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Top Forums Shell Programming and Scripting Find and replace a word in all the files (that contain the word) under a directory Post 302561682 by alister on Wednesday 5th of October 2011 12:22:13 AM
Old 10-05-2011
No backups. No reading the same file twice. No remorse. Just ed. Smilie

Code:
for f in *.sh; do
    ed -s "$f" <<-'EOED'
        1,$s/xsgd1234dap/xsdr3423pap/g
        w
        q
    EOED
done

Note: The heredoc indentation must consist of tabs (not spaces).


Alternatively:
Code:
for f in *.sh; do
    printf %s\\n '1,$s/xsgd1234dap/xsdr3423pap/g' w q | ed -s "$f"
done


Regards,
Alister
 

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LN(1)									FSF								     LN(1)

NAME
ln - make links between files SYNOPSIS
ln [OPTION]... TARGET [LINK_NAME] ln [OPTION]... TARGET... DIRECTORY ln [OPTION]... --target-directory=DIRECTORY TARGET... DESCRIPTION
Create a link to the specified TARGET with optional LINK_NAME. If LINK_NAME is omitted, a link with the same basename as the TARGET is created in the current directory. When using the second form with more than one TARGET, the last argument must be a directory; create links in DIRECTORY to each TARGET. Create hard links by default, symbolic links with --symbolic. When creating hard links, each TARGET must exist. Mandatory arguments to long options are mandatory for short options too. --backup[=CONTROL] make a backup of each existing destination file -b like --backup but does not accept an argument -d, -F, --directory hard link directories (super-user only) -f, --force remove existing destination files -n, --no-dereference treat destination that is a symlink to a directory as if it were a normal file -i, --interactive prompt whether to remove destinations -s, --symbolic make symbolic links instead of hard links -S, --suffix=SUFFIX override the usual backup suffix --target-directory=DIRECTORY specify the DIRECTORY in which to create the links -v, --verbose print name of each file before linking --help display this help and exit --version output version information and exit The backup suffix is `~', unless set with --suffix or SIMPLE_BACKUP_SUFFIX. The version control method may be selected via the --backup option or through the VERSION_CONTROL environment variable. Here are the values: none, off never make backups (even if --backup is given) numbered, t make numbered backups existing, nil numbered if numbered backups exist, simple otherwise simple, never always make simple backups AUTHOR
Written by Mike Parker and David MacKenzie. REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>. COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. SEE ALSO
The full documentation for ln is maintained as a Texinfo manual. If the info and ln programs are properly installed at your site, the com- mand info ln should give you access to the complete manual. ln (coreutils) 4.5.3 February 2003 LN(1)
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