assinging the printf result to varaibles

I am some new to the programming world but starting to get hang of it.

My question is,what shell should I use bash or sh (Ubuntu uses dash for sh) Is the one faster, users more memory etc?

Example scripts

Code: #1 for I in {1..10}; do echo $I; done

#2 for I in 1 2 3 4 5 6 7 8 9 10; do echo $I; done

#3 for I in $(seq 1 10); do echo $I; done

#4 for ((I=1; I <= 10 ; I++)

I need to check whether first character of variable is single quote. I tried the below constructions but they are all not working (always return true)

Code: if (test `echo "$REGEXP" |cut -c1` != "'"); then echo "TRUE"; fi if (test `echo "$REGEXP" |cut -c1` != '\''); then echo "TRUE"; fi if (test `echo "$REGEXP" |cut -c1` != `printf &

hello,

I'm trying to display Unix variable using printf command.

Code:

Code:

awk '{ if ( $0 ~ /string/ ) { printf( "%s\n%s\n",$0,"dsd"); #this one works printf( "%s\n%s\n",$0,$HOME); #this does not work } else { print $0; } }' param1_1.txt I could use here echo command but I'm not sure how to use it properly.

I mean "properly" because the in

Hi guys...was trying to use while loop and a sentry to prompt user input again if an invalid option was entered...but somehow I got a "while" unmatched error...The code is as below:

Code: #!/system/bin/sh

finsh=0 while [ $finish -ne 0 ] do echo "Please select an option: " echo "1. One" echo "2. Two" echo "3. Three" echo "4.

Hi ,

I have script as follows ,

#!/usr/bin/ksh -x

if [ `uname` = "Linux" ] then alias echo="echo -e" fi MAX_ENTRIES=1024

nb_of_entries=`echo "$list_of_entries" | wc -w` # Set number of tables eval nb_of_tables=\`expr `expr $nb_of_entries / $MAX_ENTRIES` + 1 \` # Output the number of tables echo $nb_of_tables

Here "list of entries" is list of PID's and

Heh, working on a bash script to chop up a file based on its filesize.

How can the white space character be escaped in printf for the purpose of this script that currently runs in a Cygwin client?

Hi, I am in a situation to print the message on a column, where the each line starting position should be same.

For example code:

Code: HOSTNAME1="1.2.3.4.5.6.7" TARGET_DIR="/tmp" echo "HOSTNAME1:"  "$HOSTNAME1" | awk -v var="Everyone" '{len=55-length;printf("%s%*s\n",$0,len,var)}' echo "TARGET_DIR:"  "$

I want to used sed or some other linux command to convert special characters in XML files.

Here is an example: -bash-3.2$ echo "P&G" P&G

Now I want to change the "&" to "&amp;" so I run: -bash-3.2$ echo "P&G" | sed -e "s/&/&amp;/ig" P&amp;G

I got the result I want, but if someone runs the conversion program again,