Commands by hufman

Commands by hufman (4)

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Get the total length of all video / audio in the current dir (and below) in H:m:s

Uses soxi instead of mplayer
This is sample output - yours may be different.
0

soxi -D * | awk '{SUM += $1} END { printf "%d:%d:%d\n",SUM/3600,SUM%3600/60,SUM%60}'

hufman · 2017-04-08 17:37:03 0
Check CRL expiration time

Downloads a CRL file, determines the expiration time, and checks when it will expire Show Sample Output
This is sample output - yours may be different.
```
OK
```
0

[ `curl 'http://crl.godaddy.com/gds5-16.crl' 2>/dev/null | openssl crl -inform DER -noout -nextupdate | awk -F= '{print $2}' | xargs -I{} date -d {} +%s` -gt `date -d '8 hours' +%s` ] && echo "OK" || echo "Expires soon"

hufman · 2014-08-07 17:18:38 0
Find LVM Volume Group name for a block device
This is sample output - yours may be different.
0

cat /sys/block/md1/holders/dm*/dm/name | awk -F- '{print $1}' | sort -u

hufman · 2013-04-03 18:01:16 0
List LVM Volume Groups as an unprivileged user
This is sample output - yours may be different.
0

cat /sys/block/{*,*/*}/holders/dm*/dm/name | awk -F- '{print $1}' | sort -u

hufman · 2013-04-03 18:00:39 0

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Launch a command from a manpage

Launch a command from within a manpage, vim style. This is rather trivial, but can be very useful to try out the functions described in a manpage without actually quitting it (or switching to another console/screen/...).

Serve current directory tree at http://$HOSTNAME:8000/

Show the date of easter

ncal -e shows the date of Easter this year. ncal -e YYYY shows the date of Easter in a given year. ncal -o works the same way, but for Orthodox dates.

check open ports without netstat or lsof

a function to find the fastest free DNS server

Evoke from the command like as: $ timeDNS commandlinefu.com . This isn't too terribly practical, but it is a good code example of using subshells to run the queries in parallel and the use of an "anonymous function" (a/k/a "inline group") to group i/o. . I'm assuming you have already defined your local DNS cache as ${local_DNS}, (here, it's 192.168.0.1). . You do need to install `moreutils` to get `sponge`. . If you're willing to wait, a slower version w/o sponge, (and w/o sorting), is this: . DNS () { for x in "192.168.0.1" "208.67.222.222" "208.67.220.220" "198.153.192.1" "198.153.194.1" "156.154.70.1" "156.154.71.1" "8.8.8.8" "8.8.4.4"; do (echo -n "$x "; dig @"$x" "$*"|grep Query) ; done ; }

View Owner, Group & Permissions.

#Alias alias perm="stat -c '%n %U:%G-%a'" #Function perm() { for ll in $@; do stat -c "%n %U:%G-%a" "$ll"; done; }

find directory with most inodes/files

Find which directory in one filesystem that contains most inodes or files.

Display formatted routes

Rips CDs (Playstation, etc.) and names the files the same as the volume name

sort lines by length

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