Hi ,
I have a list of files in a directory and filename format is as follows:
PQ223390
PQ876912
PQ768901
PQ398140 and so on
I want to grep the first four digits of all the files after PQ, into a file.
Ex:
2233
8769
6890
3981 and so on
Can anyone tell me the command?
thankx jazz (11 Replies)
Hi, I am currently building a PHP/MySQL database that handles our offices newsletters. Now everything works great in the alpha with only a few names in the list, but I anticipate that once we fill it up (around 10,000) that this will not work from the PHP. I already have the script echo the... (0 Replies)
I have a directory of files and each file has a random 5 digit string at the beginning that needs to be removed. Plus, there are some files that will be identically named after the 5 digit string is removed and I want those eliminated or moved.
any ideas? (17 Replies)
Hi,
I need to Change passwd for bulk servers using SSH script.
I have one server, from which i can reach all the servers without password via SSH.
There is some expect script, from which i can achieve it.
Can any one help me out here.
Thanks in advance.
Vicky (1 Reply)
Hi I have abc_ahb_one.v
abc_ahb_two.v
abc_ahb_three.v
........l
like this
-----upto
abc_ahb_ninety.v in some directory.
I need to change those file names to like below.
... (5 Replies)
Hi, all:
I'd love to use shell script to change all filenames under different folders once for all:
I've got over 100 folders, in each of them, there is a file named "a.ppm". I wanna change all these "a.ppm" to "b.ppm", and still . Visually, the directory structure looks like:
and hope... (1 Reply)
I have a filename with a bunch of periods that I want to replace with underscores, but I don't want to change the extension.
Ex: I want
file.test1.f-1.fig.eps
to be
file_test1_f-1_fig.eps
Using awk, the following line will replace ALL periods with underscores, but I want to leave the... (2 Replies)
Hi,
I have little experience on Shell scripts, I searched the forum but couldn't make out what I want.
I want to rename a set of files to a new file name
a_b_20100101
c_d_20100101
.......................
......................
I want to rename the files to
a_b_20140101... (5 Replies)
Hello,
I made a mistake in a script and now need to go back and change allot of filenames. I need to change "v4" in filenames to "v3". I was thinking of something like this.
#!/bin/bash
FILELIST=$(ls -f -R *)
for FILE in $FILELIST
do
# create new filename
... (5 Replies)
Hi All,
I am having Solaris 5.10 acting as NIS.
How do i change multiple user password in NIS in a batch.
I have predefined users with their passwords to be set:
Example:
user1 password1
user2 password2
Pls advise. (0 Replies)
Discussion started by: yogajwa
0 Replies
LEARN ABOUT LINUX
ppmtosixel
ppmtosixel(1) General Commands Manual ppmtosixel(1)NAME
ppmtosixel - convert a portable pixmap into DEC sixel format
SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC
LJ250 color inkjet printer.
If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table
begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file.
OPTIONS -raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com-
pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni-
tude larger than a compressed file and prints much slower.
-margin
If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci-
fied, a 1.5 inch left margin will offset the image.
PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?.
BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was
greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the
color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation.
SEE ALSO ppm(5)AUTHOR
Copyright (C) 1991 by Rick Vinci.
26 April 1991 ppmtosixel(1)