quoting

I have this following shell command: ssh user@host "df | grep /dev/ | \ awk 'BEGIN{print "DISK", "%USAGE", "STATUS"} {split($5, a, "%"); \ var="GREEN"; print $1, $5, var}' | column -t" I need to run this over ssh but I get syntax error due to the presence of nested double and single quotes. I tried the escape characters for before the beginning and ending of the quotes but it did not solve the problem. However, on local system running this will give the following output: $ df | grep /dev/ | \ awk 'BEGIN{print "DISK", "%USAGE", "STATUS"} {split($5, a, "%"); \ var="GREEN"; print $1, $5, var}' |

Calling .sh(shell script) with the required parameters as below :- sh home/example.sh --context_param dbUserName=username --context_param dbPassword=exam!ple##### --context_param resultDate=2017-01-13 calling example.sh with paramters dbUsername and password but getting following error:- -bash: !ple#####: event not found I think special characters restrict the command to execute. Then how i have to pass the special characters. Any help will be appreciable. Change the line, dbPassword=exam!ple##### to, dbPassword='exam!ple#####' to avoid ! (history-expansion) being treated specially in bash

Explaining the question through examples... Demonstrates that the single-quotes after --chapters is gets escaped when the variable is expanded (I didn't expect this): prompt@ubuntu:/my/scripts$ cat test1.sh #!/bin/bash actions="--tags all:" actions+=" --chapters ''" mkvpropedit "$1" $actions prompt@ubuntu:/my/scripts$ ./test1.sh some.mkv Error: Could not open '''' for reading. And now for some reason mkvpropedit receives the double quotes as part of the filename (I didn't expect this either): prompt@ubuntu:/my/scripts$ cat test1x.sh #!/bin/bash command="mkvpropedit \"$1\"" command+=" --tags

This question already has an answer here: How to escape os.system() calls? 10 answers Is there anything in the Python standard library that will properly parse/unparse strings for using in shell commands? I'm looking for the python analog to perl's String::ShellQuote::shell_quote : $ print String::ShellQuote::shell_quote("hello", "stack", "overflow's", "quite", "cool") hello stack 'overflow'\''s' quite cool And, even more importantly, something which will work in the reverse direction (take a string and decompose it into a list). pipes.quote is now shlex.quote in python 3. It is easy enough to

Is there a native function or solid class/library for writing an array as a line in a CSV file without enclosures? fputcsv will default to " if nothing is passed in for the enclosure param. Google is failing me (returning results for a whole bunch of pages about fputcsv ), and PEAR's libraries do more or less the same things as fputcsv . Something that works exactly like fputcsv , but will allow the fields to remain unquoted. currently: "field 1","field 2",field3hasNoSpaces desired: field 1,field 2,field3hasNoSpaces The warnings about foregoing enclosures are valid, but you've said they don't