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Full Discussion: Replacing text in between the string
Top Forums Shell Programming and Scripting Replacing text in between the string Post 302829797 by Don Cragun on Saturday 6th of July 2013 01:21:38 AM
Old 07-06-2013
Quote:
Originally Posted by 2by4
$ which sed; uname -a
/bin/sed
Linux ubuntu 3.5.0-34-generic #55~precise1-Ubuntu SMP Fri Jun 7 16:25:50 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

sed --version
GNU sed version 4.2.1

---------- Post updated at 10:05 PM ---------- Previous update was at 10:02 PM ----------

Don, if I read correct your script assumes < is at the beginning of the line:

Code:
sed '/^<

which works on the sample text, however in my case, I have a ton of text before and after image tags.
Yes. Every single sample line you showed us (including the ones that you said did not work with my script) had <IMG or <img at the start of every line you wanted to change.

You can try changing the '^<... to '<..., but if you have complete lines longer than LINE_MAX bytes, then none of the UNIX text processing utilities are defined to work. The script I gave you will also modify any occurrence of src=".../ that it finds on matching lines; so if that occurs in tags other than <IMG.*> and <img.*>, it may make changes you don't want.

If you would actually give a full description of what your input looks like (instead of the unrepresentative samples you have shown us so far), we might be able to help you come up with a script that will work.
 

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LEARN ABOUT CENTOS

grub-file

GRUB-FILE(1)                                                       User Commands                                                      GRUB-FILE(1)

NAME

       grub-file - check file type

SYNOPSIS

       file OPTIONS FILE

DESCRIPTION

       Check if FILE is of specified type.

       --is-i386-xen-pae-domu
              Check if FILE can be booted as i386 PAE Xen unprivileged guest kernel

       --is-x86_64-xen-domu
              Check if FILE can be booted as x86_64 Xen unprivileged guest kernel

       --is-x86-xen-dom0
              Check if FILE can be used as Xen x86 privileged guest kernel

       --is-x86-multiboot
              Check if FILE can be used as x86 multiboot kernel

       --is-x86-multiboot2 Check if FILE can be used as x86 multiboot2 kernel

       --is-arm-linux
              Check if FILE is ARM Linux

       --is-arm64-linux
              Check if FILE is ARM64 Linux

       --is-ia64-linux
              Check if FILE is IA64 Linux

       --is-mips-linux
              Check if FILE is MIPS Linux

       --is-mipsel-linux
              Check if FILE is MIPSEL Linux

       --is-sparc64-linux
              Check if FILE is SPARC64 Linux

       --is-powerpc-linux
              Check if FILE is POWERPC Linux

       --is-x86-linux
              Check if FILE is x86 Linux

       --is-x86-linux32
              Check if FILE is x86 Linux supporting 32-bit protocol

       --is-x86-kfreebsd
              Check if FILE is x86 kFreeBSD

       --is-i386-kfreebsd
              Check if FILE is i386 kFreeBSD

       --is-x86_64-kfreebsd
              Check if FILE is x86_64 kFreeBSD

       --is-x86-knetbsd
              Check if FILE is x86 kNetBSD

       --is-i386-knetbsd
              Check if FILE is i386 kNetBSD

       --is-x86_64-knetbsd Check if FILE is x86_64 kNetBSD

       --is-i386-efi
              Check if FILE is i386 EFI file

       --is-x86_64-efi
              Check if FILE is x86_64 EFI file

       --is-ia64-efi
              Check if FILE is IA64 EFI file

       --is-arm64-efi
              Check if FILE is ARM64 EFI file

       --is-arm-efi
              Check if FILE is ARM EFI file

       --is-hibernated-hiberfil
              Check if FILE is hiberfil.sys in hibernated state

       --is-x86_64-xnu
              Check if FILE is x86_64 XNU (Mac OS X kernel)

       --is-i386-xnu
              Check if FILE is i386 XNU (Mac OS X kernel)

       --is-xnu-hibr
              Check if FILE is XNU (Mac OS X kernel) hibernated image

       --is-x86-bios-bootsector
              Check if FILE is BIOS bootsector

       -h, --help              Display this help and exit.  -u, --usage             Display the usage of this command and exit.

SEE ALSO

       The  full documentation for grub-file is maintained as a Texinfo manual.  If the info and grub-file programs are properly installed at your
       site, the command

              info grub-file

       should give you access to the complete manual.

grub-file (GRUB) 2.02-2ubuntu8.3                                     July 2018                                                        GRUB-FILE(1)
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