Commands by goeltzec

Commands by goeltzec (2)

sorted by

Alias to list all functions loaded into bash (that don't start with _). Also shows file it's defined in.

Should run anywhere that Bash works.. Your mileage may vary. Show Sample Output
This is sample output - yours may be different.
```
cclock                       206  /home/myuser/.functions.sh
chmodd                       236  /home/myuser/.functions.sh
chmodf                       242  /home/myuser/.functions.sh
cmdfu                        41   /home/myuser/.functions.sh
command_not_found_handle     58   /etc/bash.bashrc
dequote                      148  /usr/share/bash-completion/bash_completion
dmesg_with_human_timestamps  252  /home/myuser/.functions.sh
```
-2

alias functions='shopt -s extdebug;declare -F | grep -v "declare -f _" | declare -F $(awk "{print $3}") | column -t;shopt -u extdebug'

goeltzec · 2021-11-22 06:49:36 0
tail from the last occurrence of a pattern to the end of the (log) file

I wanted a method to display the last run of my script from my log file. I had a pattern I could grep for to find the beginning of each run. This command line greps for that pattern in the log, finds the last occurrence and gives me the line number. Then I use the line number in tail to give me everything from that line number to the end of the log file. I tested this on Linux Mint (variant of Ubuntu) and on RHEL, but I suspect it will run many Linux systems.
This is sample output - yours may be different.
0

grep -n PATTERN /logs/somelog.log | cut -f1 -d: | tail -1 | xargs -I num tail -n +num /logs/somelog.log

goeltzec · 2016-07-29 15:47:26 0

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands

Check These Out

Convert encoding from cp1252 (MS Windows) to UTF-8 on source code files

merge vob files to mpg

Install pip with Proxy

Installs pip packages defining a proxy

Display duplicated lines in a file

Displays the duplicated lines in a file and their occuring frequency.

IFS - use entire lines in your for cycles

When you use a "for" construct, it cycles on every word. If you want to cycle on a line-by-line basis (and, well, you can't use xargs -n1 :D), you can set the IFS variable to .

Show how old your linux OS installtion is

..not guaranteed to always be accurate but fun to see how old you Linux installation is based on the root partitions file system creation date.

Count items in JSON array

Pipe any JSON to jq, then count with the appropiate expression and use the | length on the array

Set CDPATH to ease navigation

CDPATH tells the cd command to look in this colon-separated list of directories for your destination. My preferred order are 1) the current directory, specified by the empty string between the = and the first colon, 2) the parent directory (so that I can cd lib instead of cd ../lib), 3) my home directory, and 4) my ~/projects directory.

Kill any process with one command using program name

Somtime one wants to kill process not by name of executable, but by a parameter name. In such cases killall is not suitable method.

Multiplication table

The multiplication table for math study

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for:

» all commands
» commands with 3 up-votes (commandlinefu3)
» commands with 10 up-votes (commandlinefu10)
» commands by goeltzec