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Functions

Commands tagged shell function from sorted by
Terminal - Commands tagged shell function - 3 results
cd(), do a ls (or whatever you can imagine) after a cd, func to long please refer to description
2015-01-01 20:50:19
User: Xk2c
Functions: cd ls
-6

some people on the net already use a cd(), but most of them break 'cd -' functionality,

that is "go back where you have been previosly", or 'cd' which is "go back home".

This cd() copes with that. Also when given a file name, go to the directory where this file is in.

cd()

{

if [[ -n ${*} ]]

then

if [[ s${*}e == s-e ]]

then

builtin cd -

elif [[ ! -d ${*} ]]

then

builtin cd "${*%/*}"

else

builtin cd "${*}"

fi

else

builtin cd ~

fi

ls -la

}

[ ~/temp/foo/bar/baz ] $ .. 3
2015-01-01 20:41:17
User: Xk2c
-4

many have aliases like:

alias ...="cd ../../"

alias ....="cd ../../../"

and so furth.

..() mitigates to need for those aliases, see sample output for an example

# .. -> go up 1 directory

# .. 4 -> go up 4 directories

..()

{

local DIR=''

declare -i NUM=0

if [[ ${1} =~ ^[1-9][0-9]*$ ]]

then

while (( ${NUM} < ${1:-1} ))

do

DIR="${DIR}../"

NUM=$(( ${NUM} + 1 ))

done

else

DIR=..

fi

cd "${DIR}"

}

$ if check4progs cp foo mv bar rsync; then echo "needed progs avail, lets do funky stuff"; else echo "oh oh better abort now"; fi
2015-01-01 16:16:00
User: Xk2c
Functions: cp echo mv
-6

Thanks to the great grml team for this func!

You really should look at their shell configs for further usefull things!

http://git.grml.org/?p=grml-etc-core.git;a=blob_plain;f=etc/grml/script-functions;h=4d6bcea8f9beae83abd08f44155d299ea54a4a9f;hb=HEAD

# {{{ check for availability of program(s)

# usage example:

# check4progs [-s,-q,--quiet,--silent] arg [arg .... argn]

#

# with option given either of:

# -s,-q,--quiet,--silent

#

# check for available progs but produce no output

check4progs() {

[ -n "${ZSH_VERSION}" ] && emulate -L sh

local RTN=0

local oldifs="${IFS}"

local ARG d found

local VERBOSE=1

case ${1} in

-q | -s | --quiet | --silent)

VERBOSE=0

shift 1

;;

*)

;;

esac

while [ $# -gt 0 ]

do

ARG="$1"

shift

found=0

IFS=:

for d in $PATH

do

if [ -x "${d}/${ARG}" ]

then

found=1

break

fi

done

IFS="${oldifs}"

# check for availability

if [ ${found} -eq 0 ]

then

if [ ${VERBOSE} -eq 1 ]

then

printf "%s: binary not found\n" "${ARG}" >&2

fi

RTN=1

fi

done

# return non zero, if at least one prog is missing!

return $RTN

}

# }}}