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How to produce a PS1 prompt in bash or ksh93 similar to tcsh
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In tcsh, I have the default:
prompt [%m:%c3] %n%#
which gives prompts like:
[woehler:hacking/c/hello] ajcarr%
and
[woehler:~] ajcarr%
In other words, the current directory and up to the next two above it in the path.
In ksh93 or bash, the substitution of $HOME by ~ is easy, as is extracting the name of just the current directory, but I have yet to find a way of replicating the %c3 behaviour of tcsh. At present in ksh93 I have:
[ajcarr@Woehler] hello $
and
[ajcarr@Woehler] ~ $
Does anyone have any suggestions about how to do this?
bash ksh prompt tcsh
edited 3 hours ago
steeldriver
38.1k45489
asked 4 hours ago
Alun CarrAlun Carr
7612
add a comment |
In tcsh, I have the default:
prompt [%m:%c3] %n%#
which gives prompts like:
[woehler:hacking/c/hello] ajcarr%
and
[woehler:~] ajcarr%
In other words, the current directory and up to the next two above it in the path.
In ksh93 or bash, the substitution of $HOME by ~ is easy, as is extracting the name of just the current directory, but I have yet to find a way of replicating the %c3 behaviour of tcsh. At present in ksh93 I have:
[ajcarr@Woehler] hello $
and
[ajcarr@Woehler] ~ $
Does anyone have any suggestions about how to do this?
bash ksh prompt tcsh
edited 3 hours ago
steeldriver
38.1k45489
asked 4 hours ago
Alun CarrAlun Carr
7612
add a comment |
In tcsh, I have the default:
prompt [%m:%c3] %n%#
which gives prompts like:
[woehler:hacking/c/hello] ajcarr%
and
[woehler:~] ajcarr%
In other words, the current directory and up to the next two above it in the path.
In ksh93 or bash, the substitution of $HOME by ~ is easy, as is extracting the name of just the current directory, but I have yet to find a way of replicating the %c3 behaviour of tcsh. At present in ksh93 I have:
[ajcarr@Woehler] hello $
and
[ajcarr@Woehler] ~ $
Does anyone have any suggestions about how to do this?
bash ksh prompt tcsh
edited 3 hours ago
steeldriver
38.1k45489
asked 4 hours ago
Alun CarrAlun Carr
7612
In tcsh, I have the default:
prompt [%m:%c3] %n%#
which gives prompts like:
[woehler:hacking/c/hello] ajcarr%
and
[woehler:~] ajcarr%
In other words, the current directory and up to the next two above it in the path.
In ksh93 or bash, the substitution of $HOME by ~ is easy, as is extracting the name of just the current directory, but I have yet to find a way of replicating the %c3 behaviour of tcsh. At present in ksh93 I have:
[ajcarr@Woehler] hello $
and
[ajcarr@Woehler] ~ $
Does anyone have any suggestions about how to do this?
bash ksh prompt tcsh
bash ksh prompt tcsh
edited 3 hours ago
steeldriver
38.1k45489
asked 4 hours ago
Alun CarrAlun Carr
7612
edited 3 hours ago
steeldriver
38.1k45489
asked 4 hours ago
Alun CarrAlun Carr
7612
edited 3 hours ago
steeldriver
38.1k45489
edited 3 hours ago
steeldriver
38.1k45489
edited 3 hours ago
steeldriver
38.1k45489
38.1k45489
asked 4 hours ago
Alun CarrAlun Carr
7612
asked 4 hours ago
Alun CarrAlun Carr
7612
asked 4 hours ago
Alun CarrAlun Carr
7612
7612
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
For bash, you could achieve similar results by setting the PROMPT_DIRTRIM variable:
$ PS1='[u@h] w$ '
[schaller@r2d2] ~$ pwd
/home/schaller
[schaller@r2d2] ~$ PROMPT_DIRTRIM=3
[schaller@r2d2] ~$ cd /home/schaller/tmp/513924/another/directory/here
[schaller@r2d2] ~/.../another/directory/here$
answered 3 hours ago
Jeff Schaller♦Jeff Schaller
45.2k1164147
add a comment |
In ksh93:
PS1='${PWD#${PWD%?/*/*/*}?/} $ '
share/doc/libnl-3-dev $ _
PS1='[${HOSTNAME%%.*}:${PWD#${PWD%?/*/*/*}?/}] $USER% '
[host:share/doc/libnl-3-dev] user% _
If you want it to also replace $HOME with ~, something nastier is needed:
PS1='$(d=${PWD/#$HOME/"~"};printf %s "${d#${d%?/*/*/*}?/}") $ '
~/w/maemo $ cd sb2-pathmaps
w/maemo/sb2-pathmaps $ _
PS1='$(d=${PWD/#$HOME/"~"};printf %s "[${HOSTNAME%%.*}:${d#${d%?/*/*/*}?/}]") $USER% '
[host:w/maemo/sb2-pathmaps] user% _
All this should also work in bash, though bash has its own prompt escapes (eg. h for ${HOSTNAME%%.*}) and path shortening mechanism (with PROMPT_DIRTRIM).
Also, the nastier variant will be really nasty, because bash, unlike ksh93, will fork() a separate process for each $(...; printf ...) command substitution, even if it contains only builtins. This also holds true for pdksh derived shells, like mksh.
zsh has prompt escapes quite similar but not identical to tcsh:
zsh$ PS1='[%m:%3c] %n%# '
[host:share/doc/libnl-3-dev] user% _
answered 3 hours ago
mosvymosvy
10.6k11338
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
For bash, you could achieve similar results by setting the PROMPT_DIRTRIM variable:
$ PS1='[u@h] w$ '
[schaller@r2d2] ~$ pwd
/home/schaller
[schaller@r2d2] ~$ PROMPT_DIRTRIM=3
[schaller@r2d2] ~$ cd /home/schaller/tmp/513924/another/directory/here
[schaller@r2d2] ~/.../another/directory/here$
answered 3 hours ago
Jeff Schaller♦Jeff Schaller
45.2k1164147
add a comment |
For bash, you could achieve similar results by setting the PROMPT_DIRTRIM variable:
$ PS1='[u@h] w$ '
[schaller@r2d2] ~$ pwd
/home/schaller
[schaller@r2d2] ~$ PROMPT_DIRTRIM=3
[schaller@r2d2] ~$ cd /home/schaller/tmp/513924/another/directory/here
[schaller@r2d2] ~/.../another/directory/here$
answered 3 hours ago
Jeff Schaller♦Jeff Schaller
45.2k1164147
add a comment |
For bash, you could achieve similar results by setting the PROMPT_DIRTRIM variable:
$ PS1='[u@h] w$ '
[schaller@r2d2] ~$ pwd
/home/schaller
[schaller@r2d2] ~$ PROMPT_DIRTRIM=3
[schaller@r2d2] ~$ cd /home/schaller/tmp/513924/another/directory/here
[schaller@r2d2] ~/.../another/directory/here$
answered 3 hours ago
Jeff Schaller♦Jeff Schaller
45.2k1164147
For bash, you could achieve similar results by setting the PROMPT_DIRTRIM variable:
$ PS1='[u@h] w$ '
[schaller@r2d2] ~$ pwd
/home/schaller
[schaller@r2d2] ~$ PROMPT_DIRTRIM=3
[schaller@r2d2] ~$ cd /home/schaller/tmp/513924/another/directory/here
[schaller@r2d2] ~/.../another/directory/here$
answered 3 hours ago
Jeff Schaller♦Jeff Schaller
45.2k1164147
answered 3 hours ago
Jeff Schaller♦Jeff Schaller
45.2k1164147
answered 3 hours ago
Jeff Schaller♦Jeff Schaller
45.2k1164147
answered 3 hours ago
Jeff Schaller♦Jeff Schaller
45.2k1164147
45.2k1164147
add a comment |
add a comment |
In ksh93:
PS1='${PWD#${PWD%?/*/*/*}?/} $ '
share/doc/libnl-3-dev $ _
PS1='[${HOSTNAME%%.*}:${PWD#${PWD%?/*/*/*}?/}] $USER% '
[host:share/doc/libnl-3-dev] user% _
If you want it to also replace $HOME with ~, something nastier is needed:
PS1='$(d=${PWD/#$HOME/"~"};printf %s "${d#${d%?/*/*/*}?/}") $ '
~/w/maemo $ cd sb2-pathmaps
w/maemo/sb2-pathmaps $ _
PS1='$(d=${PWD/#$HOME/"~"};printf %s "[${HOSTNAME%%.*}:${d#${d%?/*/*/*}?/}]") $USER% '
[host:w/maemo/sb2-pathmaps] user% _
All this should also work in bash, though bash has its own prompt escapes (eg. h for ${HOSTNAME%%.*}) and path shortening mechanism (with PROMPT_DIRTRIM).
Also, the nastier variant will be really nasty, because bash, unlike ksh93, will fork() a separate process for each $(...; printf ...) command substitution, even if it contains only builtins. This also holds true for pdksh derived shells, like mksh.
zsh has prompt escapes quite similar but not identical to tcsh:
zsh$ PS1='[%m:%3c] %n%# '
[host:share/doc/libnl-3-dev] user% _
answered 3 hours ago
mosvymosvy
10.6k11338
add a comment |
In ksh93:
PS1='${PWD#${PWD%?/*/*/*}?/} $ '
share/doc/libnl-3-dev $ _
PS1='[${HOSTNAME%%.*}:${PWD#${PWD%?/*/*/*}?/}] $USER% '
[host:share/doc/libnl-3-dev] user% _
If you want it to also replace $HOME with ~, something nastier is needed:
PS1='$(d=${PWD/#$HOME/"~"};printf %s "${d#${d%?/*/*/*}?/}") $ '
~/w/maemo $ cd sb2-pathmaps
w/maemo/sb2-pathmaps $ _
PS1='$(d=${PWD/#$HOME/"~"};printf %s "[${HOSTNAME%%.*}:${d#${d%?/*/*/*}?/}]") $USER% '
[host:w/maemo/sb2-pathmaps] user% _
All this should also work in bash, though bash has its own prompt escapes (eg. h for ${HOSTNAME%%.*}) and path shortening mechanism (with PROMPT_DIRTRIM).
Also, the nastier variant will be really nasty, because bash, unlike ksh93, will fork() a separate process for each $(...; printf ...) command substitution, even if it contains only builtins. This also holds true for pdksh derived shells, like mksh.
zsh has prompt escapes quite similar but not identical to tcsh:
zsh$ PS1='[%m:%3c] %n%# '
[host:share/doc/libnl-3-dev] user% _
answered 3 hours ago
mosvymosvy
10.6k11338
add a comment |
In ksh93:
PS1='${PWD#${PWD%?/*/*/*}?/} $ '
share/doc/libnl-3-dev $ _
PS1='[${HOSTNAME%%.*}:${PWD#${PWD%?/*/*/*}?/}] $USER% '
[host:share/doc/libnl-3-dev] user% _
If you want it to also replace $HOME with ~, something nastier is needed:
PS1='$(d=${PWD/#$HOME/"~"};printf %s "${d#${d%?/*/*/*}?/}") $ '
~/w/maemo $ cd sb2-pathmaps
w/maemo/sb2-pathmaps $ _
PS1='$(d=${PWD/#$HOME/"~"};printf %s "[${HOSTNAME%%.*}:${d#${d%?/*/*/*}?/}]") $USER% '
[host:w/maemo/sb2-pathmaps] user% _
All this should also work in bash, though bash has its own prompt escapes (eg. h for ${HOSTNAME%%.*}) and path shortening mechanism (with PROMPT_DIRTRIM).
Also, the nastier variant will be really nasty, because bash, unlike ksh93, will fork() a separate process for each $(...; printf ...) command substitution, even if it contains only builtins. This also holds true for pdksh derived shells, like mksh.
zsh has prompt escapes quite similar but not identical to tcsh:
zsh$ PS1='[%m:%3c] %n%# '
[host:share/doc/libnl-3-dev] user% _
answered 3 hours ago
mosvymosvy
10.6k11338
In ksh93:
PS1='${PWD#${PWD%?/*/*/*}?/} $ '
share/doc/libnl-3-dev $ _
PS1='[${HOSTNAME%%.*}:${PWD#${PWD%?/*/*/*}?/}] $USER% '
[host:share/doc/libnl-3-dev] user% _
If you want it to also replace $HOME with ~, something nastier is needed:
PS1='$(d=${PWD/#$HOME/"~"};printf %s "${d#${d%?/*/*/*}?/}") $ '
~/w/maemo $ cd sb2-pathmaps
w/maemo/sb2-pathmaps $ _
PS1='$(d=${PWD/#$HOME/"~"};printf %s "[${HOSTNAME%%.*}:${d#${d%?/*/*/*}?/}]") $USER% '
[host:w/maemo/sb2-pathmaps] user% _
All this should also work in bash, though bash has its own prompt escapes (eg. h for ${HOSTNAME%%.*}) and path shortening mechanism (with PROMPT_DIRTRIM).
Also, the nastier variant will be really nasty, because bash, unlike ksh93, will fork() a separate process for each $(...; printf ...) command substitution, even if it contains only builtins. This also holds true for pdksh derived shells, like mksh.
zsh has prompt escapes quite similar but not identical to tcsh:
zsh$ PS1='[%m:%3c] %n%# '
[host:share/doc/libnl-3-dev] user% _
answered 3 hours ago
mosvymosvy
10.6k11338
edited 41 mins ago
answered 3 hours ago
mosvymosvy
10.6k11338
answered 3 hours ago
mosvymosvy
10.6k11338
answered 3 hours ago
mosvymosvy
10.6k11338
10.6k11338
add a comment |
add a comment |
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