Disabling Backslash Interpretation with "echo -E"? Post: 302689447

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Interpretation of "echo $-"

I am running Solaris 10. Can someone help me interpret the output from "echo $-"? Interactively, the output is: ism From within a cron job, the output is: xh Why are they different? Can someone point me to the appropriate documentation? Thanks, J

2. Shell Programming and Scripting

"sed" to check file size & echo " " to destination file

Hi, I've modified the syslogd source to include a thread that will keep track of a timer(or a timer thread). My intention is to check the file size of /var/log/messages in every one minute & if the size is more than 128KB, do a echo " " > /var/log/messages, so that the file size will be set...

3. Shell Programming and Scripting

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

So in my shell i execute: { while true; do echo string; sleep 1; done } | read line This waits one second and returns. But { while true; do /bin/echo string; sleep 1; done } | read line continues to run, and doesn't stop until i kill it explicitly. I have tried this in bash as well as zsh,...

4. Shell Programming and Scripting

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

5. Shell Programming and Scripting

awk command to replace ";" with "|" and ""|" at diferent places in line of file

Hi, I have line in input file as below: 3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL My expected output for line in the file must be : "1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL" Can someone...

6. AIX

echo $varibla | mail -s "subject" "xxx@xxx.com" not ruuning as expected

Hi Folks, As per the subject, the following command is not working as expected. echo $variable | mail -s "subject" "xxx@xxx.com" Could anyone figure it out whats wrong with this. I am using AIX box. Regards,

7. Shell Programming and Scripting

tcsh - understanding difference between "echo string" and "echo string > /dev/stdout"

I came across and unexpected behavior with redirections in tcsh. I know, csh is not best for redirections, but I'd like to understand what is happening here. I have following script (called out_to_streams.csh): #!/bin/tcsh -f echo Redirected to STDOUT > /dev/stdout echo Redirected to...

8. Shell Programming and Scripting

sed command escaping backslash "/"

Hello friends/'unix experts', i have a file as below cat sample.txt satish /rakesh/ sandhya /sandeep/ i have to replace /rakesh/ with rakesh, how can i do it with sed, i tried below code but its throwing errors sed -e 's/'"\(/rakesh/)\"'/\1rakesh/g' sample.txt ...

9. Shell Programming and Scripting

Escaping backslash and asterisk in egrep to match "\*"

So far what i've got is egrep '^(\\)\*$'No luck. I've searched the web and not much luck. I know about the escape character \ but its confusing to figure out how to use it to match a backslash and use it to escape the asterisk also. Any ides? Thanks!

10. Shell Programming and Scripting

Bash script - Print an ascii file using specific font "Latin Modern Mono 12" "regular" "9"

Hello. System : opensuse leap 42.3 I have a bash script that build a text file. I would like the last command doing : print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt where : print_cmd ::= some printing...

LEARN ABOUT DEBIAN

pnmcrop

pnmcrop(1)						      General Commands Manual							pnmcrop(1)

NAME

       pnmcrop - crop a portable anymap

SYNOPSIS

       pnmcrop [-white|-black|-sides] [-left] [-right] [-top] [-bottom] [pnmfile]

       All options may be abbreviated to their shortest unique prefix or specified with double hyphens.

DESCRIPTION

       Reads a PBM, PGM, or PPM image as input.  Removes borders that are the background color, and produces the same type of image as output.

       If  you don't specify otherwise, pnmcrop assumes the background color is whatever color the top left and right corners of the image are and
       if they are different colors, something midway between them.  You can specify that the background is white or black  with  the  -white  and
       -black options or make pnmcrop base its guess on all four corners instead of just two with -sides.

       By  default,  pnmcrop  chops  off any stripe of background color it finds, on all four sides.  You can tell pnmcrop to remove only specific
       borders with the -left, -right, -top, and -bottom options.

       If you want to chop a specific amount off the side of an image, use pnmcut.

       If you want to add different borders after removing the existing ones, use pnmcat or pnmcomp.

OPTIONS

       -white Take white to be the background color.  pnmcrop removes borders which are white.

       -black Take black to be the background color.  pnmcrop removes borders which are black.

       -sides Determine the background color from the colors of the four corners of the input image.  pnmcrop removes borders  which  are  of  the
	      background color.

	      If at least three of the four corners are the same color, pnmcrop takes that as the background color.  If not, pnmcrop looks for two
	      corners of the same color in the following order, taking the first found as the background color: top, left, right, bottom.  If  all
	      four corners are different colors, pnmcrop assumes an average of the four colors as the background color.

	      The  -sides option slows pnmcrop down, as it reads the entire image to determine the background color in addition to the up to three
	      times that it would read it without -sides.

       -left  Remove any left border.

       -right Remove any right border.

       -top   Remove any top border.

       -bottom
	      Remove any bottom border.

       -verbose
	      Print on Standard Error information about the processing, including exactly how much is being cropped off of which sides.

SEE ALSO

       pnmcut(1), pnmfile(1), pnm(5)

AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.

								   18 March 2001							pnmcrop(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Interpretation of "echo $-"

Discussion started by: shew01

2. Shell Programming and Scripting

"sed" to check file size & echo " " to destination file

Discussion started by: jockey007

3. Shell Programming and Scripting

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

Discussion started by: ulidtko

4. Shell Programming and Scripting

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

Discussion started by: hakermania