Commands using fc sorted by votes

Commands using fc (8)

sorted by

Rapidly invoke an editor to write a long, complex, or tricky command
This is sample output - yours may be different.
66

fc

deshawnbw · 2012-03-25 04:34:06 81
Edit the last or previous command line in an editor then execute

If you would like to edit a previous command, which might be long and complicated, you can use the fc (I think it stands for fix command). Invoke fc alone will edit the last command using the default editor (specified by $FCEDIT, $EDITOR, or emacs, in that order). After you make the changes in the editor, save and exit to execute that command. The fc command is more flexible than what I have described. Please 'man bash' for more information.
This is sample output - yours may be different.
11

fc [history-number]

haivu · 2009-03-20 15:09:43 47
Which fonts are installed?

See all fonts installed in your system Show Sample Output
This is sample output - yours may be different.
```
Andale Mono
Arab
Arial
Arial Black
AR PL UMing CN
AR PL UMing HK
AR PL UMing TW
AR PL UMing TW MBE
Balker
Bitstream Charter
Bitstream Vera Sans
Bitstream Vera Sans Mono
Bitstream Vera Serif ....
```
5

fc-list | cut -d ':' -f 1 | sort -u

kayowas · 2009-05-07 12:57:58 16
An alias to re-run last command with sudo. Similar to "sudo !!"

I didn't come up with this myself, but I always add this to my .bash_aliases file. It's essentially the same idea as running "sudo !!" except it's much easier to type. (You can't just alias "sudo !!", it doesn't really work for reasons I don't understand.) "fc" is a shell built-in for editing and re-running previous commands. The -l flag tells it to display the line rather than edit it, and the -n command tells it to omit the line number. -1 tells it to print the previous line. For more detail: help fc
This is sample output - yours may be different.
4

alias please='sudo $(fc -ln -1)'

suspenderguy · 2018-06-13 20:20:19 333
This will take the last two commands from bash_history and open your editor with the commands on separated lines
This is sample output - yours may be different.
2

fc -1 -2

wuseman1 · 2019-06-22 23:56:40 44
install package which provides some libraries in fedora

this command will install the packages which provides the libraries you need to link with, e.g. when you compile something needs opengl libraries: gcc -o testgl testgl.c -lGLEW -lGL -lGLU -lglut you can use `/usr/lib/libGLEW.so /usr/lib/libGL.so /usr/lib/libGLU.so /usr/lib/libglut.so'
This is sample output - yours may be different.
0

yum whatprovides /usr/lib/libXX1.so /usr/lib/libXX2.so | grep fc | sed 's/^$.*$-[0-9.]*-.*$/\1/' | sort | uniq | xargs yum -y install

laputa · 2011-03-07 04:51:35 6
Show your font name list
This is sample output - yours may be different.
0

fc-query ./fonts/* | grep "family:" | cut -d '"' -f 2 | sort -u

kokoye2007 · 2014-11-16 22:12:07 8

List all font names installed in the system. Useful for TeX. Show Sample Output

fc-list | cut -d':' -f2 | sort -u

smarx · 2015-12-29 12:23:11 11

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

Start a command on only one CPU core

This is useful if you have a program which doesn't work well with multicore CPUs. With taskset you can set its CPU affinity to run on only one core.

Install pip with Proxy

Installs pip packages defining a proxy

Get a process's pid by supplying its name

Detect illegal access to kernel space, potentially useful for Meltdown detection

Based on capsule8 agent examples, not rigorously tested

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" }

Single use vnc-over-ssh connection

This command 1. SSH into a machine 2. Tunnels VNC port to your local computer ("-L 5900:localhost:5900") 3. Runs a single use vnc server ("x11vnc -safer -localhost -nopw -once -display :0") 4. Goes into the background ("-f") 5. Runs VNC viewer on the local computer connecting to the remote machine via the newly created SSH tunnel ("vinagre localhost:5900")

Redirect a filehandle from a currently running process.

This command uses the debugger to attach to a running process, and reassign a filehandle to a file. The two commands executed in gdb are p close(1) which closes STDOUT and p creat("/tmp/filename",0600) which creates a file and opens it for output. Since file handles are assigned sequentially, this command opens the file in place of STDOUT and once the process continues, new output to STDOUT will instead be written to our capture file.

Instant mirror from your laptop + webcam (fullscreen+grab)

This directly puts the "mirror" into fullscreen, and lets you take photos by pressing the 's' key. I bet appearance conscious people will have keyboard shortcut for this command by now.

list human readable files

Generat a Random MAC address

Generate a random MAC address with capital letters

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 using fc

Commands using fc (8) the last day the last week the last month all time sorted by date votes

What's this?

Check These Out

Stay in the loop…

Commands using fc (8)

sorted by