Commands by rockon (18)

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Display a block of text: multi-line grep with perl
-n reads input, line by line, in a loop sending to $_ Equivalent to while () { mycode } -e execute the following quoted string (i.e. do the following on the same line as the perl command) the elipses .. operator behaves like a range, remembering the state from line to line.

Determine next available UID
Typical usage would be in a script that would want the next open UID in a range (in this case 500-600)

Print just line 4 from a textfile
this method should be the fastest

download newest adminer and rename to it's version accordingly
If the version already downloaded. it will not download again

delete all trailing whitespace from each line in file

backup all your commandlinefu.com favourites to a plaintext file
Usage: clfavs username password num_favourite_commands file_in_which_to_backup

Print the contents of $VARIABLE, six words at a time
Print out the contents of $VARIABLE, six words per line, ignoring any single or double quotes in the text. Useful when $VARIABLE contains a sentence that changes periodically, and may or may not contain quoted text.

Get Shellcode from ARM Binaries
Getting shellcode from ARM binaries - @OsandaMalith

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" }

Send a binary file as an attachment to an email
The uuencode utility will encode your file so that it can be sent as an attachment to an email. It is part of the sharutils package in RHEL/CentOS/Fedora.


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