Commands by mobidyc

Commands by mobidyc (9)

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Equivalent to ifconfig -a in HPUX
This is sample output - yours may be different.
0

netstat -in

mobidyc · 2010-02-04 15:24:58 3
Mirror every lvol in vg00 in hp-ux 11.31
This is sample output - yours may be different.
1

find /dev/vg00 -type b |while read L; do lvextend -m 1 $L /dev/disk/<disk> ; done

mobidyc · 2010-02-04 15:18:26 3
A function to find the newest file in a directory
This is sample output - yours may be different.
3

newest () { find ${1:-\.} -type f |xargs ls -lrt ; }

mobidyc · 2010-02-04 14:52:17 8
view file content with echo

another replacement for cat.
This is sample output - yours may be different.
-2

echo "$(</etc/issue)"

mobidyc · 2009-09-14 09:44:35 34
send echo to socket network

this command will send a message to the socket 25 on host 192.168.1.2 in tcp. works on udp and icmp understand only IP address, not hostname. on the other side (192.168.1.2), you can listen to this socket and test if you receive the message. easy to diagnose a firewall problem or not.
This is sample output - yours may be different.
25

echo "foo" > /dev/tcp/192.168.1.2/25

mobidyc · 2009-09-12 16:48:05 12
find only current directory (universal)

you must be in the directory to analyse report all files and links in the currect directory, not recursively. this find command ahs been tested on hp-ux/linux/aix/solaris. Show Sample Output
This is sample output - yours may be different.
```
find . $ ! -name . -prune $ $ -type f -o -type l $
./bosinst.data
./smit.log
./lib
```
1

find . $ ! -name . -prune $ $ -type f -o -type l $

mobidyc · 2009-09-12 15:58:56 11
no more line wrapping in your terminal

works on all unices. Show Sample Output
This is sample output - yours may be different.
```
ps auxwww |nowrap
```
4

function nowrap { export COLS=`tput cols` ; cut -c-$COLS ; unset COLS ; }

mobidyc · 2009-09-11 15:07:00 13
search for a file in PATH

search argument in PATH accept grep expressions without args, list all binaries found in PATH Show Sample Output
This is sample output - yours may be different.
```
$ sepath noo
/usr/openwin/bin/ttsnoop
/usr/sbin/snoop
$ sepath ^ps$
/bin/ps
/usr/bin/ps
/usr/ucb/ps
```
-1

function sepath { echo $PATH |tr ":" "\n" |sort -u |while read L ; do cd "$L" 2>/dev/null && find . $ ! -name . -prune $ $ -type f -o -type l $ 2>/dev/null |sed "s@^\./@@" |egrep -i "${*}" |sed "s@^@$L/@" ; done ; }

mobidyc · 2009-09-11 15:03:22 5
Output files without comments or empty lines

better integration. works on all Unices works one bash and ksh. Show Sample Output
This is sample output - yours may be different.
```
$ catv /tmp/test
foo
$ cat /tmp/test |catv
foo
$ cat  /tmp/test
foo
# comment
#bar
```
1

function catv { egrep -v "^$|^#" ${*} ; }

mobidyc · 2009-09-11 14:58:47 3

What's this?

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Print a row of characters across the terminal

shorter than alternative

Send an email from the terminal when job finishes

Might as well include the status code it exited with so you know right away if it failed or not.

Save a file you edited in vim without the needed permissions (no echo)

Write a file you edited in Vim but that you do not have the permissions to write to (unless you use sudo.) Same as #1204 but without the echo to stdout that I find annoying.

port scan using parallel

It takes over 5 seconds to scan a single port on a single host using nmap $ time (nmap -p 80 192.168.1.1 &> /dev/null) real 0m5.109s user 0m0.102s sys 0m0.004s It took netcat about 2.5 minutes to scan port 80 on the class C $ time (for NUM in {1..255} ; do nc -w 1 -z -v 192.168.1.${NUM} 80 ; done &> /dev/null) real 2m28.651s user 0m0.136s sys 0m0.341s Using parallel, I am able to scan port 80 on the entire class C in under 2 seconds $ time (seq 1 255 | parallel -j255 'nc -w 1 -z -v 192.168.1.{} 80' &> /dev/null) real 0m1.957s user 0m0.457s sys 0m0.994s

get stdout to variable and stdout at sametime

Sometimes you want to write the script output to stdout but you need to send it to email. If you use: $ var="$( ls / )"; $ echo -e "$var"; works but, you need to wait the script terminate to bufferize then print the output var; With this way, you can use/work/print the output before the variable receive all the output content, then after it you can use the variable for anything else, like send email.

about how using internal separate field and store file content on variable

Find usb device in realtime

Using this command you can track a moment when usb device was attached.

ROT13 whole file in vim.

gg puts the cursor at the begin g? ROT13 until the next mov G the EOF

Rename files in batch

Print process run time, average CPU usage, and maximum memory usage on exit

Bash has a built-in time command which provides less functionality than the real time command. Thus we reference /usr/bin/time directly. Since the command isn't very easy to remember you could alias it to something like "cputime" or even just "time".

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