How do I grep the latest file in Unix?

How do I grep the latest file?

How it works:

  1. find /var/log/folder -type f -printf ‘%T@ %p’ This looks for files and prints their modification time (seconds) followed by a space and their name followed by a nul character.
  2. sort -rz. This sorts the null-separated data.
  3. sed -Ezn ‘1s/[^ ]* //p’ …
  4. xargs –null grep string.

How do I find the latest file in Unix?

Get most recent file in a directory on Linux

  1. watch -n1 ‘ls -Art | tail -n 1’ – shows the very last files – user285594 Jul 5 ’12 at 19:52.
  2. Most answers here parse the output of ls or use find without -print0 which is problematic for handling annoying file-names.

How do I find recent files in Linux?

Using the ls command, you can only list today’s files in your home folder as follows, where:

  1. -a – list all files including hidden files.
  2. -l – enables long listing format.
  3. –time-style=FORMAT – shows time in the specified FORMAT.
  4. +%D – show/use date in %m/%d/%y format.

How do I find the latest files in a directory?

find . –type f -exec stat –c ‘%Y %n’ * : prints the last modification’s time followed by the file’s path for each file in the current directory hierarchy; sort -nr : sorts in an inverse numerical order; awk ‘NR==1,NR==3 {print $2}’ : prints the second field of the first, second and third line.

How do I find the last 10 files in UNIX?

It is the complementary of head command. The tail command, as the name implies, print the last N number of data of the given input. By default it prints the last 10 lines of the specified files. If more than one file name is provided then data from each file is precedes by its file name.

How do I use find in Linux?

The find command is used to search and locate the list of files and directories based on conditions you specify for files that match the arguments. find command can be used in a variety of conditions like you can find files by permissions, users, groups, file types, date, size, and other possible criteria.

How do I copy the latest file in Unix?

Running ls -t /path/to/source | head -1 will return the newest file in the directory /path/to/source so cp “$(ls -t /path/to/source | head -1)” /path/to/target will copy the newest file from source to target . The quotes around the expression are needed in order to deal with file names that contain spaces.

How do I grep a timestamp?

I suggest you do:

  1. Press CTRL + ALT + T .
  2. Run the command ( -E for extended regex): sudo grep -E ‘2019-03-19T09:3[6-9]’ <file or file_path>

What is Newermt in Unix?

newermt ‘2016-01-19’ will give you all files which are newer than specified date and ! will exclude all files which are newer than the specified date. So the above command will give a list of files which were modified on 2016-01-18.

How do I list yesterday files in UNIX?

You can use the find command to find all files that have been modified after a certain number of days. Note that to find files modified before 24 hours ago, you have to use -mtime +1 instead of -mtime -1 . This will find all files modified after a specific date.

How do I grep a file in Linux?

How to use the grep command in Linux

  1. Grep Command Syntax: grep [options] PATTERN [FILE…] …
  2. Examples of using ‘grep’
  3. grep foo /file/name. …
  4. grep -i “foo” /file/name. …
  5. grep ‘error 123’ /file/name. …
  6. grep -r “192.168.1.5” /etc/ …
  7. grep -w “foo” /file/name. …
  8. egrep -w ‘word1|word2’ /file/name.

How do I list files in Linux?

See the following examples:

  1. To list all files in the current directory, type the following: ls -a This lists all files, including. dot (.) …
  2. To display detailed information, type the following: ls -l chap1 .profile. …
  3. To display detailed information about a directory, type the following: ls -d -l .

How do I find the oldest files in UNIX?

The %p indicts the file name. The sort command sorted input and passed it to head to display the oldest file on my GNU/Linux system. The sort command sorted input and passed it to head to display the oldest file on my GNU/Linux system.

Which command enables you to show all files in the current directory so that the newest files are listed last?

Explanation : The option -a shows hidden files, -l gives a long listing, -t sorts on modification time which by default shows newest files first, and -r reverts the sorting so that newest files are shown last.

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