Grep command in Linux

<style>/*
<link href='https://www.blogger.com/dyn-css/authorization.css?targetBlogID=5040055966939796439&zx=e45cc94f-51eb-45de-9932-1c2c22adddde' media='none' onload='if(media!='all')media='all'' rel='stylesheet'/><noscript><link href='https://www.blogger.com/dyn-css/authorization.css?targetBlogID=5040055966939796439&zx=e45cc94f-51eb-45de-9932-1c2c22adddde' rel='stylesheet'/></noscript>
<meta name='google-adsense-platform-account' content='ca-host-pub-1556223355139109'/>
<meta name='google-adsense-platform-domain' content='blogspot.com'/>

</head>
<body>
*/</style>

<style>/*

<script type="text/javascript" src="https://www.blogger.com/static/v1/widgets/1704033933-widgets.js"></script>
<script type='text/javascript'>
window['__wavt'] = 'AOuZoY7Jh5Aub9SfyZK0MoN86dE71FYq8w:1740312373048';_WidgetManager._Init('//www.blogger.com/rearrange?blogID\x3d5040055966939796439','//www.mkbhru.com/2023/05/grep-command-in-linux.html','5040055966939796439');
_WidgetManager._SetDataContext([{'name': 'blog', 'data': {'blogId': '5040055966939796439', 'title': 'mkbhru', 'url': 'http://www.mkbhru.com/2023/05/grep-command-in-linux.html', 'canonicalUrl': 'http://www.mkbhru.com/2023/05/grep-command-in-linux.html', 'homepageUrl': 'http://www.mkbhru.com/', 'searchUrl': 'http://www.mkbhru.com/search', 'canonicalHomepageUrl': 'http://www.mkbhru.com/', 'blogspotFaviconUrl': 'http://www.mkbhru.com/favicon.ico', 'bloggerUrl': 'https://www.blogger.com', 'hasCustomDomain': true, 'httpsEnabled': false, 'enabledCommentProfileImages': true, 'gPlusViewType': 'FILTERED_POSTMOD', 'adultContent': false, 'analyticsAccountNumber': '', 'encoding': 'UTF-8', 'locale': 'en', 'localeUnderscoreDelimited': 'en', 'languageDirection': 'ltr', 'isPrivate': false, 'isMobile': false, 'isMobileRequest': false, 'mobileClass': '', 'isPrivateBlog': false, 'isDynamicViewsAvailable': true, 'feedLinks': '\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22mkbhru - Atom\x22 href\x3d\x22http://www.mkbhru.com/feeds/posts/default\x22 /\x3e\n\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/rss+xml\x22 title\x3d\x22mkbhru - RSS\x22 href\x3d\x22http://www.mkbhru.com/feeds/posts/default?alt\x3drss\x22 /\x3e\n\x3clink rel\x3d\x22service.post\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22mkbhru - Atom\x22 href\x3d\x22https://www.blogger.com/feeds/5040055966939796439/posts/default\x22 /\x3e\n\n\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22mkbhru - Atom\x22 href\x3d\x22http://www.mkbhru.com/feeds/9109687205573750569/comments/default\x22 /\x3e\n', 'meTag': '', 'adsenseHostId': 'ca-host-pub-1556223355139109', 'adsenseHasAds': false, 'adsenseAutoAds': false, 'boqCommentIframeForm': true, 'loginRedirectParam': '', 'view': '', 'dynamicViewsCommentsSrc': '//www.blogblog.com/dynamicviews/4224c15c4e7c9321/js/comments.js', 'dynamicViewsScriptSrc': '//www.blogblog.com/dynamicviews/c320e3f9c6626331', 'plusOneApiSrc': 'https://apis.google.com/js/platform.js', 'disableGComments': true, 'interstitialAccepted': false, 'sharing': {'platforms': [{'name': 'Get link', 'key': 'link', 'shareMessage': 'Get link', 'target': ''}, {'name': 'Facebook', 'key': 'facebook', 'shareMessage': 'Share to Facebook', 'target': 'facebook'}, {'name': 'BlogThis!', 'key': 'blogThis', 'shareMessage': 'BlogThis!', 'target': 'blog'}, {'name': 'X', 'key': 'twitter', 'shareMessage': 'Share to X', 'target': 'twitter'}, {'name': 'Pinterest', 'key': 'pinterest', 'shareMessage': 'Share to Pinterest', 'target': 'pinterest'}, {'name': 'Email', 'key': 'email', 'shareMessage': 'Email', 'target': 'email'}], 'disableGooglePlus': true, 'googlePlusShareButtonWidth': 0, 'googlePlusBootstrap': '\x3cscript type\x3d\x22text/javascript\x22\x3ewindow.___gcfg \x3d {\x27lang\x27: \x27en\x27};\x3c/script\x3e'}, 'hasCustomJumpLinkMessage': false, 'jumpLinkMessage': 'Read more', 'pageType': 'item', 'postId': '9109687205573750569', 'postImageThumbnailUrl': 'https://blogger.googleusercontent.com/img/a/AVvXsEhEOT7NX5VRMD2etDQqGiT_uPJHcutPvSdhRsO0efduKUXqVVygxGATK6mKz8LcweY5ACk87b4hTX_Doray2U1zcmzV-O5URSFD14hntXwJea6h2RoUg1RdU8Qvpb_3vUiewF1mC5Od2A7kyU68zJcQIF7X7Z7TqQJHWTwJSu-xJAJ-6Wzmv_fSlT8Ynw\x3ds72-w640-c-h112', 'postImageUrl': 'https://blogger.googleusercontent.com/img/a/AVvXsEhEOT7NX5VRMD2etDQqGiT_uPJHcutPvSdhRsO0efduKUXqVVygxGATK6mKz8LcweY5ACk87b4hTX_Doray2U1zcmzV-O5URSFD14hntXwJea6h2RoUg1RdU8Qvpb_3vUiewF1mC5Od2A7kyU68zJcQIF7X7Z7TqQJHWTwJSu-xJAJ-6Wzmv_fSlT8Ynw\x3dw640-h112', 'pageName': 'Grep command in Linux', 'pageTitle': 'mkbhru: Grep command in Linux'}}, {'name': 'features', 'data': {}}, {'name': 'messages', 'data': {'edit': 'Edit', 'linkCopiedToClipboard': 'Link copied to clipboard!', 'ok': 'Ok', 'postLink': 'Post Link'}}, {'name': 'template', 'data': {'name': 'custom', 'localizedName': 'Custom', 'isResponsive': true, 'isAlternateRendering': false, 'isCustom': true}}, {'name': 'view', 'data': {'classic': {'name': 'classic', 'url': '?view\x3dclassic'}, 'flipcard': {'name': 'flipcard', 'url': '?view\x3dflipcard'}, 'magazine': {'name': 'magazine', 'url': '?view\x3dmagazine'}, 'mosaic': {'name': 'mosaic', 'url': '?view\x3dmosaic'}, 'sidebar': {'name': 'sidebar', 'url': '?view\x3dsidebar'}, 'snapshot': {'name': 'snapshot', 'url': '?view\x3dsnapshot'}, 'timeslide': {'name': 'timeslide', 'url': '?view\x3dtimeslide'}, 'isMobile': false, 'title': 'Grep command in Linux', 'description': '\xa0Grep stands for: Global Regular Expression Print its a filter command in linux. search for patterns Here I have clubbed it with ls using pi...', 'featuredImage': 'https://blogger.googleusercontent.com/img/a/AVvXsEhEOT7NX5VRMD2etDQqGiT_uPJHcutPvSdhRsO0efduKUXqVVygxGATK6mKz8LcweY5ACk87b4hTX_Doray2U1zcmzV-O5URSFD14hntXwJea6h2RoUg1RdU8Qvpb_3vUiewF1mC5Od2A7kyU68zJcQIF7X7Z7TqQJHWTwJSu-xJAJ-6Wzmv_fSlT8Ynw\x3dw640-h112', 'url': 'http://www.mkbhru.com/2023/05/grep-command-in-linux.html', 'type': 'item', 'isSingleItem': true, 'isMultipleItems': false, 'isError': false, 'isPage': false, 'isPost': true, 'isHomepage': false, 'isArchive': false, 'isLabelSearch': false, 'postId': 9109687205573750569}}, {'name': 'widgets', 'data': [{'title': 'Upload Image', 'type': 'Image', 'sectionId': 'upload-image', 'id': 'Image10'}, {'title': 'Logo', 'type': 'HTML', 'sectionId': 'header-main', 'id': 'HTML10'}, {'title': 'Icons, Dark, Search', 'type': 'LinkList', 'sectionId': 'header-main', 'id': 'LinkList10'}, {'title': 'Menu', 'type': 'LinkList', 'sectionId': 'header-main', 'id': 'LinkList11'}, {'title': 'Featured Post', 'type': 'FeaturedPost', 'sectionId': 'before-blog', 'id': 'FeaturedPost1', 'postId': '8027733613145223633'}, {'title': 'Blog Posts', 'type': 'Blog', 'sectionId': 'blog-post', 'id': 'Blog1', 'posts': [{'id': '9109687205573750569', 'title': 'Grep command in Linux', 'featuredImage': 'https://blogger.googleusercontent.com/img/a/AVvXsEhEOT7NX5VRMD2etDQqGiT_uPJHcutPvSdhRsO0efduKUXqVVygxGATK6mKz8LcweY5ACk87b4hTX_Doray2U1zcmzV-O5URSFD14hntXwJea6h2RoUg1RdU8Qvpb_3vUiewF1mC5Od2A7kyU68zJcQIF7X7Z7TqQJHWTwJSu-xJAJ-6Wzmv_fSlT8Ynw\x3dw640-h112', 'showInlineAds': false}], 'headerByline': {'regionName': 'header1', 'items': [{'name': 'share', 'label': ''}, {'name': 'author', 'label': 'By'}, {'name': 'timestamp', 'label': 'd MMM, yyyy'}]}, 'footerBylines': [{'regionName': 'footer1', 'items': [{'name': 'comments', 'label': 'Comment'}, {'name': 'icons', 'label': ''}]}, {'regionName': 'footer2', 'items': [{'name': 'labels', 'label': ''}]}], 'allBylineItems': [{'name': 'share', 'label': ''}, {'name': 'author', 'label': 'By'}, {'name': 'timestamp', 'label': 'd MMM, yyyy'}, {'name': 'comments', 'label': 'Comment'}, {'name': 'icons', 'label': ''}, {'name': 'labels', 'label': ''}]}, {'title': '#You may also like', 'type': 'HTML', 'sectionId': 'ads-post', 'id': 'HTML15'}, {'title': 'Popular Posts', 'type': 'PopularPosts', 'sectionId': 'sidebar-static', 'id': 'PopularPosts10', 'posts': [{'title': 'make dnf faster', 'id': 8027733613145223633}, {'title': 'Install Docker in Linux [2023] Ubuntu, LinuxMint', 'id': 6460800046262147291}, {'title': 'MySql Tutorial using terminal', 'id': 701689472279073733}, {'title': 'Docker Tutorial for Beginners (Programming with Mosh)', 'id': 6485727402538361927}, {'title': 'Node.js Tutorial Linux', 'id': 5711670273292150072}]}, {'title': 'Categories', 'type': 'Label', 'sectionId': 'sidebar-static', 'id': 'Label10'}, {'title': 'Hashtag', 'type': 'Label', 'sectionId': 'sidebar-static', 'id': 'Label11'}, {'title': '#Recent Post', 'type': 'HTML', 'sectionId': 'sidebar-static', 'id': 'HTML19'}, {'title': 'About this', 'type': 'HTML', 'sectionId': 'footer-widget', 'id': 'HTML21'}, {'title': 'Follow Me', 'type': 'LinkList', 'sectionId': 'footer-widget', 'id': 'LinkList14'}, {'title': 'Newsletter', 'type': 'HTML', 'sectionId': 'footer-widget', 'id': 'HTML22'}, {'title': 'Copyright', 'type': 'HTML', 'sectionId': 'copyright', 'id': 'HTML23'}, {'title': 'SVG Icons', 'type': 'HTML', 'sectionId': 'jet-options', 'id': 'HTML24'}]}]);
_WidgetManager._RegisterWidget('_ImageView', new _WidgetInfo('Image10', 'upload-image', document.getElementById('Image10'), {'resize': false}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML10', 'header-main', document.getElementById('HTML10'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList10', 'header-main', document.getElementById('LinkList10'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList11', 'header-main', document.getElementById('LinkList11'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_FeaturedPostView', new _WidgetInfo('FeaturedPost1', 'before-blog', document.getElementById('FeaturedPost1'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_BlogView', new _WidgetInfo('Blog1', 'blog-post', document.getElementById('Blog1'), {'cmtInteractionsEnabled': false, 'lightboxEnabled': true, 'lightboxModuleUrl': 'https://www.blogger.com/static/v1/jsbin/2332438401-lbx.js', 'lightboxCssUrl': 'https://www.blogger.com/static/v1/v-css/1964470060-lightbox_bundle.css'}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML15', 'ads-post', document.getElementById('HTML15'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_PopularPostsView', new _WidgetInfo('PopularPosts10', 'sidebar-static', document.getElementById('PopularPosts10'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LabelView', new _WidgetInfo('Label10', 'sidebar-static', document.getElementById('Label10'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LabelView', new _WidgetInfo('Label11', 'sidebar-static', document.getElementById('Label11'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML19', 'sidebar-static', document.getElementById('HTML19'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML21', 'footer-widget', document.getElementById('HTML21'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList14', 'footer-widget', document.getElementById('LinkList14'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML22', 'footer-widget', document.getElementById('HTML22'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML23', 'copyright', document.getElementById('HTML23'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML24', 'jet-options', document.getElementById('HTML24'), {}, 'displayModeFull'));
</script>
</body>
*/</style>