[solved] tab completion on bash alias

Hello everybody,
I got my install up and running .
But now I am trying to improbe productivity by adding a simple command:
cd %1 && ls
I got it working by making it like this:
cc () {
cd $* && ls
This works exactly as I want it. But it doesn`t have tab completion!
Is it possible to enable this?
(if I change the function name to cd it does have tab completion but it goes in an endless loop, learnt that the hard way)
Last edited by gnur (2008-11-07 15:40:55)

I think i should have been more clear.
I meant the completion wasn't working for the folder names.
So cc /ho<tab> won't give me home, it doesn't do anything at all.
//edit: it seems that restarting X gave me they joy of it working.
Last edited by gnur (2008-11-07 15:40:07)

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Last edited by Wasser (2012-05-09 22:45:56)

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Well, though one can of course use arguments with aliases, e.g.
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SVN Tab Complete issues (space after each complete)

Morning all,
I've got a weird issue with my SVN tab complete using Bash, it adds a space after each item it completes - for example: Say there is a directory 'foobar' with a file 'zomg' within that, I'd type 'svn add fo' and then hit tab - however, this results in 'svn add foobar ' (note the space). This is highly annoying, as I can no longer hit 'z' then tab to complete it to 'foobar/zomg', I have to remove the space, then go again (it does it for everything, so adding something like 'foobar/zomg/wtf/bbq' is a nightmare.)
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Regards,
Last edited by AlexC_ (2008-09-20 16:13:48)

Hi AlexC_ :-)
I suspect that it may be an issue with /etc/bash_completion. This is the relevant part from my /etc/bash_completion.
# svn completion
have svn &&
_svn()
local cur prev commands options command
COMPREPLY=()
cur=${COMP_WORDS[COMP_CWORD]}
commands='add blame praise annotate ann cat checkout co cleanup commit \
ci copy cp delete del remove rm diff di export help ? h import \
info list ls lock log merge mkdir move mv rename ren \
propdel pdel pd propedit pedit pe propget pget pg \
proplist plist pl propset pset ps resolved revert \
status stat st switch sw unlock update up'
if [[ $COMP_CWORD -eq 1 ]] ; then
if [[ "$cur" == -* ]]; then
COMPREPLY=( $( compgen -W '--version' -- $cur ) )
else
COMPREPLY=( $( compgen -W "$commands" -- $cur ) )
fi
else
prev=${COMP_WORDS[COMP_CWORD-1]}
case $prev in
--config-dir)
_filedir -d
return 0;
-@(F|-file|-targets))
_filedir
return 0;
--encoding)
COMPREPLY=( $( compgen -W \
'$( iconv --list | sed -e "s@//@@;" )' \
-- "$cur" ) )
return 0;
--@(editor|diff|diff3)-cmd)
COMP_WORDS=(COMP_WORDS[0] $cur)
COMP_CWORD=1
_command
return 0;
esac
command=${COMP_WORDS[1]}
if [[ "$cur" == -* ]]; then
# possible options for the command
case $command in
add)
options='--auto-props --no-auto-props \
--force --targets --no-ignore \
--non-recursive -N -q --quiet'
@(blame|annotate|ann|praise))
options='-r --revisions --username \
--password --no-auth-cache \
--non-interactive -v \
--verbose --incremental --xml'
cat)
options='-r --revision --username \
--password --no-auth-cache \
--non-interactive'
@(checkout|co))
options='-r --revision -q --quiet -N \
--non-recursive --username \
--password --no-auth-cache \
--non-interactive \
--ignore-externals'
cleanup)
options='--diff3-cmd'
@(commit|ci))
options='-m --message -F --file \
--encoding --force-log -q \
--quiet --non-recursive -N \
--targets --editor-cmd \
--username --password \
--no-auth-cache \
--non-interactive --no-unlock'
@(copy|cp))
options='-m --message -F --file \
--encoding --force-log -r \
--revision -q --quiet \
--editor-cmd -username \
--password --no-auth-cache \
--non-interactive'
@(delete|del|remove|rm))
options='--force -m --message -F \
--file --encoding --force-log \
-q --quiet --targets \
--editor-cmd -username \
--password --no-auth-cache \
--non-interactive'
@(diff|di))
options='-r --revision -x --extensions \
--diff-cmd --no-diff-deleted \
-N --non-recursive --username \
--password --no-auth-cache \
--non-interactive --force \
--old --new --notice-ancestry'
export)
options='-r --revision -q --quiet \
--username --password \
--no-auth-cache \
--non-interactive -N \
--non-recursive --force \
--native-eol --ignore-externals'
import)
options='--auto-props --no-auto-props \
-m --message -F --file \
--encoding --force-log -q \
--quiet --non-recursive \
--no-ignore --editor-cmd \
--username --password \
--no-auth-cache \
--non-interactive'
info)
options='--username --password \
--no-auth-cache \
--non-interactive -r \
--revision --xml --targets \
-R --recursive --incremental'
@(list|ls))
options='-r --revision -v --verbose -R \
--recursive --username \
--password --no-auth-cache \
--non-interactive \
--incremental --xml'
lock)
options='-m --message -F --file \
--encoding --force-log \
--targets --force --username \
--password --no-auth-cache \
--non-interactive'
log)
options='-r --revision -v --verbose \
--targets --username \
--password --no-auth-cache \
--non-interactive \
--stop-on-copy --incremental \
--xml -q --quiet --limit'
merge)
options='-r --revision -N \
--non-recursive -q --quiet \
--force --dry-run --diff3-cmd \
--username --password \
--no-auth-cache \
--non-interactive \
--ignore-ancestry'
mkdir)
options='-m --message -F --file \
--encoding --force-log -q \
--quiet --editor-cmd \
--username --password \
--no-auth-cache \
--non-interactive'
@(move|mv|rename|ren))
options='-m --message -F --file \
--encoding --force-log -r \
--revision -q --quiet \
--force --editor-cmd \
--username --password \
--no-auth-cache \
--non-interactive'
@(propdel|pdel|pd))
options='-q --quiet -R --recursive -r \
--revision --revprop \
--username --password \
--no-auth-cache \
--non-interactive'
@(propedit|pedit|pe))
options='-r --revision --revprop \
--encoding --editor-cmd \
--username --password \
--no-auth-cache \
--non-interactive --force'
@(propget|pget|pg))
options='-R --recursive -r --revision \
--revprop --strict --username \
--password --no-auth-cache \
--non-interactive'
@(proplist|plist|pl))
options='-v --verbose -R --recursive \
-r --revision --revprop -q \
--quiet --username --password \
--no-auth-cache \
--non-interactive'
@(propset|pset|ps))
options='-F --file -q --quiet \
--targets -R --recursive \
--revprop --encoding \
--username --password \
--no-auth-cache \
--non-interactive -r \
--revision --force'
resolved)
options='--targets -R --recursive -q \
--quiet'
revert)
options='--targets -R --recursive -q \
--quiet'
@(status|stat|st))
options='-u --show-updates -v \
--verbose -N --non-recursive \
-q --quiet --username \
--password --no-auth-cache \
--non-interactive --no-ignore \
--ignore-externals \
--incremental --xml'
@(switch|sw))
options='--relocate -r --revision -N \
--non-recursive -q --quiet \
--username --password \
--no-auth-cache \
--non-interactive --diff3-cmd'
unlock)
options='--targets --force --username \
--password --no-auth-cache \
--non-interactive'
@(update|up))
options='-r --revision -N \
--non-recursive -q --quiet \
--username --password \
--no-auth-cache \
--non-interactive \
--diff3-cmd --ignore-externals'
esac
options="$options --help -h --config-dir"
COMPREPLY=( $( compgen -W "$options" -- $cur ) )
else
if [[ "$command" == @(help|h|\?) ]]; then
COMPREPLY=( $( compgen -W "$commands" -- $cur ) )
else
_filedir
fi
fi
fi
return 0
complete -F _svn $default svn
_svnadmin()
local cur prev commands options mode
COMPREPLY=()
cur=${COMP_WORDS[COMP_CWORD]}
commands='create deltify dump help ? hotcopy list-dblogs \
list-unused-dblogs load lslocks lstxns recover rmlocks \
rmtxns setlog verify'
if [[ $COMP_CWORD -eq 1 ]] ; then
if [[ "$cur" == -* ]]; then
COMPREPLY=( $( compgen -W '--version' -- $cur ) )
else
COMPREPLY=( $( compgen -W "$commands" -- $cur ) )
fi
else
prev=${COMP_WORDS[COMP_CWORD-1]}
case $prev in
--config-dir)
_filedir -d
return 0;
--fs-type)
COMPREPLY=( $( compgen -W 'fsfs bdb' -- $cur ) )
return 0;
esac
command=${COMP_WORDS[1]}
if [[ "$cur" == -* ]]; then
# possible options for the command
case $command in
create)
options='--bdb-txn-nosync \
--bdb-log-keep --config-dir \
--fs-type'
deltify)
options='-r --revision -q --quiet'
dump)
options='-r --revision --incremental \
-q --quiet --deltas'
hotcopy)
options='--clean-logs'
load)
options='--ignore-uuid --force-uuid \
--parent-dir -q --quiet \
--use-pre-commit-hook \
--use-post-commit-hook'
rmtxns)
options='-q --quiet'
setlog)
options='-r --revision --bypass-hooks'
esac
options="$options --help -h"
COMPREPLY=( $( compgen -W "$options" -- $cur ) )
else
if [[ "$command" == @(help|h|\?) ]]; then
COMPREPLY=( $( compgen -W "$commands" -- $cur ) )
else
_filedir
fi
fi
fi
return 0
complete -F _svnadmin $default svnadmin
_svnlook()
local cur prev commands options mode
COMPREPLY=()
cur=${COMP_WORDS[COMP_CWORD]}
commands='author cat changed date diff dirs-changed help ? h history \
info lock log propget pget pg proplist plist pl tree uuid \
youngest'
if [[ $COMP_CWORD -eq 1 ]] ; then
if [[ "$cur" == -* ]]; then
COMPREPLY=( $( compgen -W '--version' -- $cur ) )
else
COMPREPLY=( $( compgen -W "$commands" -- $cur ) )
fi
else
command=${COMP_WORDS[1]}
if [[ "$cur" == -* ]]; then
# possible options for the command
case $command in
@(author|cat|date|dirs-changed|info|log))
options='-r --revision -t \
--transaction'
changed)
options='-r --revision -t \
--transaction --copy-info'
diff)
options='-r --revision -t \
--transaction \
--no-diff-deleted \
--no-diff-added \
--diff-copy-from'
history)
options='-r --revision --show-ids'
prop@(get|list))
options='-r --revision -t \
--transaction --revprop'
tree)
options='-r --revision -t \
--transaction --show-ids \
--full-paths'
esac
options="$options --help -h"
COMPREPLY=( $( compgen -W "$options" -- $cur ) )
else
if [[ "$command" == @(help|h|\?) ]]; then
COMPREPLY=( $( compgen -W "$commands" -- $cur ) )
else
_filedir
fi
fi
fi
return 0
complete -F _svnlook $default svnlook
Hope this helps.
Last edited by alanhaggai (2008-09-21 02:08:12)

Bash tab completion broken

Hi all,
Probably a dumb question but google has been no help this afternoon but basically my problem is thus:
In my vnc sessions I cannot tab complete...anything at all.... yet, in putty I can tab just fine.
Some details...
bash rc file
if [ -f /etc/bash_completion ]; then
. /etc/bash_completion
fi
# If not running interactively, don't do anything
[[ $- != *i* ]] && return
alias ls='ls --color=auto'
PS1='[\u@\h \W]\$ '
system
uname -a
Linux Kannagi 2.6.38-ARCH #1 SMP PREEMPT Fri Apr 22 20:29:33 CEST 2011 x86_64 Dual-Core AMD Opteron(tm) Processor 2214 HE AuthenticAMD GNU/Linux
shell
echo $SHELL
/bin/bash
I have everything installed I believe:
pacman
pacman -Q |grep -i bash
bash 4.2.008-1
bash-completion 1.3-2
Any ideas? Something I'm missing?
Thanks!!

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Last edited by Spara06 (2014-08-30 20:03:52)

jasonwryan wrote:
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http://i.imgur.com/GwByh.png is a picture showing the issue.
.dir_colors
# Configuration file for dircolors, a utility to help you set the
# LS_COLORS environment variable used by GNU ls with the --color option.
# Copyright (C) 1996, 1999-2011 Free Software Foundation, Inc.
# Copying and distribution of this file, with or without modification,
# are permitted provided the copyright notice and this notice are preserved.
# The keywords COLOR, OPTIONS, and EIGHTBIT (honored by the
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TERM ansi
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TERM con132x60
TERM con80x25
TERM con80x28
TERM con80x30
TERM con80x43
TERM con80x50
TERM con80x60
TERM cons25
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TERM screen-bce
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TERM xterm
TERM xterm-16color
TERM xterm-256color
TERM xterm-88color
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# Below are the color init strings for the basic file types. A color init
# string consists of one or more of the following numeric codes:
# Attribute codes:
# 00=none 01=bold 04=underscore 05=blink 07=reverse 08=concealed
# Text color codes:
# 30=black 31=red 32=green 33=yellow 34=blue 35=magenta 36=cyan 37=white
# Background color codes:
# 40=black 41=red 42=green 43=yellow 44=blue 45=magenta 46=cyan 47=white
#NORMAL 00 # no color code at all
#FILE 00 # regular file: use no color at all
#RESET 0 # reset to "normal" color
DIR 01;34 # directory
LINK 01;36 # symbolic link. (If you set this to 'target' instead of a
# numerical value, the color is as for the file pointed to.)
MULTIHARDLINK 00 # regular file with more than one link
FIFO 40;33 # pipe
SOCK 01;35 # socket
DOOR 01;35 # door
BLK 40;33;01 # block device driver
CHR 40;33;01 # character device driver
ORPHAN 40;31;01 # symlink to nonexistent file, or non-stat'able file
SETUID 37;41 # file that is setuid (u+s)
SETGID 30;40 # file that is setgid (g+s)
CAPABILITY 30;41 # file with capability
STICKY_OTHER_WRITABLE 32;40 # dir that is sticky and other-writable (+t,o+w)
OTHER_WRITABLE 35;40 # dir that is other-writable (o+w) and not sticky
STICKY 37;44 # dir with the sticky bit set (+t) and not other-writable
# This is for files with execute permission:
EXEC 01;32
# List any file extensions like '.gz' or '.tar' that you would like ls
# to colorize below. Put the extension, a space, and the color init string.
# (and any comments you want to add after a '#')
# If you use DOS-style suffixes, you may want to uncomment the following:
#.cmd 01;32 # executables (bright green)
#.exe 01;32
#.com 01;32
#.btm 01;32
#.bat 01;32
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# executable bit actually set.
#.sh 01;32
#.csh 01;32
# archives or compressed (bright red)
.tar 01;31
.tgz 01;31
.arj 01;31
.taz 01;31
.lzh 01;31
.lzma 01;31
.tlz 01;31
.txz 01;31
.zip 01;31
.z 01;31
.Z 01;31
.dz 01;31
.gz 01;31
.lz 01;31
.xz 01;31
.bz2 01;31
.bz 01;31
.tbz 01;31
.tbz2 01;31
.tz 01;31
.deb 01;31
.rpm 01;31
.jar 01;31
.war 01;31
.ear 01;31
.sar 01;31
.rar 01;31
.ace 01;31
.zoo 01;31
.cpio 01;31
.7z 01;31
.rz 01;31
# image formats
.jpg 01;35
.jpeg 01;35
.gif 01;35
.bmp 01;35
.pbm 01;35
.pgm 01;35
.ppm 01;35
.tga 01;35
.xbm 01;35
.xpm 01;35
.tif 01;35
.tiff 01;35
.png 01;35
.svg 01;35
.svgz 01;35
.mng 01;35
.pcx 01;35
.mov 01;35
.mpg 01;35
.mpeg 01;35
.m2v 01;35
.mkv 01;35
.ogm 01;35
.mp4 01;35
.m4v 01;35
.mp4v 01;35
.vob 01;35
.qt 01;35
.nuv 01;35
.wmv 01;35
.asf 01;35
.rm 01;35
.rmvb 01;35
.flc 01;35
.avi 01;35
.fli 01;35
.flv 01;35
.gl 01;35
.dl 01;35
.xcf 01;35
.xwd 01;35
.yuv 01;35
.cgm 01;35
.emf 01;35
# http://wiki.xiph.org/index.php/MIME_Types_and_File_Extensions
.axv 01;35
.anx 01;35
.ogv 01;35
.ogx 01;35
# audio formats
.aac 00;36
.au 00;36
.flac 00;36
.mid 00;36
.midi 00;36
.mka 00;36
.mp3 00;36
.mpc 00;36
.ogg 00;36
.ra 00;36
.wav 00;36
# http://wiki.xiph.org/index.php/MIME_Types_and_File_Extensions
.axa 00;36
.oga 00;36
.spx 00;36
.xspf 00;36
I'm using zsh.
Last edited by livinglifeback (2011-08-13 18:52:03)

I myself just uses the standard colors and don't change them from default, but I do get the same colors for both ls and completion with this in .zshrc:
eval `dircolors -b`
zstyle ':completion:*' list-colors ${(s.:.)LS_COLORS}

Tab completion with a Unix Shell simulation

Hi everyone,
I am writing a command line program which needs to interface a Unix Shell.
when I type "!command", it will send the command to a bash process and read the output then write it on stdout.
The bash I am running merges stdout and stderr (exec 2>&1).
Everything works great, but now I would like to add the tab-completion functionality.
I would just need to send (tab) to the process so that I can read the output completion, I tried many ways but without success.
Also, I saw we can specify the tag for completion in file ~/.inputrc, but if my tag does not end with \n, I will write it in the buffer and we will be red by bash only after \n is typed.
I hope I made myself clear.
Thanks for your help!
Dimebag

That is the point.
I did try with out.write((char)9) twice followed by
flush(), however the data gets stuck in the buffer
and will only be received after the next command
(finishing with \n).
I would need to use println but this does not work
either.Ahh, I see...
According to this page (http://www.die.net/doc/linux/man/man1/screen.1.html), vt100 allows you to send 'ESC [ Pn I", or {(char)33, (char)91, (char)0, (char)73} as an escape code for the horizontal tab. I don't know if that will work either (never done terminal emulation), but it might be worth a shot.
As an aside, an alias for Bash's tab completion is a Control I, but I don't know what that translates to, if not the weird escape sequence above.

Useful tab-completion for .bashrc

I was searching for a tab completion in systemd commands such as:
$ systemct <TAB> (this show all possible parameters/flags) and another <TAB> (show all units and itself commands).
Reading posts here and there I found that the following command in .bashrc:
complete -F or -C command
did the trick, but this is awful and painfull cause I need to implement it in all commands, such as, pacman, man, sudo, etc. Ok, googling, I found this usefull script you can put in your .bashrc:
# completion.bash
_vault_complete() {
COMPREPLY=()
local word="${COMP_WORDS[COMP_CWORD]}"
local completions="$(vault --cmplt "$word")"
COMPREPLY=( $(compgen -W "$completions" -- "$word") )
complete -f -F _vault_complete vault
This will complete all your commands with infinite posibilities. (This example use command vault, you can use whatever you want)
I put the link (well explained) here because there is a way to do it in zshell for those interested on it.
http://goo.gl/RFwgK
I hope this can be help someone.
Cheers
Maybe would be useful to put this script on the bashrc wiki.
Last edited by JohnnyDeacon (2013-05-21 13:21:21)

firecat53 wrote:
Just wondering if you actually tested this first...from what I read on the link you provided, this script fragment provided completion for the 'vault' command only if I'm understanding it correctly. In order to make this work for any command, you would have to repeat that shell fragment for _each_ command. Not sure what this gets you over just using 'complete -cf <cmd>'.
I think the author was just explaining how to create a bash completion script for an arbitrary command that could be included along with that command. Most software packages have those bash completion scripts already included. This could be used for a command that doesn't include that script already. If that's what you intended with your post it wasn't clear to me :-)
Scott
Edit: I also just noticed that without even having 'complete -cf systemctl' in my .bashrc, bash is still giving me a list of possible systemctl options when I hit <TAB> after typing systemctl. Ooo, nice! Never noticed that before
complete -cf <cmd> does not complete with flags and parameters.
I have noticed about a script called bash-completion on repos that do completion very well, I'll check it out if it works with all commands.

Tab-completion after directories containing spaces broken

Hello,
Some days ago I noticed that tab-completion doesn't work any more on files and directories that contain spaces. I'm pretty sure that it has. I'm using bash (3.1.17-1). I don't know when this happened, but my suspicion is that it is related to the upgrade to readline 5.2. Has anyone else experienced this? (Maybe someone can be a bit more specific than I )
Hm, here are some other perhaps interesting settings on my system:
LOCALE="en_US.ISO-8859-1"
KEYMAP="sv-latin1.map.gz"
CONSOLEFONT="lat1-16.psfu.gz"
CONSOLEMAP="8859-1"
Regards

Romashka wrote:Probably due to upgrade of readline while bash was not recompiled.
In bug report somebody mentioned that he recompiled bash against current readline without success in resolving the issue (so did slubman a moment ago). I think that's rather bash itself or bash/readline (not likely since new bash works properly) problem.
Anyway I'm stopping before I'll turn this thread into bug system I'm going to watch bug reports since now without "bugging" you (a insectorium in one phrase )
Thanks a lot for your replies and interest!

Using Tab Completion

I am just starting to work with command-line navigation in terminal. They say "tab completion" is a absolute time-saving feature.
It worked for me the first time, but now it doesn't. At my home folder, I enter cd, then p and press the Tab key. After pressing the tab key a second time, it should display all choices beginning with p. Nothing happens. Any ideas?

baltwo wrote:
Hmmm! I have a simple bash shell set up and all I get is the alert sound. Maybe you're using another shell or have something else set that accounts for the discrepancy.
Nope. I'm using the system default bash. If I try to complete something that isn't there, such as "cd p", I get an alert. If I try something that has possible completions, like "cd P", I get a list of the directories.

"Tab Completion" closing console sessions

Starting this morning I find that pressing the TAB key terminates console sessions. For instance, running KDE as a user if I run "konsole", then su to root - pressing tab will return me to user console and pressing tab again will close konsole app (Session shell exited with signal 11).
A text console (ctl-alt-f1) will also terminate pressing tab so not an X problem.
I did a pacman -Suy yesterday and sed, dbus and vte packages were updated but I can't see anything in those. Dodgy keyboard? I don't know much about termcaps so am a bit stuck.
A nuisance as I use tab completion quite often.
EDIT: Hmm, rebooted and problem has gone!

byte wrote:Can you specify somewhere to use a login shell (bash -l)?
Normally .bashrc gets sourced by .bash_profile, and unless it's a login shell nothing will happen.
I tried running "bash -l" but the shell I get doesn't have bash completion either : (

Root user tab completion in vi editing mode

When I su to the root user at the terminal I lose tab completion. Whenever I press TAB to complete a file or directory name I get an actual tab character.
I've tried editing ~/.inputrc for root and this seems to work for emacs editing mode but if I switch to vi mode using 'set -o vi' I lose completions and get tabs.
I don't have this problem with a normal user, just when I switch to root. Does anyone know what I'm doing wrong?

I managed to solve it! Add the following to ~root/.inputrc (or /etc/inputrc):
"\t": complete
This maps the TAB key to the 'complete' function. Don't know why it isn't already for root when it is for other users.

[solved] tab completion on bash alias

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