# * functions
-ccomp() { # copy completion
- local src=$1
- local c
+
+### begin FSF section ###
+
+# Comments before functions are meant to be good useful
+# documentation. If they fail at that, please improve them or send Ian a
+# note.
+
+## copy bash completion
+# Usage: ORIGINAL_COMMAND TARGET_COMMAND...
+#
+# It copies how the bash completion works from one command to other
+# commands.
+ccomp() {
+ local c src
+ src=$1
shift
if ! c=$(complete -p $src 2>/dev/null); then
_completion_loader $src &>/dev/null ||:
eval $c $*
}
+## directory history tracking and navigation.
+#
+# cd becomes a function, also aliased to c. b to go back, f to go
+# forward, cl to list recent directories and choose one.
+#
+# The finer details you may want to skip:
+#
+# We also define bl to print the list of back and forward directories.
+#
+# We keep 2 stacks, forward and back. Unlike with a web browser, the
+# forward stack is not erased when going somewhere new.
+#
+# Recent directories are stored in ~/.cdirs.
+#
+declare -a _dir_forward _dir_back
+c() {
+ # normally, the top of _dir_back is our current dir. if it isn't,
+ # put it on there, except we don't want to do that when we
+ # just launched a shell
+ if [[ $OLDPWD ]]; then
+ if (( ${#_dir_back[@]} == 0 )) || [[ ${_dir_back[-1]} != "$PWD" ]]; then
+ _dir_back+=("$PWD")
+ fi
+ fi
+ command cd "$@"
+ if (( ${#_dir_back[@]} == 0 )) || [[ ${_dir_back[-1]} != "$PWD" ]]; then
+ _dir_back+=("$PWD")
+ fi
+ echo "$PWD" >> ~/.cdirs
+}
+ccomp cd c
+
+# back
+b() {
+ local top_back
+ if (( ${#_dir_back[@]} == 0 )); then
+ echo "nothing left to go back to" >&2
+ return 0
+ fi
+ top_back="${_dir_back[-1]}"
+
+ if [[ $top_back == "$PWD" ]] && (( ${#_dir_back[@]} == 1 )); then
+ echo "already on last back entry" >&2
+ return 0
+ fi
+
+
+ if [[ $top_back == "$PWD" ]]; then
+ # add to dirf if not already there
+ if (( ${#_dir_forward[@]} == 0 )) || [[ ${_dir_forward[-1]} != "$top_back" ]]; then
+ _dir_forward+=("$top_back")
+ fi
+ unset "_dir_back[-1]"
+ command cd "${_dir_back[-1]}"
+ else
+ if (( ${#_dir_forward[@]} == 0 )) || [[ ${_dir_forward[-1]} != "$PWD" ]]; then
+ _dir_forward+=("$PWD")
+ fi
+ command cd "$top_back"
+ fi
+
+ # Interesting feature, not sure I want it.
+ # give us a peek at what is next in the list
+ # if (( ${#_dir_back[@]} >= 2 )); then
+ # printf "%s\n" "${_dir_back[-2]}"
+ # fi
+ #
+
+ # c/b/f Implementation notes:
+ #
+ # The top of the back is $PWD
+ # as long as the last directory change was due to c,b,or cl.
+ #
+ # Example of stack changes:
+ #
+ # a b c (d)
+ ## back
+ # a b (c)
+ # d
+ #back
+ #a (b)
+ #d c
+ #back
+ #(a)
+ #d c b
+ #forward
+ #a (b)
+ #d c
+ #
+ # a b c
+ ## back
+ # a b
+ # (c)
+ ## forward
+
+}
+# forward
+f() {
+ local top_forward
+ if (( ${#_dir_forward[@]} == 0 )); then
+ echo "no forward dir left" >&2
+ return 0
+ fi
+ top_forward="${_dir_forward[-1]}"
+ unset "_dir_forward[-1]"
+ c "$top_forward"
+
+ # give us a peek at what is next in the list
+ # if (( ${#_dir_forward[@]} )); then
+ # printf "%s\n" "${_dir_forward[-1]}"
+ # fi
+}
+# cd list
+cl() {
+ local i line input start
+ local -A buttondirs alines
+ local -a buttons dirs lines
+ buttons=( {a..z} {2..9} )
+ if [[ ! -s ~/.cdirs ]]; then
+ echo nothing in ~/.cdirs
+ return 0
+ fi
+
+ i=0
+
+ mapfile -t lines <~/.cdirs
+ start=$(( ${#lines[@]} - 1 ))
+
+ # we have ~33 buttons as of this writing, so lets
+ # prune down the history every once in a while.
+ if (( start > 500 )); then
+ tac ~/.cdirs | awk '!seen[$0]++' | head -n 200 | sponge ~/.cdirs
+ fi
+
+ for (( j=$start; j >= 0; j-- )); do
+ line="${lines[$j]}"
+ if [[ ! $line || ${alines[$line]} || ! -d "$line" || $line == "$PWD" || line == "$HOME" ]]; then
+ continue
+ fi
+ alines[$line]=t
+ buttondirs[${buttons[i]}]="$line"
+ printf "%s %s\n" ${buttons[i]} "$line"
+ if (( i == ${#buttons[@]} - 1 )); then
+ break
+ fi
+ i=$(( i + 1 ))
+ done
+
+ if (( i == 0 )); then
+ echo "no dirs in ~/.cdirs"
+ return 0
+ fi
+ read -r -N 1 input
+ if [[ $input != $'\n' ]]; then
+ c ${buttondirs[$input]}
+ fi
+}
+# back list
+bl() {
+ local start i j max
+ max=10
+ start=$(( ${#_dir_back[@]} - 1 ))
+
+ # cleanup possible repeating of pwd
+ if (( start >= 0 )) && [[ ${_dir_back[$start]} == "$PWD" ]]; then
+ start=$(( start - 1 ))
+ fi
+ j=1
+ if (( start >= 0 )); then
+ for (( i=$start; i >= 0 ; i-- )); do
+ printf "%s %s\n" $j ${_dir_back[i]}
+ j=$(( j + 1 ))
+ if (( j >= max )); then
+ break
+ fi
+ done
+ fi
+
+ max=10
+ start=$(( ${#_dir_forward[@]} - 1 ))
+
+ # cleanup possible repeating of pwd
+ if (( start >= 0 )) && [[ ${_dir_forward[$start]} == "$PWD" ]]; then
+ start=$(( start - 1 ))
+ fi
+ if (( start < 0 )); then
+ return 0
+ fi
+ echo --
+ j=1
+ for (( i=$start; i >= 0 ; i-- )); do
+ printf "%s %s\n" $j ${_dir_forward[i]}
+ j=$(( j + 1 ))
+ if (( j >= max )); then
+ break
+ fi
+ done
+}
+
+# pee do. run args as a command with output copied to syslog.
+#
+# Usage: pd [-t TAG] COMMAND...
+#
+# -t TAG Override the tag in the syslog. The default is COMMAND with
+# any path part is removed, eg. for /bin/cat the tag is cat.
+#
+# You can view the log via "journalctl -t TAG"
+pd() {
+ local tag ret
+ ret=0
+ tag=${1##*/}
+ case $1 in
+ -t) tag="$2"; shift 2 ;;
+ esac
+ echo "PWD=$PWD command: $*" | logger -t $tag
+ "$@" |& pee cat "logger -t $tag" || ret=$?
+ echo "exited with status=$ret" | pee cat "logger -t $tag"
+ # this avoids any err-catch
+ (( $ret == 0 )) || return $ret
+}
+ccomp time pd
+
+# jdo = journal do. Run command as transient systemd service, tailing
+# its output in the journal until it completes.
+#
+# Usage: jdo COMMAND...
+#
+# Compared to pd: commands recognize this is a non-interactive shell.
+# The service is unaffected if our ssh connection dies, no need to run
+# in screen or tmux.
+#
+# Note: The last few lines of any existing entries for a unit by that
+# name will be output first, and there will be a few second delay at the
+# start of the command, and a second or so at the end.
+#
+# Note: Functions and aliases obviously won't work, we resolve the
+# command to a file.
+#
+# Note: requires running as root.
+jdo() {
+ local cmd cmd_name jr_pid ret
+ ret=0
+ cmd="$1"
+ shift
+ if [[ $EUID != 0 ]]; then
+ echo "jdo: error: rerun as root"
+ return 1
+ fi
+ cmd_name=${cmd##*/}
+ if [[ $cmd != /* ]]; then
+ cmd=$(type -P "$cmd")
+ fi
+ # -q = quiet
+ journalctl -qn2 -f -u "$cmd_name" &
+ # Trial and error of time needed to avoid missing initial lines.
+ # .5 was not reliable. 1 was not reliable. 2 was not reliable
+ sleep 4
+ jr_pid=$!
+ systemd-run --unit "$cmd_name" --wait --collect "$cmd" "$@" || ret=$?
+ # The sleep lets the journal output its last line
+ # before the prompt comes up.
+ sleep .5
+ kill $jr_pid &>/dev/null ||:
+ unset jr_pid
+ fg &>/dev/null ||:
+ # this avoids any err-catch
+ (( $ret == 0 )) || return $ret
+}
+ccomp time jdo
+#### end fsf section
+
..() { c ..; }
...() { c ../..; }
echo "print( ($1 $(date +%z | sed -r 's/..$//;s/^(-?)0*/\1/')) % 24)"|python3
}
-declare -a _iankdirf _iankdirb
-
-
-# ## old wcd, to be deleted
-# b() {
-# # backwards
-# c -
-# }
-# # shellcheck disable=SC2032
-# f() {
-# # cd forward
-# c +
-# }
-# cl() {
-# # choose recent directory. cl = cd list
-# c =
-# }
-# # c. better cd
-# if ! type -t c &>/dev/null; then
-# if type -p wcd &>/dev/null; then
-# if [[ $LC_INSIDE_EMACS ]]; then
-# c() { wcd -c -z 50 -o "$@"; }
-# else
-# # lets see what the fancy terminal does from time to time
-# c() { wcd -c -z 50 "$@"; }
-# fi
-# else
-# c() { cd "$@"; }
-# fi
-# fi
-
-# c. better cd.
-# keep 2 stacks, forward and back. the top of the back is $PWD
-# as long as the last directory change was due to c,b,or cl.
-c() {
- # normally, the top of dirb is our current dir. if it isn't,
- # put it on there, except we don't want to do that when we
- # just launched a shell
- if [[ $OLDPWD ]]; then
- if (( ${#_iankdirb[@]} == 0 )) || [[ ${_iankdirb[-1]} != "$PWD" ]]; then
- _iankdirb+=("$PWD")
- fi
- fi
- cd "$@"
- if (( ${#_iankdirb[@]} == 0 )) || [[ ${_iankdirb[-1]} != "$PWD" ]]; then
- _iankdirb+=("$PWD")
- fi
- echo "$PWD" >> ~/.iankdirs
-}
-ccomp cd c
-
bwm() {
s bwm-ng -T avg -d
}
-b() {
- local topb
- if (( ${#_iankdirb[@]} == 0 )); then
- echo "nothing left to go back to" >&2
- return 0
- fi
- topb="${_iankdirb[-1]}"
- if [[ $topb == "$PWD" ]] && (( ${#_iankdirb[@]} == 1 )); then
- echo "already on last back entry" >&2
- return 0
- fi
-
-
- if [[ $topb == "$PWD" ]]; then
- # add to dirf if not already there
- if (( ${#_iankdirf[@]} == 0 )) || [[ ${_iankdirf[-1]} != "$topb" ]]; then
- _iankdirf+=("$topb")
- fi
- unset "_iankdirb[-1]"
- cd "${_iankdirb[-1]}"
- else
- if (( ${#_iankdirf[@]} == 0 )) || [[ ${_iankdirf[-1]} != "$PWD" ]]; then
- _iankdirf+=("$PWD")
- fi
- cd "$topb"
- fi
-
- # give us a peek at what is next in the list
- # if (( ${#_iankdirb[@]} >= 2 )); then
- # printf "%s\n" "${_iankdirb[-2]}"
- # fi
-}
-
-f() {
- local topf
- if (( ${#_iankdirf[@]} == 0 )); then
- echo "no forward dir left" >&2
- return 0
- fi
- topf="${_iankdirf[-1]}"
- unset "_iankdirf[-1]"
- c "$topf"
-
- # give us a peek at what is next in the list
- # if (( ${#_iankdirf[@]} )); then
- # printf "%s\n" "${_iankdirf[-1]}"
- # fi
-}
-
-# a b c (d)
-## back
-# a b (c)
-# d
-#back
-#a (b)
-#d c
-#back
-#(a)
-#d c b
-#forward
-#a (b)
-#d c
-#
-# a b c
-## back
-# a b
-# (c)
-## forward
-
-cl() {
- local i line input start tmpfile
- local -A buttondirs alines
- local -a buttons dirs lines
- buttons=( {a..z} {2..9} )
- if [[ ! -s ~/.iankdirs ]]; then
- echo nothing in ~/.iankdirs
- return 0
- fi
-
- i=0
-
- # note, alternate approach like this, made the following read fail
- # done < <(tac ~/.iankdirs | awk '!seen[$0]++')
- # bash: read: read error: 0: Input/output error
- # which went away by adding a sleep 1 after it.
-
- mapfile -t lines <~/.iankdirs
- start=$(( ${#lines[@]} - 1 ))
-
- # we have ~33 buttons as of this writing, so lets
- # prune down the history every once in a while.
- if (( start > 500 )); then
- tmpfile=$(mktemp)
- tac ~/.iankdirs | awk '!seen[$0]++' | head -n 200 >$tmpfile
- cat $tmpfile > ~/.iankdirs
- fi
-
- for (( j=$start; j >= 0; j-- )); do
- line="${lines[$j]}"
- if [[ ! $line || ${alines[$line]} || ! -d "$line" || $line == "$PWD" || line == "$HOME" ]]; then
- continue
- fi
- alines[$line]=t
- buttondirs[${buttons[i]}]="$line"
- printf "%s %s\n" ${buttons[i]} "$line"
- if (( i == ${#buttons[@]} - 1 )); then
- break
- fi
- i=$(( i + 1 ))
+# for running in a fai rescue
+kdrescue() {
+ d=vgata-Samsung_SSD_850_EVO_2TB_S2RLNX0J502123D
+ for f in $d vgata-Samsung_SSD_870_QVO_8TB_S5VUNG0N900656V; do
+ cryptsetup luksOpen --key-file /p /dev/$f/root crypt-$f-root
+ cryptsetup luksOpen --key-file /p /dev/$f/o crypt-$f-o
done
-
- if (( i == 0 )); then
- echo "no dirs in ~/.iankdirs"
- return 0
- fi
- read -r -N 1 input
- if [[ $input != $'\n' ]]; then
- c ${buttondirs[$input]}
- fi
+ mount -o subvol=root_trisquelaramo /dev/mapper/crypt-$d-root /mnt
+ mount -o subvol=a /dev/mapper/crypt-$d-root /mnt/a
+ mount -o subvol=o /dev/mapper/crypt-$d-o /mnt/o
+ mount -o subvol=boot_trisquelaramo /dev/sda2 /mnt/boot
+ cd /mnt
+ chrbind
}
-bl() {
- local start i j max
- max=10
- start=$(( ${#_iankdirb[@]} - 1 ))
- # cleanup possible repeating of pwd
- if (( start >= 0 )) && [[ ${_iankdirb[$start]} == "$PWD" ]]; then
- start=$(( start - 1 ))
- fi
- j=1
- if (( start >= 0 )); then
- for (( i=$start; i >= 0 ; i-- )); do
- printf "%s %s\n" $j ${_iankdirb[i]}
- j=$(( j + 1 ))
- if (( j >= max )); then
- break
- fi
- done
- fi
-
- max=10
-
- start=$(( ${#_iankdirf[@]} - 1 ))
-
- # cleanup possible repeating of pwd
- if (( start >= 0 )) && [[ ${_iankdirf[$start]} == "$PWD" ]]; then
- start=$(( start - 1 ))
- fi
- if (( start < 0 )); then
- return 0
- fi
- echo --
- j=1
- for (( i=$start; i >= 0 ; i-- )); do
- printf "%s %s\n" $j ${_iankdirf[i]}
- j=$(( j + 1 ))
- if (( j >= max )); then
- break
- fi
- done
-}
# On first use, you input username/pass and it gets an oath token so you dont have to repeat
# it\'s at ~/.config/hub
hub() {
- local up uptar updir p
- p=/github/hub/releases/
- up=https://github.com/$(curl -s https://github.com$p| grep -o $p'download/[^/]*/hub-linux-amd64[^"]*' | head -n1)
+ local up uptar updir p v
+ # example https://github.com/github/hub/releases/download/v2.14.2/hub-linux-amd64-2.14.2.tgz
+ up=$(wget -q -O- https://api.github.com/repos/github/hub/releases/latest | jq -r .assets[].browser_download_url | grep linux-amd64)
+ re='[[:space:]]'
+ if [[ ! $up || $up == $re ]]; then
+ echo "failed to get good update url. got: $up"
+ fi
uptar=${up##*/}
updir=${uptar%.tgz}
if [[ ! -e /a/opt/$updir ]]; then
i() { git "$@"; }
ccomp git i
+# git status:
+# cvs -qn update
+
+# git checkout FILE
+# cvs update -C FILE
+
+# git pull
+# cvs up[date]
+
+# potentially useful command translation
+# https://fling.seas.upenn.edu/~giesen/dynamic/wordpress/equivalent-commands-for-git-svn-and-cvs/
+
+# importing cvs repo into git using git-cvs package:
+# /f/www $ /usr/lib/git-core/git-cvsimport -C /f/www-git
+
ic() {
# fast commit all
git commit -am "$*"
grep -Il "" "$@" &>/dev/null
}
+pst() {
+ pstree -apnA
+}
+
jtail() {
journalctl -n 10000 -f "$@"
}
journalctl -u exim4 _SYSTEMD_INVOCATION_ID=$(systemctl show -p InvocationID --value $1)
}
+
+
l() {
if [[ $PWD == /[iap] ]]; then
command ls -A --color=auto -I lost+found "$@"
ngreset
}
+
+ping() { command ping -O "$@"; }
p8() { ping "$@" 8.8.8.8; }
p6() { ping6 "$@" 2001:4860:4860::8888; }
scp() {
rsync --inplace "$@"
}
+ccomp rsync scp
randport() {
# available high ports are 1024-65535,
# rl without preserving modification time.
rsync -ahvic --delete --no-t "$@"
}
-rsu() { # [OPTS] HOST PATH
- # eg. rlu -opts frodo /testpath
+# [RSYNC_OPTS] HOST PATH
+rsu() {
+ # eg. rsu -opts frodo /testpath
# relative paths will expanded with readlink -f.
opts=("${@:1:$#-2}") # 1 to last -2
path="${*:$#}" # last
if [[ $path == .* ]]; then
path=$(readlink -f $path)
fi
- # rync here uses checksum instead of time so we dont mess with
- # unison relying on time as much. g is for group, same reason
- # to keep up with unison.
- m s rsync -rlpchviog --relative "${opts[@]}" "$path" "root@$host:/";
+ m rsync -ahvi --relative --no-implied-dirs "${opts[@]}" "$path" "root@$host:/";
}
ccomp rsync rsd rsa rst rsu
ssh fencepost head -n 300 /gd/gnuorg/EventAndTravelInfo/rms-current-trips.txt | less
}
+urun () {
+ umask $1
+ shift
+ "$@"
+}
sudo () {
command sudo "$@" || return $?
DID_SUDO=true
local SUDOD="$PWD"
sudo -i bash -c "$@"
}
-ccomp sudo s sb
+# secret sudo
+se() { s urun 0077 "$@"; }
+ccomp sudo s sb se
safe_rename() { # warn and dont rename if file exists.
# mv -n exists, but it\'s silent
history -a # save history
fi
- # assigned in brc2
- # shellcheck disable=SC1303
- if [[ $jr_pid ]]; then
- if [[ -e /proc/$jr_pid ]]; then
- kill $jr_pid
- fi
- unset jr_pid
- fi
-
case $return in
0) ps_color="$term_purple"
ps_char='\$'
iankelling.org / git / distro-setup / blobdiff