Sponsored Content
Top Forums Shell Programming and Scripting need to grep contents of a file within specific time span. regex i am using is not working Post 302648627 by elixir_sinari on Wednesday 30th of May 2012 07:26:29 AM
Old 05-30-2012
Quote:
Originally Posted by black_fender
The {} must be "escaped" with \ in this context
I don't think there is any need to escape the braces. The regex will work with the -E option without escaping.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Reading specific contents from a file and appending it to another file

Hi, I need to write a shell script (ksh) to read contents starting at a specific location from one file and append the contents at specific location in another file. Please find below the contents of the source file that I need to read the contents from, File 1 -----# more... (5 Replies)
Discussion started by: dnicky
5 Replies

2. Shell Programming and Scripting

awk - print file contents except regex

Hello, I have a file which has user information. Each user has 2 variables with the same name like Email: testuser1 Email: testuser1@test.com Email: testuser2 Email: testuser2@test.com My intention is to delete the ones without the '@' symbol. When I run this statement awk '/^Email:/&&!/@/'... (6 Replies)
Discussion started by: rmsagar
6 Replies

3. Shell Programming and Scripting

Bash copy file contents into an existing file at a specific location

Hi all I need to copy the entire contents of one file into an existing file at a specific location. I know the exact line number where I need to put it. It appears I would use either sed or awk to do this, but I have been unsuccessful so far: File A line 1 line 2 line 3 line 4 ... (6 Replies)
Discussion started by: gshepherd7
6 Replies

4. UNIX for Dummies Questions & Answers

Extracting a Time Span from Syslog Messages File

Hi all, I need your help to explain how I can extract a time span from the syslog messages file on a Solaris 10 system. Here is an example extract of the syslog messages: Dec 4 11:51:38 hajap141-0107.nls.jlrint.com 267938: Dec 4 11:51:36: %DOT11-6-DISASSOC: Interface Dot11Radio0,... (4 Replies)
Discussion started by: wthomas
4 Replies

5. Shell Programming and Scripting

How to replace specific contents in a file?

From the existing file, I need to replace specific contents possibly with var every time when the user changes the var. e.g the contents in the file file.txt is 'My name is $n and I am $y years old' and every time user changed the var outside the file, the contents of the file should be created... (4 Replies)
Discussion started by: Emilywu
4 Replies

6. Shell Programming and Scripting

select the lines in between some time span

Hi Everyone ! i want to take all the lines from a file that falls in between some date... and every line in a file has a time stamp.. ---some text---- 01/Jan/2010 ---- some other text ---- ---some text---- 10/Jan/2010 ---- some other text ---- ---some text---- 20/Dec/2010 ---- some... (3 Replies)
Discussion started by: me_newbie
3 Replies

7. UNIX for Dummies Questions & Answers

Looping/Reading file contents not working

Hi, I am doing something basic, but I am missing something. Im trying to read the contents of a file and taking those values and connecting to a database. However, it only connect to one (or reads in) value and then exists. Here is what it looks like: listname.txt db1 db2 db3 Script:... (15 Replies)
Discussion started by: DBnixUser
15 Replies

8. Shell Programming and Scripting

awk to place specific contents filename within text file

I am trying to use awk to place the contens of a filename in $1 and $2 followed by the data in the text file. Basically, put the filename within the text file. There are over 1000 files in the directory and as of now each file is saved with a unique name but it is not within the file. Thank you... (10 Replies)
Discussion started by: cmccabe
10 Replies

9. UNIX for Beginners Questions & Answers

Total size utilizes by the files older than a time span

Through find command I identified the files older that 1 year. I need the overall size utilizes by these 1 year older files. Please share me the command to identify it .Thanks Please post in an adequate technical forum! (3 Replies)
Discussion started by: Sang
3 Replies

10. Shell Programming and Scripting

Grep a log file starting from a specific time to the end of file

I have a log file which have a date and time at the start of every line. I need to search the log file starting from a specific time to the end of file. For example: Starting point: July 29 2018 21:00:00 End point : end of file My concern is what if the pattern of `July 29 2018 21:00:00`... (3 Replies)
Discussion started by: erin00
3 Replies
SYSTEMD-ESCAPE(1)						  systemd-escape						 SYSTEMD-ESCAPE(1)

NAME
systemd-escape - Escape strings for usage in systemd unit names SYNOPSIS
systemd-escape [OPTIONS...] [STRING...] DESCRIPTION
systemd-escape may be used to escape strings for inclusion in systemd unit names. The command may be used to escape and to undo escaping of strings. The command takes any number of strings on the command line, and will process them individually, one after another. It will output them separated by spaces to stdout. By default, this command will escape the strings passed, unless --unescape is passed which results in the inverse operation being applied. If --mangle is given, a special mode of escaping is applied instead, which assumes the string is already escaped but will escape everything that appears obviously non-escaped. For details on the escaping and unescaping algorithms see the relevant section in systemd.unit(5). OPTIONS
The following options are understood: --suffix= Appends the specified unit type suffix to the escaped string. Takes one of the unit types supported by systemd, such as "service" or "mount". May not be used in conjunction with --template=, --unescape or --mangle. --template= Inserts the escaped strings in a unit name template. Takes a unit name template such as foobar@.service. May not be used in conjunction with --suffix=, --unescape or --mangle. --path, -p When escaping or unescaping a string, assume it refers to a file system path. This eliminates leading, trailing or duplicate "/" characters and rejects "." and ".." path components. This is particularly useful for generating strings suitable for unescaping with the "%f" specifier in unit files, see systemd.unit(5). --unescape Instead of escaping the specified strings, undo the escaping, reversing the operation. May not be used in conjunction with --suffix=, --template= or --mangle. --mangle Like --escape, but only escape characters that are obviously not escaped yet, and possibly automatically append an appropriate unit type suffix to the string. May not be used in conjunction with --suffix=, --template= or --unescape. -h, --help Print a short help text and exit. --version Print a short version string and exit. EXAMPLES
To escape a single string: $ systemd-escape 'Hallochen, Meister' Hallxc3xb6chenx2cx20Meister To undo escaping on a single string: $ systemd-escape -u 'Hallxc3xb6chenx2cx20Meister' Hallochen, Meister To generate the mount unit for a path: $ systemd-escape -p --suffix=mount "/tmp//waldi/foobar/" tmp-waldi-foobar.mount To generate instance names of three strings: $ systemd-escape --template=systemd-nspawn@.service 'My Container 1' 'containerb' 'container/III' systemd-nspawn@Myx20Containerx201.service systemd-nspawn@containerb.service systemd-nspawn@container-III.service EXIT STATUS
On success, 0 is returned, a non-zero failure code otherwise. SEE ALSO
systemd(1), systemd.unit(5), systemctl(1) systemd 237 SYSTEMD-ESCAPE(1)
All times are GMT -4. The time now is 03:35 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy