quoting

来源： https://stackoverflow.com/questions/43239264/bash-execute-command-with-arguments-in-new-terminal

来源： https://stackoverflow.com/questions/54917110/how-do-i-include-ampersands-in-a-powershell-command-in-a-batch-file

来源： https://stackoverflow.com/questions/54917110/how-do-i-include-ampersands-in-a-powershell-command-in-a-batch-file

问题 Problem Description Using Python 3.7.6 on Windows 10, I'm trying to upgrade a package installed directly from a git repository: pip install --upgrade git+https://url.of.my/py/package.git The installation then fails: ... error: file 'C:\Users\myuser\AppData\Local\Temp\pip-req-build-ip4k0pfs\bin\some-script' does not exist ... As far as I've been able to work out, for the following reason: early on, pip calls git clone -q https://url.of.my/py/package.git 'C:\Users\myuser\AppData\Local\Temp\pip

问题 I have this code that parses and processes normal "f-string" template strings (See the usage part below for an example): from string import Formatter import sys _conversions = {'a': ascii, 'r': repr, 's': str} def z(template, locals_=None): if locals_ is None: previous_frame = sys._getframe(1) previous_frame_locals = previous_frame.f_locals locals_ = previous_frame_locals # locals_ = globals() result = [] parts = Formatter().parse(template) for part in parts: literal_text, field_name, format

问题 This question already has answers here : I just assigned a variable, but echo $variable shows something else (7 answers) Closed 2 years ago . Newbie to bash here. I'm hoping to prepend a single whitespace to a variable in bash, currently I have the following, which doesn't seem to work: space=`printf '%1s' ' '` mystr='hello' mystr="$space$mystr" echo $mystr So instead of printing out "hello", I would like the result to be " hello", which has an additional whitespace at the beginning. What's

问题 I am using Seqeulize with Nodejs. My table name is "Users" and it has a column "userName". I have named the ts vectored column userNameVector. In trying to create the column and set the triggers, I keep getting the error "errorMissingColumn". Apparently it is telling me that my column "userName" doesn't exist but I triple checked and it does. The log from the node console is as follows: Executing (default): ALTER TABLE "Users" ADD COLUMN "userNameVector" TSVECTOR Executing (default): UPDATE

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 10 months ago . I'm new to Ubuntu. I tried to open a file with name which has space in it. I used cd command. it shows bash : cd : too many arguments Whenever a file name has a space in it. It is showing this error. What should I do? 回答1: Use quotes: cd "new folder" or escape the space: cd new\ folder (That being said, cd

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 10 months ago . I'm new to Ubuntu. I tried to open a file with name which has space in it. I used cd command. it shows bash : cd : too many arguments Whenever a file name has a space in it. It is showing this error. What should I do? 回答1: Use quotes: cd "new folder" or escape the space: cd new\ folder (That being said, cd

问题 Consider the following: #!/bin/tcsh set thing = 'marker:echo "quoted argument"' set a = `echo "$thing" | sed 's/\([^:]*\):\(.*\)/\1/'` set b = `echo "$thing" | sed 's/\([^:]*\):\(.*\)/\2/'` echo $a echo $b $b echo "quoted argument" This gives marker echo "quoted argument" "quoted argument" quoted argument If $b is echo "quoted argument" , why does evaluating $b give a different result from echo "quoted argument" ? Since I know tcsh is awful (but it's what I have to use for work), here is the