tr command!

c_d · #1 (**permalink**) 03-07-2009

suppose i have a file like

Code:

//file.c

main()
{
printf("pritf");
printf("nirpt");
printf("%p%r%i%n%t%f");
}

suppose i would like to convert all the instances of "printf" to "PRINTF", the command i issued was

Code:

$ cat file.c | tr 'printf' 'PRINTF'

this is the output i got

Code:

//FIle.c

maIN()
{
PRINTF("PRITF");
PRINTF("NIRPT");
PRINTF("%P%R%I%N%T%F");
}

but that was not the output i wanted. this is the output i wanted

Code:

//file.c

main()
{
PRINTF("pritf");
PRINTF("nirpt");
PRINTF("%p%r%i%n%t%f");
}

because, neither "FIle.c" is printf, and yet it got effected by tr and neither "maIN()" is "printf" , yet it too was effected...

how do i make tr identify the entire string and then make it replace it with the desired string, instead of letting each instance of a character in the string replaced?

c_d · #2 (**permalink**) 03-07-2009

[SOLVED]

used sed -i s/printf/PRINTF/g filename instead...

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
problem with output of find command being input to basename command...	new_learner	UNIX for Dummies Questions & Answers	2	12-14-2008 02:56 AM
awk/sed Command : Parse parameter file / send the lines to the ksh export command	rajan_san	Shell Programming and Scripting	4	11-06-2008 01:29 PM
assign a command line argument and a unix command to awk variables	sweta_doshi	Shell Programming and Scripting	0	08-08-2008 06:54 AM
Help Required: Command to find IP address and command executed of a user	loggedout	Security	2	08-06-2008 08:12 PM
inconsistent ls command display at the command prompt & running as a cron job	rajranibl	SuSE	5	07-30-2007 08:26 AM

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread: