bash - Find out which package I have to install on a Linux system -

-

i made bash script install software package on linux system. there 4 packages can use install software:

  1. x86.deb
  2. x86.rpm
  3. x86_64.deb
  4. x86_64.rpm

i know when install package on linux server manually, find out "automatically" (in bash script) 1 have install.

is there command find out? know there way find out architecture (32-bit or 64-bit) via "arch" command, not know how find out package need.

uname -m or arch gives architecture (x86_64 or similar).

you can figure out whether system based on rpm or deb (e. g. ubuntu deb-based) asking both variants package installed /bin/ls:

dpkg -s /bin/ls

will print

coreutils: /bin/ls

on deb-based system.

rpm -q -f /bin/ls

will print

coreutils-5.97-23.el5_6.4

on rpm-based system (with different version numbers).

on "wrong" system each of these give error message instead.

if dpkg -s /bin/ls >/dev/null 2>&1   case "$(arch)" in     x86_64)       sudo dpkg -i x86_64.deb;;     i368)       sudo dpkg -i x86.deb;;     *)       echo "don't know how handle $(arch)"       exit 1       ;;   esac elif rpm -q -f /bin/ls >/dev/null 2>&1   case "$(arch)" in     x86_64)       sudo rpm -i x86_64.rpm;;     i368)       sudo rpm -i x86.rpm;;     *)       echo "don't know how handle $(arch)"       exit 1       ;;   esac else   echo "don't know package system (neither rpm nor deb)."   exit 1 fi

of course makes sense in case know then, i. e. if know package installed on package system architecture.


Comments

Post a Comment

Popular posts from this blog

python - pip install -U PySide error -

-
does know how avoid following error when running pip install -u pyside per official website instructions here: https://pypi.python.org/pypi/pyside/#installing-pyside-on-a-mac-os-x-system note have done brew install qt successfully. you using pip version 7.0.3, version 7.1.2 available. should consider upgrading via 'pip install --upgrade pip' command. collecting pyside using cached pyside-1.2.4.tar.gz installing collected packages: pyside running setup.py install pyside complete output command /applications/anaconda/bin/python -c "import setuptools, tokenize;__file__='/private/var/folders/dy/ttgqhqqx3g9bsbsnqnxsk2z80000gq/t/pip-build-cpxemt/pyside/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/dy/ttgqhqqx3g9bsbsnqnxsk2z80000gq/t/pip-0r7hri-record/install-record.txt --single-version-externally-managed --compile:
Read more

arrays - C++ error: a brace-enclosed initializer is not allowed here before ‘{’ token -

-
simple question: i'm trying initialize array within c++ class declaration: using namespace std; #include <string> class myclass{ public: string myarray[] = {"a","b","c"}; }; and i'm getting error: error: brace-enclosed initializer not allowed here before ‘{’ token no, without complied c++11 compiler, cannot initialize member array in declaration. have initialize array member in constructor. , don't use open array if know number of elements initialize array.
Read more

cytoscape.js - How to add nodes to Dagre layout with Cytoscape -

-
i trying add nodes dagre graph through cityscape.js. problem nodes not painted. code have: cy.add({ group: "nodes", data: { id:"n0",name:"n0",weight: 75 }, }); $.ajax(url).done(function(jsontree){ var newnodes=[]; for(var i=1;i<6;i++){ //var child = jsontree.result[i]; newnodes.push( { group: "nodes", data: { id: "n"+i, name:"n"+i}}, { group: "edges", data: { id: "e"+i, source: "n0", target: "n"+i } } ); } cy.add(newnodes); any ideas? have used loaded function reload graph not work. not know if have use specific function reload graph. thank in advance. you need add positions new nodes. cytoscape.js docs : it important note positions of newly added nodes must defined when calling cy.add(). nodes can not placed in graph without valid position — otherwise not displayed. yo
Read more