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Shell Programming and Scripting
sed with multiple regexp
Post 302605569 by Chubler_XL on Wednesday 7th of March 2012 07:17:22 PM
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I am using GnuWin32 sed and am having trouble with the regexp - i.e., they don't behave the same way as in UNIX (POSIX and and all that). I have a stream of data, e.g.:
11111'222?'22'33?'333'44444'55555'
I want to insert a \n after those apostrophes that are *not* preceded by a ?.
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please help:
I want to add 1 space between string and numbers:
input file:
abcd12345
output file:
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The following sed command does not work:
sed 's/\(+\)\(+\)/\1 \2/' file
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Hi,
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When I ran the below command:
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Dear all
i have the code which print 1 line of context before and after regexp, with line number
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Hi!
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G'day,
Here's a teaser for a sed guru, which I surely am not one, as even my
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LEARN ABOUT MINIX
fstab
FSTAB(5) File Formats Manual FSTAB(5) NAME
fstab, mtab - list of file systems to mount, mounted file system table. SYNOPSIS
/etc/fstab /etc/mtab DESCRIPTION
/etc/fstab is a table of file system to mount at boot time, /etc/mtab is a table of currently mounted file systems as maintained by mount and umount. /etc/fstab is not read by mount as it should be. It is instead a simple shell script listing the three devices that Minix needs to oper- ate: The device names of the root file system, the temporary (scratch) file system, and the file system for /usr. Of these only the /usr file system is mounted in /etc/rc, the scratch file system is there for the system administrator to test new kernels, or as a temporary file system. /etc/mtab contains lines of four fields. The layout is: device directory type options These fields may be explained as follows: device A block special device. directory Mount point. type Either 1, or 2, indicating a V1 or V2 file system. options Either ro, or rw, indicating a read-only or read-write mounted file system. FILES
/etc/fstab Shell script naming three important file systems. /etc/mtab List of mounted file systems. SEE ALSO
printroot(8), mount(1), fsck(1), mkfs(1). BUGS
/etc/fstab is a joke. AUTHOR
Kees J. Bot (kjb@cs.vu.nl) FSTAB(5)