echo is returning empty Post: 302384478

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returning value from sqlplus

Hi, I need to return one value from sqlplus to UNIX environment. Can anyone give me an example? i.e. select username from v$session where sid=15; This query will return username value which I require in UNIX after exiting from sqlplus. Malay

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Returning a "0" if folder is empty

Hi All, I am trying to force a "0" value if a folder is empty. Is there any unix command i can make use of to force a "0" (zero) ? i tried to use " grep -c * " but the error is " no match "

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how to find empty folders without using -empty

hi all: my solaris FIND does not support find myFolder -type d -empty how can i find the empty folders? thanks!

4. UNIX for Dummies Questions & Answers

What's wrong with this line: if ${TEST:?} ; then echo empty; fi

I want to print "empty" if $TEST is empty. TEST= if ${TEST:?} ; then echo empty; fi But it doesn't work. What's wrong?

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Getting same exit status for empty and non empty file

Hi All, I am checking for a empty input file to do some further action , but I am getting exit status 0 in both the cases , for empty and non empty file both. The value of $? is coming 0 in if part also and else part too. #!/bin/ksh if ]; then echo "data" # exit 0 echo "$?" else...

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Difference between using "echo" builtin and /bin/echo

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How to correctly use an echo inside an echo?

Bit of a weird one i suppose, i want to use an echo inside an echo... For example... i have a script that i want to use to take users input and create another script. Inside this script it creates it also needs to use echos... echo "echo "hello"" >$file echo "echo "goodbye"" >$file ...

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How to echo message when file is empty.

If a file is empty then it must print the message "no data found" eg: if then echo "no data found" your help is really appreciated.

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With that logic this echoes "echo". Question about echo!

echo `echo ` doesn't echoes anything. And it's logic. But echo `echo `echo ` ` does echoes "echo". What's the logic of it? the `echo `echo ` inside of the whole (first) echo, echoes nothing, so the first echo have to echo nothing but echoes "echo" (too much echoing :P):o

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Returning to menu

i have my script all setup but what i was wanting to know is, after a choice has been made on the menu and it completes, what command can i type in to return to the menu of the script. with my script, when a command is finished, it just asks me to input my choice but it doesn't show the menu. any...

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set_color

set_color(1)							       fish							      set_color(1)

NAME

       set_color - set_color - set the terminal color

set_color - set the terminal color
   Synopsis
       set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]

   Description
       Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
       cyan, white and normal.

       o -b, --background Set the background color

       o -c, --print-colors Prints a list of all valid color names

       o -h, --help Display help message and exit

       o -o, --bold Set bold or extra bright mode

       o -u, --underline Set underlined mode

       o -v, --version Display version and exit

       Calling set_color normal will set the terminal color to whatever is the default color of the terminal.

       Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
       font color, while set_color --bold white will result in a white font color.

       Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.

       set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
       incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
       ncurses and recompile fish against it in order to fix this issue.

Version 1.23.1							  Sun Jan 8 2012						      set_color(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

returning value from sqlplus

Discussion started by: malaymaru

2. Shell Programming and Scripting

Returning a "0" if folder is empty

Discussion started by: Raynon

3. UNIX for Dummies Questions & Answers

how to find empty folders without using -empty

Discussion started by: lasse

4. UNIX for Dummies Questions & Answers

What's wrong with this line: if ${TEST:?} ; then echo empty; fi

Discussion started by: meili100