cd up a number of levels

function ..(){ for ((j=${1:-1},i=0;i<j;i++));do builtin cd ..;done;}
Instead of typing "cd ../../.." you can type ".. 3". For extremely lazy typists, you can add this alias: alias ...=".. 2" ....=".. 3" - so now you can write just .... !!! NB the .. function needs to be "source"d or included in your startup scripts, perhaps .bashrc.

3
By: bhepple
2010-01-02 08:36:12
cd cd

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What Others Think

Nice idea! However, I'm not sure to get the reason why you use 'j=${1:-1}'. Is this parameter expansion trick useful? Is the new variable j useful? Please help me to understand :-)
Josay · 441 weeks and 2 days ago
That's quite fun. Alternatively (not equivalent but simplistically) : alias :="cd .." alias :.="cd ../.." alias ::="cd ../../.." alias ::.="cd ../../../.." # repeat until bored :-) -so now you can write just :: !!! :-)
mpb · 441 weeks and 2 days ago
{VAR:-VAL} means use $VAR if it's non-null, otherwise use VAL - think of it as a default.
bhepple · 441 weeks and 2 days ago
I _like_ ':.' etc, what a hoot.
bhepple · 441 weeks and 2 days ago
Hmmm php ate my '$' - that should have been: ${VAR:-VAL} means use $VAR if it's non-null, otherwise use VAL - think of it as a default.
bhepple · 441 weeks and 1 day ago
it might help to add 'o=$PWD' and 'OLDPWD=$o' at the beginning and end in order for 'cd -' to work as expected
patrix · 441 weeks and 1 day ago
..() { cd "$(seq ${1:0} | sed '/.*/s,,../,' | tr -d '\n')"; } This way, you also keep your "cd -" working.
taliver · 441 weeks ago
Actually make that: ..() { cd "$(seq ${1:-1} | sed '/.*/s,,../,' | tr -d '\n')"; }
taliver · 441 weeks ago
Taliver - good point! I actually use a function for cd which wraps pushd so I never rely on 'cd -'. I'll try and post it here in case it's of interest: # do ". acd-func.sh" # acd-func 1.0.5, 10-nov-2004 # petar marinov, http:/geocities.com/h2428, this is public domain # http://linuxgazette.net//109/marinov.html ..() { for (( j=${1:-1},i=0; i<j; i++)); do # cd .. always succeeds (on linux, at least) even if we're at / builtin cd .. done pwd ls -CF } alias ...=".. 2" ....=".. 3" 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) || builtin cd ${THE_NEW_DIR} || exit $? pwd ls -CF # # Trim down everything beyond 11th entry popd -n +11 2>/dev/null 1>/dev/null # # Remove any other occurence of this dir, skipping the top of the stack CNT=1 while [ "$CNT" -lt 10 ]; 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 CNT=$(($CNT + 1)) done return 0 } if [[ $BASH_VERSION > "2.05" ]]; then alias cd=cd_func # ctrl+w shows the menu # but first make sure ^w doesn't get eaten by stty werase stty werase ^- bind -x '"\C-w": cd_func -- ;' fi
bhepple · 441 weeks ago

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Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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