09-22-2019
The mentioned line is the trickiest thing of all.
You need to know what that eval is actually for. Eval adds an additional evaluation round(so I get from content of $i which may be the number "3" to the content of the following parameter $4). An additional evaluation round means that quotes are removed at the first pass, so I had to add protected quotes, which become normal quotes in the second pass.
Read about eval function in the bash manpage.
---
The question "it does not work, tell me the error" drove me away from giving any further answer, because I suspected lack of even minimal initiative/competence to investigate the problem.
The second question was very specific and showed much more of that initiative/competence, so I'm motivated to answer again.
It's no problem with having low competence level - everyone starts from nothing. But I'm not willing to explain at that level.
Last edited by stomp; 09-22-2019 at 06:18 PM..
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I couldn't find an existing thread that addressed this question, so hopefully this isn't redundant with anything previously posted. Here goes:
I am writing a C-Shell script that runs a program that takes an arbitrary number of parameters:
myprog -a file1 \
-b file2 \
-c file3 ... \
-n... (2 Replies)
Discussion started by: cmcnorgan
2 Replies
2. Shell Programming and Scripting
I need help in writing a BASH SCRIPT of ls command.
for example:
$ ./do_ls.sh files
f1.txt
f2.jpeg
f3.doc
$ ./do_ls.sh dirs
folder1
folder2
folder3
My attempt:
#!/bin/bash
#
if test $# -d file
then
echo $dirs
else (3 Replies)
Discussion started by: above8k
3 Replies
3. Shell Programming and Scripting
Hello,
I would like to modify an existing script of mine that uses a manually defined "MCVERSION" variable and make it define that variable instead based on this JSON file stored online:
https://s3.amazonaws.com/Minecraft.Download/versions/versions.json
Within that JSON, I 'm looking for... (4 Replies)
Discussion started by: nbsparks
4 Replies
4. Shell Programming and Scripting
All,
Have a weird issue where i need to generate a report from GitHub monthly detailing user accounts and the last time they logged in. I'm using a windows box to do this (work issued) and would like to know if anyone has any experience scripting for GitAPI using windows / cygwin / powershell?... (9 Replies)
Discussion started by: ChocoTaco
9 Replies
5. Shell Programming and Scripting
Is there a Unix or Perl script that converts JSON files to CSV or tab delimited format? We are running AIX 6.1.
Thanks in advance! (1 Reply)
Discussion started by: warpmail
1 Replies
6. Shell Programming and Scripting
I am trying to automate editing of a json file using bash script.
The file I initially receive is
{
"appMap": {
"URL1": {
"name": "a"
},
"URL2": {
"name": "b"
},
"URL3": {
"name": "c"
},
}
WHat I would like to do is replace... (5 Replies)
Discussion started by: Junaid Subhani
5 Replies
7. UNIX for Beginners Questions & Answers
i have a json data that looks like this:
{
"ip": "16.66.35.10",
"hostname": "No Hostname",
"city": "Stepney",
"region": "England",
"country": "GB",
"loc": "51.57,-0.0333",
"org": "AS6871 British Telecommunications PLC",
"postal": "E1"
}
im looking for a way to assign... (9 Replies)
Discussion started by: SkySmart
9 Replies
8. Shell Programming and Scripting
Hello guys,
I want to parse a JSON file in order to get the data in a table form.
My JSON file is like this:
{
"document":{
"page":
},
{
"column":
}
]
},
{
... (6 Replies)
Discussion started by: Gescad
6 Replies
9. Shell Programming and Scripting
One of the great thing about unix is the ability to pipe multiple programs together to manipulate data. Plain, unstructured text is the most common type of data that is passed between programs, but these days JSON is becoming more popular.
I thought it would be fun to pipe together some command... (1 Reply)
Discussion started by: kbrazil
1 Replies
10. UNIX for Beginners Questions & Answers
Hi All,
I am new to shell scripting, Need your help in creating a shell script which converts any unix command output to JSON format output.
example:
sample df -h command ouput :
Filesystem size used avail capacity Mounted
/dev/dsk/c1t0d0s0 8.1G 4.0G 4.0G 50% /... (13 Replies)
Discussion started by: balu1234
13 Replies
LEARN ABOUT REDHAT
uplevel
uplevel(n) Tcl Built-In Commands uplevel(n)
__________________________________________________________________________________________________________________________________________________
NAME
uplevel - Execute a script in a different stack frame
SYNOPSIS
uplevel ?level? arg ?arg ...?
_________________________________________________________________
DESCRIPTION
All of the arg arguments are concatenated as if they had been passed to concat; the result is then evaluated in the variable context indi-
cated by level. Uplevel returns the result of that evaluation.
If level is an integer then it gives a distance (up the procedure calling stack) to move before executing the command. If level consists
of # followed by a number then the number gives an absolute level number. If level is omitted then it defaults to 1. Level cannot be
defaulted if the first command argument starts with a digit or #.
For example, suppose that procedure a was invoked from top-level, and that it called b, and that b called c. Suppose that c invokes the
uplevel command. If level is 1 or #2 or omitted, then the command will be executed in the variable context of b. If level is 2 or #1
then the command will be executed in the variable context of a. If level is 3 or #0 then the command will be executed at top-level (only
global variables will be visible).
The uplevel command causes the invoking procedure to disappear from the procedure calling stack while the command is being executed. In
the above example, suppose c invokes the command
uplevel 1 {set x 43; d}
where d is another Tcl procedure. The set command will modify the variable x in b's context, and d will execute at level 3, as if called
from b. If it in turn executes the command
uplevel {set x 42}
then the set command will modify the same variable x in b's context: the procedure c does not appear to be on the call stack when d is
executing. The command ``info level'' may be used to obtain the level of the current procedure.
Uplevel makes it possible to implement new control constructs as Tcl procedures (for example, uplevel could be used to implement the while
construct as a Tcl procedure).
namespace eval is another way (besides procedure calls) that the Tcl naming context can change. It adds a call frame to the stack to rep-
resent the namespace context. This means each namespace eval command counts as another call level for uplevel and upvar commands. For
example, info level 1 will return a list describing a command that is either the outermost procedure call or the outermost namespace eval
command. Also, uplevel #0 evaluates a script at top-level in the outermost namespace (the global namespace).
SEE ALSO
namespace(n), upvar(n)
KEYWORDS
context, level, namespace, stack frame, variables
Tcl uplevel(n)