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From: Eric Cook <llua@gmx.com>
To: zsh-users@zsh.org
Subject: Re: Alias help
Date: Mon, 26 Apr 2021 19:15:15 -0400	[thread overview]
Message-ID: <a08205a9-64fc-56a2-c06c-5a1914f1c8ff@gmx.com> (raw)
In-Reply-To: <82B6395B-6043-42A1-A3FD-8B4F42C3A756@iu.edu>

On 4/26/21 6:55 PM, Hoji, Aki wrote:
> alias pu ="pip3 list -o | sed "1,2 d" |cut -d ' ' -f1 |  xargs -n1 pip3 install -U”

As a shell function:
pu() {                                                                                                                 ~
   pip3 list -o   |
   sed "1,2 d"    |
   cut -d ' ' -f1 |
   xargs -n1 pip3 install -U

While not to the degree of say python, whitespace matters often in shell;
You have an extra space after the name of the alias pu, so the =word triggered a different
feature of zsh that expands the path to a command. in this case "pip3 list -o | sed 1,2"
once you remove the space you still have the problem of not quoting correctly.

alias pu='pip3 list -o | sed "1,2 d" |cut -d '\'' '\'' -f1 |  xargs -n1 pip3 install -U'

Is how to quote that command properly, which is less readable than a function is in my opinion.

  reply	other threads:[~2021-04-26 23:16 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-26 22:55 Hoji, Aki
2021-04-26 23:15 ` Eric Cook [this message]
2021-04-27  7:10   ` zzapper
2021-04-27 20:41     ` Bart Schaefer
2021-04-29 13:30     ` Daniel Shahaf
2021-04-29 13:55       ` zzapper
2021-04-29 14:13         ` Daniel Shahaf
2021-04-27 13:06   ` Akihiko Hohji

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