Commands by rthemocap

Commands by rthemocap (6)

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lsof - cleaned up for just open listening ports, the process, and the owner of the process
This is sample output - yours may be different.
-1

alias oports="echo -e "User:\tCommand:\tPort:\n----------------------------" && lsof -i 4 -P -n | awk '/LISTEN/ {print $3, $1, $9}' | sed 's/ [a-z0-9\.\*]*:/ /' | sort -u -k 3 -n | xargs printf '%-10s %-10s %-10s\n'"

rthemocap · 2011-08-04 16:39:04 3
bash alias for sdiff: differ

Often I need to diff two files and want the output side by side for ease of reading and I don't want to see common lines. With this alias I just: differ file1 file2
This is sample output - yours may be different.
0

alias differ='sdiff --suppress-common-lines $1 $2'

rthemocap · 2010-10-12 16:38:34 3
Use the last command's output as input to a command without piping and bind to it to a key sequence in bash.

This is similar to using `!!` or In bash 4.1 it seems you can bind directly to a shell command, but I'm not running that version. Show Sample Output
This is sample output - yours may be different.
```
~: which tcptraceroute                                                    
/usr/bin/tcptraceroute  
                                                                                   
~: ls -al `fc -s`                          
which tcptraceroute
-rwxr-xr-x. 1 root root 38320 2009-07-28 19:10 /usr/bin/tcptraceroute 
```
0

bind '"\C-h": "\`fc\ \-s\`"'

rthemocap · 2010-08-16 17:58:16 6
Find default gateway
This is sample output - yours may be different.
8

ip route | awk '/default/{print $3}'

rthemocap · 2010-08-10 21:16:40 38
Recursive grep of all c++ source under the current directory
This is sample output - yours may be different.
1

find . -name '*.?pp' -exec grep -H "string" {} \;

rthemocap · 2010-07-14 15:10:23 4
Show the 1000*1000 and 1024*1024 size of HDs on system
This is sample output - yours may be different.
1

awk '/d[a-z]+$/{print $4}' /proc/partitions | xargs -i sudo hdparm -I /dev/{} | grep 'device size with M'

rthemocap · 2010-03-02 20:06:03 4

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kill process by name

Or even easier, if it's available: $ killall firefox I have no idea why you would want to rely on two unusual dependencies to do something that can be done a hundred ways from coreutils...

Kill all processes belonging to a user

Convert records in columns to csv

Get your Firefox bookmarks

Extracts yours bookmarks out of sqlite with the format: dateAdded|url

Pick a random line from a file

List programs with open ports and connections

I prefer to use this and not the -n variety, so I get DNS-resolved hostnames. Nice when I'm trying to figure out who's got that port open.

Change the primary group of a user

Rename files in batch

List latest 5 modified files recursively

The output format is given by the -printf parameter: %T@ = modify time in seconds since Jan. 1, 1970, 00:00 GMT, with fractional part. Mandatory, hidden in the end. %TY-%Tm-%Td %TH:%TM:%.2TS = modify time as YYYY-MM-DD HH:MM:SS. Optional. %p = file path Refer to http://linux.die.net/man/1/find for more about -printf formatting. ------------------------ sort -nr = sort numerically and reverse (higher values - most recent timestamp - first) head -n 5 = get only 5 first lines (change 5 to whatever you want) cut -f2- -d" " = trim first field (timestamp, used only for sorting) ------------------------ Very useful for building scripts for detecting malicious files upload and malware injections.

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