All commands (14,187)
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-4tar -C <source_dir> -cf . | tar -C <dest_dir> -xf
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-4:!>test.txt
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It will return the absolute location of the called a script. If is in $PATH, it will search it using which. You can combine this function with this other one: http://www.commandlinefu.com/commands/view/9252/readlink-equivalent-using-shell-commands-and-following-all-links, to get a way to know where is the real location of a called script:
# Returns the realpath of a called command.whereis_realpath() { local SCRIPT_PATH=$(whereis $1); myreadlink ${SCRIPT_PATH} | sed "s|^\([^/].*\)\$|$(dirname ${SCRIPT_PATH})/\1|"; }Show Sample Output-4get_absolute_path() { echo $1 | sed "s|^\([^/].*/.*\)|$(pwd)/\1|;s|^\([^/]*\)$|$(which -- $1)|;s|^$|$1|"; } -
-4ip a
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-4perl -e 'print crypt("PASSWORD",int(rand(128))).$/;'
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This command might not be useful for most of us, I just wanted to share it to show power of command line. Download simple text version of novel David Copperfield from Poject Gutenberg and then generate a single column of words after which occurences of each word is counted by sort | uniq -c combination. This command removes numbers and single characters from count. I'm sure you can write a shorter version. Show Sample Output
-4wget -q -O- http://www.gutenberg.org/dirs/etext96/cprfd10.txt | sed '1,419d' | tr "\n" " " | tr " " "\n" | perl -lpe 's/\W//g;$_=lc($_)' | grep "^[a-z]" | awk 'length > 1' | sort | uniq -c | awk '{print $2"\t"$1}' -
It extracts X number of lines from file1 and dumps them to file2.Using grep with the empty string '' extracts the complete lines (i.e. no filtering takes place) and the -m flag indicates how many lines to extract out from the given file. Then using the redirect > operator we send the extracted lines to a new file.
-4grep '' -m X file1 > file2 -
See smbstatus Output within a 5 second interval (for monitoring smb access)
-4while (( $i != 0 )) { smbstatus; sleep 5; clear } -
After a command is run in bash, !$ is set to the last (space-delimited) argument of the command. Great for running several commands against the same file in a row.
-4svn status app/models/foo.rb; svn commit -m "Changed file" !$ -
-4sh default values
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# define user pid to kill PID=httpd ; # kill all pids ps aux | grep $PID | grep -v grep | awk '{print $2}' | xargs kill -9 Show Sample Output
-4PID=httpd ; ps aux | grep $PID | grep -v grep | awk '{print $2}' | xargs kill -9 -
I use these command to validate twitter accounts, we can use a "for a in $(cat list.txt)" to validate a complete list of twitter accounts.
-4if lynx --dump http://twitter.com/xmuda | grep -q "Sorry, that page does"; then echo "Dont Exist"; else echo "Exist"; fi -
The sample output, is the command with a ?, to show you all the stuff you can look at. Show Sample Output
-4dm ? -
-4Place a filename at the beginning of the line to make it easier to edit the search at the end of the command.
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-4alias w3m='w3m -cookie'
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This command marks it as "dirty" NTFS partition, forcing Windows to do the scandisk during boot. It is convenient if you work hard to NTFS partitions under Linux
-4ntfsfix /dev/hda1 -
changes the PS1 to something better than default. [username.hostname.last-2-digits-of-ip] (current directory) Show Sample Output
-4newhostname=$(hostname | awk -F. '{print $1 "." $2}'); ipaddress=$(nslookup `hostname` | grep -i address | awk -F" " '{print $2}' | awk -F. '{print $3 "." $4}' | grep -v 64.142);PS1="[`id -un`.$newhostname.$ipaddress]"' (${PWD}): '; export PS1 -
I have come across multiple situations where I could only get to a server from a very restrictive bounce point which would not allow file transfers. I was able to uuencode a file, copy the output to a text file over putty, and then uudecode the file to transfer it. This works with any kind of file. Show Sample Output
-4uuencode -m <filename> <filename> -
-4grep --exclude-dir=.svn --exclude=*~ -i "TODO" -rl .
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deletes first 55 lines; change the 55 to whatever number
-4sed '1,55d' -
On Linux and Mac systems (I have not tested with other Unix systems), the ping command will keep on pinging until the user interrupts it with Ctrl+C. On Windows system, ping will execute for a number of times then quit. The -c flag on Linux and Mac will make this happen
-4ping -c 10 hostname -
This is based on the Windows Version of VirtualBox. From the /? ... VBoxManage clonehd | [--format VDI|VMDK|VHD|RAW|] [--variant Standard,Fixed,Split2G,Stream,ESX] [--type normal|writethrough|immutable|shareable] [--remember] [--existing] From the online help.. http://www.virtualbox.org/manual/ch08.html#id2676537 VBoxManage clonehd This command duplicates a registered virtual hard disk image to a new image file with a new unique identifier (UUID). The new image can be transferred to another host system or imported into VirtualBox again using the Virtual Media Manager; see the section called ?The Virtual Media Manager? and the section called ?Cloning disk images?. The syntax is as follows: VBoxManage clonehd | [--format VDI|VMDK|VHD|RAW|] [--variant Standard,Fixed,Split2G,Stream,ESX] [--type normal|writethrough|immutable] [--remember] where the parameters mean: format Allow to choose a file format for the output file different from the file format of the input file. variant Allow to choose a file format variant for the output file. It is a comma-separated list of variant flags. Not all combinations are supported, and specifying inconsistent flags will result in an error message. type Only honored if --remember is also specified. Defines what kind of hard disk type this image should be. remember Keep the destination image registered after it was successfully written. Show Sample Output
-4vboxmanage clonehd --format VMDK <source image|uuid> <destination image> -
-4find . -name \*.pyc -delete
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Easy way to find out what Debian version your machine is running Show Sample Output
-4cat /etc/debian_version -
netstat has two lines of headers: Active Internet connections (w/o servers) Proto Recv-Q Send-Q Local Address Foreign Address State Added a filter in the awk command to remove them
-4netstat -ntu | awk ' $5 ~ /^[0-9]/ {print $5}' | cut -d: -f1 | sort | uniq -c | sort -n - ‹ First < 539 540 541 542 543 > Last ›
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