AB initio

 UNIX 1. What is ls –ltra ls lists the files in the current working directory - but if another directory is specified, then ls will  list the files there, and in fact the user may specify any list of files and directories to be listed. Options:  a) - l : long format, displaying Unix file types, permissions, number of hard links, owner,  group, size, last-modified date and filename b) -t : sort the list of files by modification time.(newest first)  c) -a : lists all files in the given directory, including those whose names start with "."  (Which are hidden files in Unix). By default, these files are excluded from the list. d) -r : will reverse the sorting order. 2. How to rename a file abc.dat to xyz.dat  $ mv abc.dat xyz.dat 3. Create a file with time stamp 2015-jan-15  $ touch -t 1501150808 xyz.dat 4. How to create empty files abc.dat and xyz.dat $ touch abc.dat $ touch xyz.dat 5. Remove a) All files in current directory $ rm * b) All files in current directory (ask confirma

    Abinitio Scenario's 1. Read each value and find sum. Input             12345             1234             123             12             1 Output             15             10             6             3             1 Code -  Input File --> Reformat --> Output File 2. Find the sum of runs in each over. Input Output Code -  Input File --> Rollup with key Change option --> Output File 3.   Concatenate the over value according to the given runs. Input Output Code -  Input File --> Reformat --> Output File 4.    Input :            chennai    bangalore 300            bangalore chennai 300            chennai    bangalore 300            chennai    trichy        200            trichy       chennai     200 Output :               chennai    trichy    200            bangalore chennai 300 Code -  Input File --> Reformat --> Sort --> Dedup Sort --> Output File Input File dml  -              record                     string(" ") city_1;