tag:blogger.com,1999:blog-36825750Wed, 02 Oct 2024 15:35:42 +0000Linux/Unixhttp://ameypalyekar.blogspot.com/noreply@blogger.com (Unknown)Blogger7125tag:blogger.com,1999:blog-36825750.post-3148301084977029357Sat, 21 Apr 2007 17:07:00 +00002007-04-22T19:02:34.271-07:00Linux/UnixMore File Utilitiescatcat filename1To print contents of the file.cutcut-f 1 indexextract column from a file. In this case we specify to extract first column from index file.prints to standard output.But can be redirected to some other file as shown below;cut -f 2 index > worksdoesn't alter original file, regards column as seprated by spaces.cut -d , -f 1 indexuse -d option to change delimiter to http://ameypalyekar.blogspot.com/2007/04/linux-commands-references-iii.htmlnoreply@blogger.com (Unknown)23tag:blogger.com,1999:blog-36825750.post-8291638659586358031Sat, 21 Apr 2007 06:07:00 +00002007-04-24T19:25:27.549-07:00Linux/UnixAwk language is very powerful component of unix system.It is used for data manipulation tasks, such as extracting fields froma line of input.The awk language makes assumption about the format of its inputwhich provide you with the ability to make simple programs. Itassumes input is ASCII text, input can be organized into linesor records, records can be organized into fields. An awk processes http://ameypalyekar.blogspot.com/2007/04/awk.htmlnoreply@blogger.com (Unknown)0tag:blogger.com,1999:blog-36825750.post-8102341945131909578Sat, 21 Apr 2007 04:23:00 +00002007-04-20T22:03:37.361-07:00Linux/UnixAllows to create alternate fielname for you files, by associating multiple directoryentries with same inode.One of the fields in inode called link count field is used to keep track of number ofentries that refer to same inode. Links can also be useful to provide an alternativename in order to simplify typing of long path name.There are two kind of links: Hard links Soft Links -> Hard http://ameypalyekar.blogspot.com/2007/04/links.htmlnoreply@blogger.com (Unknown)0tag:blogger.com,1999:blog-36825750.post-2166907699077649048Sat, 21 Apr 2007 03:38:00 +00002007-04-20T22:00:19.192-07:00Linux/UnixEvery file that is created in Unix has correspomding Inode (information node).Inode is data structure on disk that contains information about file or directory.It indicates physical location or data blocks. It does not contain names of files, butcontains ownership information & permission details includes - file type, file size,last accessed, modified when inodes themselves were last modified. http://ameypalyekar.blogspot.com/2007/04/inodes.htmlnoreply@blogger.com (Unknown)0tag:blogger.com,1999:blog-36825750.post-1536572179549255643Mon, 09 Apr 2007 17:05:00 +00002007-04-15T04:09:50.237-07:00Linux/UnixFile Utilitiescmp - compares two filescmp file1 folder1/file2no command output means file are identicalalso compares the punctuation marksreports only the fist difference found within the files.diff -diff path/file1 path2/file2reports detail differences between two filesno command output means files are identicalsample output legends:1c2 - line 1 from file1 changed to line 2 in file20a1 - add http://ameypalyekar.blogspot.com/2007/04/linux-commands-references-ii.htmlnoreply@blogger.com (Unknown)1tag:blogger.com,1999:blog-36825750.post-3072149148369515060Sat, 07 Apr 2007 17:13:00 +00002007-04-11T04:46:08.191-07:00Linux/UnixBasic File/Text ManipulationcatTo ‘concatenate’ files and then print on the standard output. i.e. cat file1 file2 will print out the contents of ‘file1’ followed by ‘file2’ls To list the contents of the directory specified by ‘path’. If no path is specified, then list the contents of the current directory.less To open ‘file’ in a primitive text reader that will allow you to scroll through a file http://ameypalyekar.blogspot.com/2007/04/linux-commands-references.htmlnoreply@blogger.com (Unknown)1tag:blogger.com,1999:blog-36825750.post-116219650971731226Mon, 30 Oct 2006 08:13:00 +00002007-04-08T08:22:57.352-07:00This is going to be most happening world, look out this corner will be updated soon.I will share here my very best that i learned over the years, the good things that i cherished with care.UNDER CONSTRUCTIONhttp://ameypalyekar.blogspot.com/2006/10/x3m_30.htmlnoreply@blogger.com (Unknown)0