# host completion
if is42 ; then
+ [[ -r ~/.ssh/config ]] && _ssh_config_hosts=(${${${(@M)${(f)"$(<$HOME/.ssh/config)"}:#Host *}#Host }:#*[*?]*}) || _ssh_config_hosts=()
[[ -r ~/.ssh/known_hosts ]] && _ssh_hosts=(${${${${(f)"$(<$HOME/.ssh/known_hosts)"}:#[\|]*}%%\ *}%%,*}) || _ssh_hosts=()
[[ -r /etc/hosts ]] && : ${(A)_etc_hosts:=${(s: :)${(ps:\t:)${${(f)~~"$(</etc/hosts)"}%%\#*}##[:blank:]#[^[:blank:]]#}}} || _etc_hosts=()
else
+ _ssh_config_hosts()
_ssh_hosts=()
_etc_hosts=()
fi
hosts=(
$(hostname)
+ "$_ssh_config_hosts[@]"
"$_ssh_hosts[@]"
"$_etc_hosts[@]"
localhost
# use generic completion system for programs not yet defined; (_gnu_generic works
# with commands that provide a --help option with "standard" gnu-like output.)
for compcom in cp deborphan df feh fetchipac gpasswd head hnb ipacsum mv \
- pal stow tail uname ; do
+ pal stow uname ; do
[[ -z ${_comps[$compcom]} ]] && compdef _gnu_generic ${compcom}
done; unset compcom
# get a root shell as normal user in live-cd mode:
if isgrmlcd && [[ $UID -ne 0 ]] ; then
alias su="sudo su"
- fi
+ fi
#a1# Take a look at the syslog: \kbd{\$PAGER /var/log/syslog}
salias llog="$PAGER /var/log/syslog" # take a look at the syslog
bk() {
emulate -L zsh
local current_date=$(date -u "+%Y-%m-%dT%H:%M:%SZ")
- while (( $# > 0 )); do
- if islinux; then
- cp -a "$1" "$1_$current_date"
- elif isfreebsd; then
- if [[ -d "$1" ]] && [[ "$1" == */ ]]; then
- echo "cowardly refusing to copy $1 's content; see cp(1)" >&2; return 1
+ local clean keep move verbose result
+ setopt extended_glob
+ usage() {
+ cat << EOT
+bk [-hcmv] FILE [FILE ...]
+bk -r [-v] [FILE [FILE ...]]
+Backup a file or folder in place and append the timestamp
+Remove backups of a file or folder, or all backups in the current directory
+
+Usage:
+-h Display this help text
+-c Keep the file/folder as is, create a copy backup using cp(1) (default)
+-m Move the file/folder, using mv(1)
+-r Remove backups of the specified file or directory, using rm(1). If none
+ is provided, remove all backups in the current directory.
+-v Verbose
+
+The -c, -r and -m options are mutually exclusive. If specified at the same time,
+the last one is used.
+
+The return code is the sum of all cp/mv/rm return codes.
+EOT
+ }
+ keep=1
+ while getopts ":hcmrv" opt; do
+ case $opt in
+ c) unset move clean && (( ++keep ));;
+ m) unset keep clean && (( ++move ));;
+ r) unset move keep && (( ++clean ));;
+ v) verbose="-v";;
+ h) usage;;
+ \?) usage >&2; return 1;;
+ esac
+ done
+ shift "$((OPTIND-1))"
+ if (( keep > 0 )); then
+ while (( $# > 0 )); do
+ if islinux || isfreebsd; then
+ cp $verbose -a "${1%/}" "${1%/}_$current_date"
else
- cp -a "$1" "$1_$current_date"
+ cp $verbose -pR "${1%/}" "${1%/}_$current_date"
fi
- else;
- cp -pR "$1" "$1_$current_date"
+ (( result += $? ))
+ shift
+ done
+ elif (( move > 0 )); then
+ while (( $# > 0 )); do
+ mv $verbose "${1%/}" "${1%/}_$current_date"
+ (( result += $? ))
+ shift
+ done
+ elif (( clean > 0 )); then
+ if (( $# > 0 )); then
+ while (( $# > 0 )); do
+ rm $verbose -rf "${1%/}"_[0-9](#c4,)-(0[0-9]|1[0-2])-([0-2][0-9]|3[0-1])T([0-1][0-9]|2[0-3])(:[0-5][0-9])(#c2)Z
+ (( result += $? ))
+ shift
+ done
+ else
+ rm $verbose -rf *_[0-9](#c4,)-(0[0-9]|1[0-2])-([0-2][0-9]|3[0-1])T([0-1][0-9]|2[0-3])(:[0-5][0-9])(#c2)Z
+ (( result += $? ))
fi
- shift
- done
+ fi
+ return $result
}
#f5# cd to directoy and list files