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How to reference a child directory, that is part of cwd's path?
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Is there a generic way to reference a path that is nested an arbitrary level deep along the cwd? This is almost like a reverse relative path lookup.
For example:
$ pwd
/Users/somebody/foo/bar/baz
$ echo /[3] <-- 3rd directory from / in current path
/Users/somebody/foo
$ echo ~/[1] <-- 1 directory from ~ in current path
~/foo
bash shell directory
edited 10 hours ago
ctrl-alt-delor
12.4k52662
asked 14 hours ago
J WJ W
61
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J W is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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Is there a generic way to reference a path that is nested an arbitrary level deep along the cwd? This is almost like a reverse relative path lookup.
For example:
$ pwd
/Users/somebody/foo/bar/baz
$ echo /[3] <-- 3rd directory from / in current path
/Users/somebody/foo
$ echo ~/[1] <-- 1 directory from ~ in current path
~/foo
bash shell directory
edited 10 hours ago
ctrl-alt-delor
12.4k52662
asked 14 hours ago
J WJ W
61
New contributor
J W is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
Is there a generic way to reference a path that is nested an arbitrary level deep along the cwd? This is almost like a reverse relative path lookup.
For example:
$ pwd
/Users/somebody/foo/bar/baz
$ echo /[3] <-- 3rd directory from / in current path
/Users/somebody/foo
$ echo ~/[1] <-- 1 directory from ~ in current path
~/foo
bash shell directory
edited 10 hours ago
ctrl-alt-delor
12.4k52662
asked 14 hours ago
J WJ W
61
New contributor
J W is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Is there a generic way to reference a path that is nested an arbitrary level deep along the cwd? This is almost like a reverse relative path lookup.
For example:
$ pwd
/Users/somebody/foo/bar/baz
$ echo /[3] <-- 3rd directory from / in current path
/Users/somebody/foo
$ echo ~/[1] <-- 1 directory from ~ in current path
~/foo
bash shell directory
bash shell directory
edited 10 hours ago
ctrl-alt-delor
12.4k52662
asked 14 hours ago
J WJ W
61
New contributor
J W is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 10 hours ago
ctrl-alt-delor
12.4k52662
asked 14 hours ago
J WJ W
61
New contributor
J W is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 10 hours ago
ctrl-alt-delor
12.4k52662
edited 10 hours ago
ctrl-alt-delor
12.4k52662
edited 10 hours ago
ctrl-alt-delor
12.4k52662
12.4k52662
asked 14 hours ago
J WJ W
61
New contributor
J W is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 14 hours ago
J WJ W
61
asked 14 hours ago
J WJ W
61
61
New contributor
J W is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
J W is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
J W is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Put these functions into your .bashrc:
parent() {
local count
local arg
count=$(($1+1))
if [ "$2" = "" ]
then
arg="$PWD"
else
arg="$2"
if [[ $arg != /* ]]
then
printf 'Warning: "%s" does not begin with "/".n' "$arg"
fi
fi
cut -d/ -f1-"$count" <<< "$arg"
}
tparent() { # The ‘t’ stands for “tilde”.
local count
local arg
local home
count=$(($1+1))
if [ "$2" = "" ]
then
arg="$PWD"
else
arg="$2"
fi
if [ "$3" = "" ]
then
home="$HOME"
else
home="$3"
fi
if [[ $home != /* ]]
then
printf 'Warning: "%s" does not begin with "/".n' "$home"
fi
if [[ $arg/ != $home/* ]]
then
printf 'Error: "%s" does not begin with "%s".n' "$arg" "$home"
return 1
fi
printf '%s' "~${arg/$home}" | cut -d/ -f1-"$count"
}
It uses cut -d/ -f1-number
to extract the first N components of a pathname.
number has to be N+1
because the null string before the first / counts as the first field.
Usage:
$ pwd
/home/gman/stack/JW
$ parent 3
/home/gman/stack
$ tparent 1
~/stack
This can handle paths with spaces and tabs, but not newlines.
answered 11 hours ago
G-ManG-Man
13.7k93870
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Put these functions into your .bashrc:
parent() {
local count
local arg
count=$(($1+1))
if [ "$2" = "" ]
then
arg="$PWD"
else
arg="$2"
if [[ $arg != /* ]]
then
printf 'Warning: "%s" does not begin with "/".n' "$arg"
fi
fi
cut -d/ -f1-"$count" <<< "$arg"
}
tparent() { # The ‘t’ stands for “tilde”.
local count
local arg
local home
count=$(($1+1))
if [ "$2" = "" ]
then
arg="$PWD"
else
arg="$2"
fi
if [ "$3" = "" ]
then
home="$HOME"
else
home="$3"
fi
if [[ $home != /* ]]
then
printf 'Warning: "%s" does not begin with "/".n' "$home"
fi
if [[ $arg/ != $home/* ]]
then
printf 'Error: "%s" does not begin with "%s".n' "$arg" "$home"
return 1
fi
printf '%s' "~${arg/$home}" | cut -d/ -f1-"$count"
}
It uses cut -d/ -f1-number
to extract the first N components of a pathname.
number has to be N+1
because the null string before the first / counts as the first field.
Usage:
$ pwd
/home/gman/stack/JW
$ parent 3
/home/gman/stack
$ tparent 1
~/stack
This can handle paths with spaces and tabs, but not newlines.
answered 11 hours ago
G-ManG-Man
13.7k93870
add a comment |
Put these functions into your .bashrc:
parent() {
local count
local arg
count=$(($1+1))
if [ "$2" = "" ]
then
arg="$PWD"
else
arg="$2"
if [[ $arg != /* ]]
then
printf 'Warning: "%s" does not begin with "/".n' "$arg"
fi
fi
cut -d/ -f1-"$count" <<< "$arg"
}
tparent() { # The ‘t’ stands for “tilde”.
local count
local arg
local home
count=$(($1+1))
if [ "$2" = "" ]
then
arg="$PWD"
else
arg="$2"
fi
if [ "$3" = "" ]
then
home="$HOME"
else
home="$3"
fi
if [[ $home != /* ]]
then
printf 'Warning: "%s" does not begin with "/".n' "$home"
fi
if [[ $arg/ != $home/* ]]
then
printf 'Error: "%s" does not begin with "%s".n' "$arg" "$home"
return 1
fi
printf '%s' "~${arg/$home}" | cut -d/ -f1-"$count"
}
It uses cut -d/ -f1-number
to extract the first N components of a pathname.
number has to be N+1
because the null string before the first / counts as the first field.
Usage:
$ pwd
/home/gman/stack/JW
$ parent 3
/home/gman/stack
$ tparent 1
~/stack
This can handle paths with spaces and tabs, but not newlines.
answered 11 hours ago
G-ManG-Man
13.7k93870
add a comment |
Put these functions into your .bashrc:
parent() {
local count
local arg
count=$(($1+1))
if [ "$2" = "" ]
then
arg="$PWD"
else
arg="$2"
if [[ $arg != /* ]]
then
printf 'Warning: "%s" does not begin with "/".n' "$arg"
fi
fi
cut -d/ -f1-"$count" <<< "$arg"
}
tparent() { # The ‘t’ stands for “tilde”.
local count
local arg
local home
count=$(($1+1))
if [ "$2" = "" ]
then
arg="$PWD"
else
arg="$2"
fi
if [ "$3" = "" ]
then
home="$HOME"
else
home="$3"
fi
if [[ $home != /* ]]
then
printf 'Warning: "%s" does not begin with "/".n' "$home"
fi
if [[ $arg/ != $home/* ]]
then
printf 'Error: "%s" does not begin with "%s".n' "$arg" "$home"
return 1
fi
printf '%s' "~${arg/$home}" | cut -d/ -f1-"$count"
}
It uses cut -d/ -f1-number
to extract the first N components of a pathname.
number has to be N+1
because the null string before the first / counts as the first field.
Usage:
$ pwd
/home/gman/stack/JW
$ parent 3
/home/gman/stack
$ tparent 1
~/stack
This can handle paths with spaces and tabs, but not newlines.
answered 11 hours ago
G-ManG-Man
13.7k93870
Put these functions into your .bashrc:
parent() {
local count
local arg
count=$(($1+1))
if [ "$2" = "" ]
then
arg="$PWD"
else
arg="$2"
if [[ $arg != /* ]]
then
printf 'Warning: "%s" does not begin with "/".n' "$arg"
fi
fi
cut -d/ -f1-"$count" <<< "$arg"
}
tparent() { # The ‘t’ stands for “tilde”.
local count
local arg
local home
count=$(($1+1))
if [ "$2" = "" ]
then
arg="$PWD"
else
arg="$2"
fi
if [ "$3" = "" ]
then
home="$HOME"
else
home="$3"
fi
if [[ $home != /* ]]
then
printf 'Warning: "%s" does not begin with "/".n' "$home"
fi
if [[ $arg/ != $home/* ]]
then
printf 'Error: "%s" does not begin with "%s".n' "$arg" "$home"
return 1
fi
printf '%s' "~${arg/$home}" | cut -d/ -f1-"$count"
}
It uses cut -d/ -f1-number
to extract the first N components of a pathname.
number has to be N+1
because the null string before the first / counts as the first field.
Usage:
$ pwd
/home/gman/stack/JW
$ parent 3
/home/gman/stack
$ tparent 1
~/stack
This can handle paths with spaces and tabs, but not newlines.
answered 11 hours ago
G-ManG-Man
13.7k93870
answered 11 hours ago
G-ManG-Man
13.7k93870
answered 11 hours ago
G-ManG-Man
13.7k93870
answered 11 hours ago
G-ManG-Man
13.7k93870
13.7k93870
add a comment |
add a comment |
J W is a new contributor. Be nice, and check out our Code of Conduct.
J W is a new contributor. Be nice, and check out our Code of Conduct.
J W is a new contributor. Be nice, and check out our Code of Conduct.
J W is a new contributor. Be nice, and check out our Code of Conduct.
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