Interviewfreak http://interviewfreak.com Collection of technical interview questions for jobs Tue, 03 Jan 2012 08:54:07 +0000 en hourly 1 How to pass arguments in shell script? http://interviewfreak.com/2011/11/15/how-to-pass-arguments-in-shell-script/ http://interviewfreak.com/2011/11/15/how-to-pass-arguments-in-shell-script/#comments Tue, 15 Nov 2011 11:21:09 +0000 admin http://interviewfreak.com/?p=1835 more]]>

you can pass arguments in shell script and refer them as $1 $2 etc

]]> http://interviewfreak.com/2011/11/15/how-to-pass-arguments-in-shell-script/feed/ 0 How to execute a .bat file in cygwin? http://interviewfreak.com/2011/11/15/how-to-call-a-bat/ http://interviewfreak.com/2011/11/15/how-to-call-a-bat/#comments Tue, 15 Nov 2011 11:17:59 +0000 admin http://interviewfreak.com/?p=1829 more]]>

You can call a batch file directly in cygwin as below

sh pdf.bat

 

You can pass arguments as well.

How to execute a .bat file in cygwin?

How to call bat file in cygwin?

]]> http://interviewfreak.com/2011/11/15/how-to-call-a-bat/feed/ 0 What is GREP command? http://interviewfreak.com/2011/11/10/what-is-grep-command/ http://interviewfreak.com/2011/11/10/what-is-grep-command/#comments Thu, 10 Nov 2011 11:42:12 +0000 admin http://interviewfreak.com/?p=1826 more]]>

GREP is a command-line text-search utility originally written for Unix. The grep command searches files or standard input globally for lines matching a given regular expression, and prints the lines to the program’s standard output

]]> http://interviewfreak.com/2011/11/10/what-is-grep-command/feed/ 0 How to search a file in linux/unix? http://interviewfreak.com/2011/11/10/how-to-search-a-file-in-linuxunix/ http://interviewfreak.com/2011/11/10/how-to-search-a-file-in-linuxunix/#comments Thu, 10 Nov 2011 11:41:14 +0000 admin http://interviewfreak.com/?p=1824 more]]>

Find

find / -name game

Looks for a file named “game” starting at the root directory (searching all directories including mounted filesystems). The `-name’ option makes the search case sensitive. You can use the `-iname’ option to find something regardless of case.

find /home -user joe

Find every file under the directory /home owned by the user joe.

find /usr -name *stat

Find every file under the directory /usr ending in “stat”.

]]> http://interviewfreak.com/2011/11/10/how-to-search-a-file-in-linuxunix/feed/ 0 How do you tell the amount of free disk space left on a volume? http://interviewfreak.com/2011/11/10/how-do-you-tell-the-amount-of-free-disk-space-left-on-a-volume/ http://interviewfreak.com/2011/11/10/how-do-you-tell-the-amount-of-free-disk-space-left-on-a-volume/#comments Thu, 10 Nov 2011 11:40:33 +0000 admin http://interviewfreak.com/?p=1822 more]]>

Df or df -h for human readable format

]]> http://interviewfreak.com/2011/11/10/how-do-you-tell-the-amount-of-free-disk-space-left-on-a-volume/feed/ 0 Give an example of set of shell commands that will give you the number of files in a directory ? http://interviewfreak.com/2011/11/10/give-an-example-of-set-of-shell-commands-that-will-give-you-the-number-of-files-in-a-directory/ http://interviewfreak.com/2011/11/10/give-an-example-of-set-of-shell-commands-that-will-give-you-the-number-of-files-in-a-directory/#comments Thu, 10 Nov 2011 11:39:18 +0000 admin http://interviewfreak.com/?p=1820 more]]>

ls | wc -w or ls -l | wc -l

]]> http://interviewfreak.com/2011/11/10/give-an-example-of-set-of-shell-commands-that-will-give-you-the-number-of-files-in-a-directory/feed/ 0 How you can see permission attribute for file? http://interviewfreak.com/2011/11/10/how-you-can-see-permission-attribute-for-file/ http://interviewfreak.com/2011/11/10/how-you-can-see-permission-attribute-for-file/#comments Thu, 10 Nov 2011 11:38:21 +0000 admin http://interviewfreak.com/?p=1818 more]]>

ls -l

]]> http://interviewfreak.com/2011/11/10/how-you-can-see-permission-attribute-for-file/feed/ 0 How do you list files in Linux? http://interviewfreak.com/2011/11/10/how-do-you-list-files-in-linux/ http://interviewfreak.com/2011/11/10/how-do-you-list-files-in-linux/#comments Thu, 10 Nov 2011 11:37:36 +0000 admin http://interviewfreak.com/?p=1816 more]]>

ls

]]> http://interviewfreak.com/2011/11/10/how-do-you-list-files-in-linux/feed/ 0 How to call a shell script on command prompt? http://interviewfreak.com/2011/11/10/how-to-call-a-shell-script-on-command-prompt/ http://interviewfreak.com/2011/11/10/how-to-call-a-shell-script-on-command-prompt/#comments Thu, 10 Nov 2011 11:35:49 +0000 admin http://interviewfreak.com/?p=1814 more]]>

sh xyz.sh

]]> http://interviewfreak.com/2011/11/10/how-to-call-a-shell-script-on-command-prompt/feed/ 0 What is the difference among “dropping a table”, “truncating a table” and “deleting all records” from a table? http://interviewfreak.com/2011/11/10/what-is-the-difference-among-dropping-a-table-truncating-a-table-and-deleting-all-records-from-a-table/ http://interviewfreak.com/2011/11/10/what-is-the-difference-among-dropping-a-table-truncating-a-table-and-deleting-all-records-from-a-table/#comments Thu, 10 Nov 2011 11:33:45 +0000 admin http://interviewfreak.com/?p=1811 more]]>
  • Dropping:  (Table structure + Data are deleted), Invalidates the dependent objects, Drops the indexes
  • Truncating:  (Data alone deleted), Performs an automatic commit, faster than delete. He operation cannot be rolled back and no triggers will be fired.
  • Delete: (Data alone deleted), doesn’t perform automatic commit. We can put where clause
]]> http://interviewfreak.com/2011/11/10/what-is-the-difference-among-dropping-a-table-truncating-a-table-and-deleting-all-records-from-a-table/feed/ 0