是否可以使用cd
命令来前后导航(如浏览器)?类似于,但它只交换当前位置和最后位置。我知道我可以将 dir 推送到堆栈上,不过使用和cd -
会很棒。cd ->
cd <-
答案1
答案2
您可以使用pushd
和popd
答案3
# try this function
# function cd_func
# This function defines a 'cd' replacement function capable of keeping,
# displaying and accessing history of visited directories, up to 10 entries.
# To use it, uncomment it, source this file and try 'cd --'.
# acd_func 1.0.5, 10-nov-2004
# Petar Marinov, http:/geocities.com/h2428, this is public domain
cd_func ()
{
local x2 the_new_dir adir index
local -i cnt
if [[ $1 == "--" ]]; then
dirs -v
return 0
fi
the_new_dir=$1
[[ -z $1 ]] && the_new_dir=$HOME
if [[ ${the_new_dir:0:1} == '-' ]]; then
#
# Extract dir N from dirs
index=${the_new_dir:1}
[[ -z $index ]] && index=1
adir=$(dirs +$index)
[[ -z $adir ]] && return 1
the_new_dir=$adir
fi
#
# '~' has to be substituted by ${HOME}
[[ ${the_new_dir:0:1} == '~' ]] && the_new_dir="${HOME}${the_new_dir:1}"
#
# Now change to the new dir and add to the top of the stack
pushd "${the_new_dir}" > /dev/null
[[ $? -ne 0 ]] && return 1
the_new_dir=$(pwd)
#
# Trim down everything beyond 11th entry
popd -n +11 2>/dev/null 1>/dev/null
#
# Remove any other occurence of this dir, skipping the top of the stack
for ((cnt=1; cnt <= 10; cnt++)); do
x2=$(dirs +${cnt} 2>/dev/null)
[[ $? -ne 0 ]] && return 0
[[ ${x2:0:1} == '~' ]] && x2="${HOME}${x2:1}"
if [[ "${x2}" == "${the_new_dir}" ]]; then
popd -n +$cnt 2>/dev/null 1>/dev/null
cnt=cnt-1
fi
done
return 0
}
alias cd=cd_func
答案4
我使用这些功能:
export BACK_HISTORY=""
export FORWARD_HISTORY=""
function cd {
BACK_HISTORY=$PWD:$BACK_HISTORY
FORWARD_HISTORY=""
builtin cd "$@"
}
function back {
DIR=${BACK_HISTORY%%:*}
if [[ -d "$DIR" ]]
then
BACK_HISTORY=${BACK_HISTORY#*:}
FORWARD_HISTORY=$PWD:$FORWARD_HISTORY
builtin cd "$DIR"
fi
}
function forward {
DIR=${FORWARD_HISTORY%%:*}
if [[ -d "$DIR" ]]
then
FORWARD_HISTORY=${FORWARD_HISTORY#*:}
BACK_HISTORY=$PWD:$BACK_HISTORY
builtin cd "$DIR"
fi
}