Understanding ampersand (&) usage in the command Post: 302422338

10 More Discussions You Might Find Interesting

1. HP-UX

how can I find cpu usage memory usage swap usage and logical volume usage

how can I find cpu usage memory usage swap usage and I want to know CPU usage above X% and contiue Y times and memory usage above X % and contiue Y times my final destination is monitor process logical volume usage above X % and number of Logical voluage above can I not to...

2. UNIX for Dummies Questions & Answers

Understanding 2>&1

Hi, I have this line in a script: if mt -f /dev/nst0 rewind > /tmp/status_nst0.log 2>&1 ; then What does the 2>&1 mean? I think the line is saying that after rewinding the device if the log file does not exist then execute the code but I do not understand the contribution of the 2>&1....

3. UNIX for Advanced & Expert Users

How to find out memory & cpu usage of a process

Hi, By using time command we can determine the execution time of a process or command. bash-2.04$ time ls -l total 0 -rw-r--r-- 1 admin tac 0 Oct 6 04:46 file1 -rw-r--r-- 1 admin tac 0 Oct 6 04:46 file2 real 0m0.002s user 0m0.000s sys 0m0.001s...

4. UNIX for Dummies Questions & Answers

usage of 2>&1 while appending

Hi, 17 11 * * * /xx/yy/name.sh >> /tmp/cron.log 2>&1 The above statement is one of the crontab entries. The crong log is getting appended everytime. Can anyone tell me the usage of "2>&1"? Thanks.

5. UNIX for Dummies Questions & Answers

Command to display the space usage (memory usage) of a specific directory.

Hi all, Can you please tell me the command, with which one can know the amount of space a specific directory has used. df -k . ---> Displays, the amount of space allocated, and used for a directory. du -k <dir name> - gives me the memory used of all the files inside <dir> But i...

6. UNIX for Dummies Questions & Answers

Ampersand usage and Emacs

In the terminal, using the ampersand allows the process to run in the background--Emacs, for example. But is there a way to automatically open Emacs as a background process so I can still use the command line? Typing the ampersand is just annoying to me, and I keep forgetting; it's just too useful...

7. Shell Programming and Scripting

help understanding regex with grep & sed

I have the following line of code that works wonders. I just don't completely understand it as I am just starting to learn regex. Can you help me understand exactly what is happening here? find . -type f | grep -v '^\.$' | sed 's!\.\/!!'

8. Solaris

Understanding & Monitoring CPU performance (Load vs SAR)

Hi all, Been reading a lot of the cpu load and its "analogy of it to car traffic path of expressway" From wiki Most UNIX systems count only processes in the running (on CPU) or runnable (waiting for CPU) states. However, Linux also includes processes in uninterruptible sleep states...

9. Shell Programming and Scripting

Problems with ampersand (&) in sed command

Hello everybody, I have a Problem with sed command. I want to replace a defined string with a string from a database field (dynamic). e.g. sed -i -e 's/%NAME%/'"$HNAME"'/g' The Problem is that the $HNAME variable can contain Special characters like '&' e.g. HNAME="AH Kruger & Co. KG" ...

10. Red Hat

Nohup with ampersand & process gets disconnected

For years I have spawned shell scripts with nohup and ampersand and they run whether or not I stay logged in. Recently a client told us that we had to set a keep alive timeout on all of our Redhat 7.6 Linux servers. Our sysadmin set the following parameters in the sshd_config file on all of our...

LEARN ABOUT MOJAVE

set_color

set_color(1)							       fish							      set_color(1)

NAME

       set_color - set_color - set the terminal color

set_color - set the terminal color
   Synopsis
       set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]

   Description
       Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
       cyan, white and normal.

       o -b, --background Set the background color

       o -c, --print-colors Prints a list of all valid color names

       o -h, --help Display help message and exit

       o -o, --bold Set bold or extra bright mode

       o -u, --underline Set underlined mode

       o -v, --version Display version and exit

       Calling set_color normal will set the terminal color to whatever is the default color of the terminal.

       Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
       font color, while set_color --bold white will result in a white font color.

       Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.

       set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
       incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
       ncurses and recompile fish against it in order to fix this issue.

Version 1.23.1							  Sun Jan 8 2012						      set_color(1)

10 More Discussions You Might Find Interesting

1. HP-UX

how can I find cpu usage memory usage swap usage and logical volume usage

Discussion started by: alert0919

2. UNIX for Dummies Questions & Answers

Understanding 2>&1

Discussion started by: mojoman

3. UNIX for Advanced & Expert Users

How to find out memory & cpu usage of a process

Discussion started by: learn more

4. UNIX for Dummies Questions & Answers

usage of 2>&1 while appending

Discussion started by: venkatesht