal of CIDR notation Show Sample Output
This is sample output - yours may be different.
```
127.0.0.1
10.3.0.43
```
0

ip addr | awk '/inet / {sub(/\/.*/, "", $2); print $2}'

markdrago · 2010-03-04 14:21:18 7
What addresses are your applications talking to?

Shows which applications are making connections, and the addresses they're connecting to. Refreshes every 2 seconds (watch's default). Test on OSX, should work anywhere watch and lsof work. Show Sample Output
This is sample output - yours may be different.
```
         Finder         localhost:53255->localhost:26172
	imagent         mycomputer.foo.com:59319->qa-in-f125.1e100.net:5223
	imagent         mycomputer.foo.com:59339->bos-m015c-new-rdr2.blue.aol.com:443
	 Google         mycomputer.foo.com:58776->qc-in-f125.1e100.net:5222
	 Google         mycomputer.foo.com:60731->qa-in-f125.1e100.net:5222
	 Google         mycomputer.foo.com:60858->qc-in-f125.1e100.net:5222
	 Google         mycomputer.foo.com:60982->qc-in-f125.1e10
```
0

watch "lsof -i -P |grep ESTABLISHED |awk '{printf \"%15.15s \\t%s\\n\", \$1, \$9}'"

skarfacegc · 2013-04-03 02:04:11 6
Get user's full name in Mac OS X

Its possible to user a simple regex to extract de username from the finger command. The final echo its optional, just for remove the initial space Show Sample Output
This is sample output - yours may be different.
```
$ finger $(whoami) | egrep -o 'Name: [a-zA-Z0-9 ]{1,}' | cut -d ':' -f 2 | xargs echo                                                           2.1.2
Sebastian Webber
```
0

finger $(whoami) | egrep -o 'Name: [a-zA-Z0-9 ]{1,}' | cut -d ':' -f 2 | xargs echo

swebber · 2014-09-24 01:22:07 10
Get info `iostat -En` for all disks with Hardware Errors - works on Solaris and Solaris forks

This helps quickly get information for each disk that is seemingly having hardware issues.
This is sample output - yours may be different.
-1

iostat -En $(iostat -en|grep c#t|awk '$2 > 0 {print $NF}')

unixmonkey28207 · 2011-12-09 15:54:28 5
Get a text on a position on the file and store in a variable with a specific separator
This is sample output - yours may be different.
-3

TIMEUNIT=$( cat a | grep -n "timescale" | awk -F ":" '{ print $1 } ' )

conradojr · 2009-10-27 18:01:26 3
Return IP Address

grabs your local IP Address. Show Sample Output
This is sample output - yours may be different.
```
192.168.1.100
```
-3

ifconfig -a|grep Bcast:|cut -d\: -f2|awk '{print $1}'

metalx1000 · 2009-12-04 21:00:46 6

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check open ports without netstat or lsof

Find and copy scattered mp3 files into one directory

This command copies all filenames in the current dir and subdirs that end in .mp3 regardless of case (also matches .MP3 .mP3 and .Mp3) It copies all the files to the "mp3" folder in your home directory. If you want to see the files that are beeing copied, replace "cp {}" with "cp -v {}"

get you public ip address

Blacklist usb storage

Some times you may ban usb to protect thefting of your personal data. Blacklist the usb_storage module by adding blacklist usb_storage to /etc/modprobe.d/blacklist.conf. To load the module manually, $sudo modprobe usb_storage.

bulk rename files with sed, one-liner

Far from my favorite, but works in sh and with an old sed that doesn't support '-E'

Alert visually until any key is pressed

I learned a few things reading this command. But I did run into a few issues: 1. On systems that don't use GNU echo (e.g. macOS 10.14.5 Mojave), the e option may not be supported. In this case ANSI escape codes will echoed as text and the terminal will not flash, like this: \e[?5h\e[38;5;1m A L E R T Thu Jun 20 16:31:29 PDT 2019 2. Since the read command strips\ignores leading backslashes, if a user types the backslash character once in the loop, it will not break. Typing backslash twice in a loop will break as expected. 3. The foreground color is set to red (\e[38;5;1m) on every loop. This could be set once before we call while, and then reset once when the loop breaks. 4. Instead of resetting the foreground color when it breaks, the video mode is set back to normal (\e[?5l). This has the effect of leaving the terminal text red until it is manually reset. The alternative I'm proposing here addresses these issues. I tested it on macOS and Arch Linux.

Show Apt/Dpkg configuration

Shows all configurations to apt and dpkg, rarely changed, you probably still have the default configuration. Go ahead and explore your configuration if you dare, perhaps change your apt-cache directory, Dir::Cache "var/cache/apt/"; or the names of the log files.

List the size (in human readable form) of all sub folders from the current location

Run the last command as root

Useful when you forget to use sudo for a command. "!!" grabs the last run command.

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"

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Commands tagged awk grep (9)

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