Commands by bakhru

Commands by bakhru (11)

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Update all Docker Images
This is sample output - yours may be different.
2

docker images --format "{{.Repository}}:{{.Tag}}" | grep ':latest' | xargs -L1 docker pull

bakhru · 2020-10-21 21:44:36 27
shell bash iterate number range with for loop
This is sample output - yours may be different.
3

for i in {1..10}; do echo $i; done

bakhru · 2019-07-28 01:09:35 0
Which processes are listening on a specific port (e.g. port 80)
This is sample output - yours may be different.
-2

netstat -nap|grep 80|grep LISTEN

bakhru · 2019-07-28 01:08:45 0
Automatically update all the installed python packages
This is sample output - yours may be different.
0

for i in `pip list -o --format legacy|awk '{print $1}'` ; do pip install --upgrade $i; done

bakhru · 2016-11-03 22:05:21 0
Look at logs startring at EOF
This is sample output - yours may be different.
-6

less +F <file>

bakhru · 2015-05-30 19:32:27 2
Grep only files matching certain pattern (Advanced)
This is sample output - yours may be different.
-11

find <path> |xargs grep <pattern>

bakhru · 2015-05-30 19:29:25 1
display a tab separated file as columns
This is sample output - yours may be different.
-11

cat <file>|column -t

bakhru · 2015-05-30 18:56:34 2
Colour part of your prompt red to indicate an error
This is sample output - yours may be different.
-2

export PS1='[\[\e[36;1m\]\[email protected]\[\e[32;1m\]\h \[\e[31;1m\]\w]# \[\e[0m\]'

bakhru · 2011-04-16 00:58:51 2
clear screen, keep prompt at eye-level (faster than clear(1), tput cl, etc.)
This is sample output - yours may be different.
-4

Ctrl+l

bakhru · 2011-04-13 21:15:37 2
df without line wrap on long FS name
This is sample output - yours may be different.
2

df -PH|column -t

bakhru · 2011-04-13 21:13:14 0
Upload file to remote server using SCP
This is sample output - yours may be different.
-7

scp /home/svnlabs.txt [email protected]:/home/

bakhru · 2010-01-22 21:19:37 1

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Install pip with Proxy

Installs pip packages defining a proxy

Bitcoin Brainwallet Base58 Encoder

A bitcoin "brainwallet" is a secret passphrase you carry in your brain. The Bitcoin Brainwallet Private Key Base58 Encoder is the third of three functions needed to calculate a bitcoin PRIVATE key from your "brainwallet" passphrase. This base58 encoder uses the obase parameter of the amazing bc utility to convert from ASCII-hex to base58. Tech note: bc inserts line continuation backslashes, but the "read s" command automatically strips them out. I hope that one day base58 will, like base64, be added to the amazing openssl utility.

seq (argc=2) for FreeBSD

find an unused unprivileged TCP port

Some commands (such as netcat) have a port option but how can you know which ports are unused?

Shows size of dirs and files, hidden or not, sorted.

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

Convert seconds to [DD:][HH:]MM:SS

Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

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"

Write comments to your history.

A null operation with the name 'comment', allowing comments to be written to HISTFILE. Prepending '#' to a command will *not* write the command to the history file, although it will be available for the current session, thus '#' is not useful for keeping track of comments past the current session.

list current processes writing to hard drive

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